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[35/50] incubator-freemarker-site git commit: 2.3.26-nightly docs
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+<div class="col-right"><div class="page-content"><div class="page-title"><div class="pagers top"><a class="paging-arrow previous" href="pgui_config_templateloading.html"><span>Previous</span></a><a class="paging-arrow next" href="pgui_config_templateconfigurations.html"><span>Next</span></a></div><div class="title-wrapper">
+<h1 class="content-header header-section1" id="pgui_config_errorhandling" itemprop="headline">Error handling</h1>
+</div></div><div class="page-menu">
+<div class="page-menu-title">Page Contents</div>
+<ul><li><a class="page-menu-link" href="#autoid_43" data-menu-target="autoid_43">The possible exceptions</a></li><li><a class="page-menu-link" href="#autoid_44" data-menu-target="autoid_44">Customizing the behavior regarding TemplatException-s</a></li><li><a class="page-menu-link" href="#autoid_45" data-menu-target="autoid_45">TemplateException logging</a></li><li><a class="page-menu-link" href="#autoid_46" data-menu-target="autoid_46">Explicit error handling in templates</a></li></ul> </div>
+
+
+
+
+<h2 class="content-header header-section2" id="autoid_43">The possible exceptions</h2>
+
+
+ <p>The exceptions that can occur regarding FreeMarker could be
+ classified like this:</p>
+
+ <ul>
+ <li>
+ <p>Exceptions occurring when you configure FreeMarker:
+ Typically you configure FreeMarker only once in your
+ application, when your application initializes itself. Of
+ course, during this, exceptions can occur.</p>
+ </li>
+
+ <li>
+ <p>Exceptions occurring when loading and parsing templates:
+ When you call
+ <code class="inline-code">Configuration.getTemplate(<em class="code-color">...</em>)</code>,
+ FreeMarker has to load the template into the memory and parse it
+ (unless the template is already <a href="pgui_config_templateloading.html#pgui_config_templateloading_caching">cached</a> in
+ that <code class="inline-code">Configuration</code> object). During this,
+ these kind of exceptions can occur:</p>
+
+ <ul>
+ <li>
+ <p><code class="inline-code">TemplateNotFoundException</code> because
+ the requested template doesn't exist. Note this extends
+ <code class="inline-code">IOException</code>.</p>
+ </li>
+
+ <li>
+ <p><code class="inline-code">freemarker.core.ParseException</code>
+ because the template is syntactically incorrect according
+ the rules of the FTL language. Note that this error occurs
+ when you obtain the <code class="inline-code">Template</code> object
+ (<code class="inline-code">Configuration.getTemplate(<em class="code-color">...</em>)</code>),
+ not later when you execute
+ (<code class="inline-code">Template.process(<em class="code-color">...</em>)</code>)
+ the template. . Note this extends
+ <code class="inline-code">IOException</code> (legacy).</p>
+ </li>
+
+ <li>
+ <p>Any other kind of <code class="inline-code">IOException</code>
+ because an error has occurred while reading an existing
+ template. For example you have no right to read the file, or
+ the connection through which you read the template is
+ broken. The emitter of these is the <a href="pgui_config_templateloading.html"><code>TemplateLoader</code>
+ object</a>, which is plugged into the
+ <code class="inline-code">Configuration</code> object.</p>
+ </li>
+ </ul>
+ </li>
+
+ <li>
+ <p>Exceptions occurring when executing (processing)
+ templates, that is, when you call
+ <code class="inline-code">Template.process(<em class="code-color">...</em>)</code>.
+ Two kind of exceptions can occur:</p>
+
+ <ul>
+ <li>
+ <p><code class="inline-code">IOException</code> because there was an
+ error when trying to write into the output writer.</p>
+ </li>
+
+ <li>
+ <p><code class="inline-code">freemarker.template.TemplatException</code>
+ because other problem occurred while executing the template.
+ For example, a frequent error is referring to a variable
+ that doesn't exist in the data-model. By default, when a
+ <code class="inline-code">TemplatException</code> occurs, FreeMarker
+ prints the FTL error message and the stack trace to the
+ output writer with plain text format, and then aborts the
+ template execution by re-throwing the
+ <code class="inline-code">TemplatException</code>, which then you can
+ catch as
+ <code class="inline-code">Template.process(<em class="code-color">...</em>)</code>
+ throws it. This behavior can be customized, and in fact, it
+ should be; see the recommended configuration <a href="pgui_quickstart_createconfiguration.html">here</a>.
+ By default FreeMarker also <a href="pgui_misc_logging.html">logs</a>
+ <code class="inline-code">TemplatException</code>-s.</p>
+ </li>
+ </ul>
+ </li>
+ </ul>
+
+
+
+
+
+<h2 class="content-header header-section2" id="autoid_44">Customizing the behavior regarding TemplatException-s</h2>
+
+
+ <p><code class="inline-code">TemplateException</code>-s thrown during the
+ template processing are handled by the
+ <code class="inline-code">freemarker.template.TemplateExceptionHandler</code>
+ object, which is plugged into the <code class="inline-code">Configuration</code>
+ object with its
+ <code class="inline-code">setTemplateExceptionHandler(<em class="code-color">...</em>)</code>
+ method. These are the <code class="inline-code">TemplateExceptionHandler</code>
+ implementations with FreeMarker comes with:</p>
+
+ <ul>
+ <li>
+ <p><code class="inline-code">TemplateExceptionHandler.DEBUG_HANDLER</code>:
+ Prints stack trace (includes FTL error message and FTL stack
+ trace) and re-throws the exception. This is the default handler,
+ however, you should be careful not using it in production
+ environment, as it shows technical information about your
+ system.</p>
+ </li>
+
+ <li>
+ <p><code class="inline-code">TemplateExceptionHandler.HTML_DEBUG_HANDLER</code>:
+ Same as <code class="inline-code">DEBUG_HANDLER</code>, but it formats the
+ stack trace so that it will be readable with Web browsers.
+ Recommended over <code class="inline-code">DEBUG_HANDLER</code> when you
+ generate HTML pages, but it should only be used for development
+ as it shows technical information about your system.</p>
+ </li>
+
+ <li>
+ <p><code class="inline-code">TemplateExceptionHandler.IGNORE_HANDLER</code>:
+ Simply suppresses all exceptions (though FreeMarker will still
+ log them if
+ <code class="inline-code">Configuration.getLogTemplateExceptions</code> is
+ <code class="inline-code">true</code>). It does nothing to handle the event.
+ It does not re-throw the exception.</p>
+ </li>
+
+ <li>
+ <p><code class="inline-code">TemplateExceptionHandler.RETHROW_HANDLER</code>:
+ Simply re-throws all exceptions; it doesn't do anything else.
+ This should be used in most applications today. It doesn't print
+ anything to the output about the error, which makes it safe, and
+ the developers can still get the error details from the logs.
+ It's not as convenient during template development as
+ <code class="inline-code">HTML_DEBUG_HANDLER</code> or
+ <code class="inline-code">DEBUG_HANDLER</code> though. For more information
+ about handling errors in Web applications <a href="app_faq.html#misc.faq.niceErrorPage">see the FAQ</a>.</p>
+ </li>
+ </ul>
+
+ <p>You can also write a custom
+ <code class="inline-code">TemplateExceptionHandler</code> by implementing that
+ interface, which contains this method:</p>
+
+
+
+<div class="code-wrapper"><pre class="code-block code-unspecified">void handleTemplateException(TemplateException te, Environment env, Writer out)
+ throws TemplateException;</pre></div>
+
+ <p>Whenever a <code class="inline-code">TemplateException</code> occurs, this
+ method will be called. The exception to handle is in the
+ <code class="inline-code">te</code> argument, the runtime environment of the
+ template processing is in the <code class="inline-code">env</code> argument, and
+ the handler can print to the output using the <code class="inline-code">out</code>
+ argument. If this method throws exception (usually it re-throws
+ <code class="inline-code">te</code>), then the template processing will be
+ aborted, and
+ <code class="inline-code">Template.process(<em class="code-color">...</em>)</code>
+ will throw the same exception. If
+ <code class="inline-code">handleTemplateException</code> doesn't throw exception,
+ then template processing continues as if nothing had happen, but the
+ statement that caused the exception will be skipped (see more
+ later). Of course, the handler can still print an error indicator to
+ the output.</p>
+
+ <p>Let's see how FreeMarker skips statements when the error
+ handler doesn't throw exception, through examples. Assume we are
+ using this template exception handler:</p>
+
+
+
+<div class="code-wrapper"><pre class="code-block code-unspecified">class MyTemplateExceptionHandler implements TemplateExceptionHandler {
+ public void handleTemplateException(TemplateException te, Environment env, java.io.Writer out)
+ throws TemplateException {
+ try {
+ out.write("[ERROR: " + te.getMessage() + "]");
+ } catch (IOException e) {
+ throw new TemplateException("Failed to print error message. Cause: " + e, env);
+ }
+ }
+}
+
+<em>...</em>
+
+cfg.setTemplateExceptionHandler(new MyTemplateExceptionHandler());</pre></div>
+
+ <p>If an error occurs in an interpolation which is not inside an
+ FTL tag (that is, not enclosed into
+ <code class="inline-code"><#<em class="code-color">...</em>></code> or
+ <code class="inline-code"><@<em class="code-color">...</em>></code>), then
+ the whole interpolation will be skipped. So this template (assuming
+ that <code class="inline-code">badVar</code> is missing from the
+ data-model):</p>
+
+
+
+<div class="code-wrapper"><pre class="code-block code-template">a${badVar}b</pre></div>
+
+ <p>will print this if we use the
+ <code class="inline-code">MyTemplateExceptionHandler</code>:</p>
+
+
+
+<div class="code-wrapper"><pre class="code-block code-output">a[ERROR: Expression badVar is undefined on line 1, column 4 in test.ftl.]b</pre></div>
+
+ <p>This template will print the same (except that the column
+ number will differ...):</p>
+
+
+
+<div class="code-wrapper"><pre class="code-block code-template">a${"moo" + badVar}b</pre></div>
+
+ <p>because the whole interpolation is skipped if any error occurs
+ inside it.</p>
+
+ <p>If an error occurs when evaluating the value of a parameter
+ for a directive call, or if there are other problems with the
+ parameter list, or if an error occurs when evaluating
+ <code class="inline-code"><em class="code-color">exp</em></code> in
+ <code class="inline-code"><@<em class="code-color">exp</em>
+ <em class="code-color">...</em>></code>, or if the value of
+ <code class="inline-code"><em class="code-color">exp</em></code> is not an
+ user-defined directive, then the whole directive call is skipped.
+ For example this:</p>
+
+
+
+<div class="code-wrapper"><pre class="code-block code-template">a<#if badVar>Foo</#if>b</pre></div>
+
+ <p>will print this:</p>
+
+
+
+<div class="code-wrapper"><pre class="code-block code-output">a[ERROR: Expression badVar is undefined on line 1, column 7 in test.ftlh.]b</pre></div>
+
+ <p>Note that the error occurred in the <code class="inline-code">if</code>
+ start-tag (<code class="inline-code"><#if badVar></code>), but the whole
+ directive call was skipped. Logically, the nested content
+ (<code class="inline-code">Foo</code>) was skipped with this, since the nested
+ content is handled (printed) by the enclosing directive
+ (<code class="inline-code">if</code>).</p>
+
+ <p>The output will be the same with this (except that the column
+ number will differ...):</p>
+
+
+
+<div class="code-wrapper"><pre class="code-block code-template">a<#if "foo${badVar}" == "foobar">Foo</#if>b</pre></div>
+
+ <p>because whole directive calling will be skipped if any error
+ occurs during the parameter evaluation.</p>
+
+ <p>The directive call will not be skipped if the error occurs
+ after the execution of the directive was already started. That is,
+ if an error occurs in the nested content:</p>
+
+
+
+<div class="code-wrapper"><pre class="code-block code-template">a
+<#if true>
+ Foo
+ ${badVar}
+ Bar
+</#if>
+c</pre></div>
+
+ <p>or in the macro definition body:</p>
+
+
+
+<div class="code-wrapper"><pre class="code-block code-template">a
+<@test />
+b
+<#macro test>
+ Foo
+ ${badVar}
+ Bar
+</#macro></pre></div>
+
+ <p>the output will be something like:</p>
+
+
+
+<div class="code-wrapper"><pre class="code-block code-output">a
+ Foo
+ [ERROR: Expression badVar is undefined on line 4, column 5 in test.ftlh.]
+ Bar
+c</pre></div>
+
+
+
+
+
+<h2 class="content-header header-section2" id="autoid_45">TemplateException logging</h2>
+
+
+ <p>By default FreeMarker <a href="pgui_misc_logging.html">logs</a> all
+ <code class="inline-code">TemplateException</code>-s under the
+ <code class="inline-code">freemarker.runtime</code> log category, even when it
+ will throw it at you from its public API. As logging has become
+ common practice in Java applications, this usually leads to double
+ logging of exceptions now, so it's recommended to disable this
+ legacy behavior by
+ <code class="inline-code">cfg.setLogTemplateExceptions(false)</code> (or
+ <code class="inline-code">log_template_exceptions=false</code>) where you
+ configure FreeMarker.</p>
+
+
+
+
+
+<h2 class="content-header header-section2" id="autoid_46">Explicit error handling in templates</h2>
+
+
+ <p>Although it has nothing to do with the FreeMarker
+ configuration (the topic of this chapter), for the sake of
+ completeness it's mentioned here that you can handle errors directly
+ inside the templates as well:</p>
+
+ <ul>
+ <li>
+ <p>Handling missing/null variables: <a href="dgui_template_exp.html#dgui_template_exp_missing">Template Author's Guide/The Template/Expressions/Handling missing values</a></p>
+ </li>
+
+ <li>
+ <p>Substituting failing but expendable page sections: <a href="ref_directive_attempt.html">Template Language Reference/Directive Reference/attempt, recover</a></p>
+ </li>
+ </ul>
+ <div class="bottom-pagers-wrapper"><div class="pagers bottom"><a class="paging-arrow previous" href="pgui_config_templateloading.html"><span>Previous</span></a><a class="paging-arrow next" href="pgui_config_templateconfigurations.html"><span>Next</span></a></div></div></div></div> </div>
+ </div>
+<div class="site-footer"><div class="site-width"><div class="footer-top"><div class="col-left sitemap"><div class="column"><h3 class="column-header">Overview</h3><ul><li><a href="http://freemarker.org/">What is FreeMarker?</a></li><li><a href="http://freemarker.org/freemarkerdownload.html">Download</a></li><li><a href="app_versions.html">Version history</a></li><li><a href="http://freemarker.org/history.html">About us</a></li><li><a itemprop="license" href="app_license.html">License</a></li></ul></div><div class="column"><h3 class="column-header">Handy stuff</h3><ul><li><a href="http://freemarker-online.kenshoo.com/">Try template online</a></li><li><a href="dgui_template_exp.html#exp_cheatsheet">Expressions cheatsheet</a></li><li><a href="ref_directive_alphaidx.html">#directives</a></li><li><a href="ref_builtins_alphaidx.html">?built_ins</a></li><li><a href="ref_specvar.html">.special_vars</a></li></ul></div><div class="column"><h3 class="column-header">Community</h3><ul><li><a href
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+Last generated:
+<time itemprop="dateModified" datetime="2017-03-13T10:55:28Z" title="Monday, March 13, 2017 10:55:28 AM GMT">2017-03-13 10:55:28 GMT</time>, for Freemarker 2.3.26 </p>
+<p class="copyright">
+� <span itemprop="copyrightYear">1999</span>\u20132017
+<a itemtype="http://schema.org/Organization" itemprop="copyrightHolder" href="http://apache.org/">The Apache Software Foundation</a>. Apache FreeMarker, FreeMarker, Apache Incubator, Apache, the Apache FreeMarker logo are trademarks of The Apache Software Foundation. </p>
+</div></div></div></body>
+</html>
http://git-wip-us.apache.org/repos/asf/incubator-freemarker-site/blob/52c070a9/builds/2.3.26-nightly/pgui_config_incompatible_improvements.html
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@@ -0,0 +1,173 @@
+<!doctype html>
+<!-- Generated by FreeMarker/Docgen from DocBook -->
+<html lang="en" class="page-type-section">
+<head prefix="og: http://ogp.me/ns#">
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h-field" name="q" type="search" class="search-input" placeholder="Search" spellcheck="false" autocorrect="off" autocomplete="off"><button type="submit" class="search-btn"><span class="sr-only">Search</span></button></fieldset></form></div><div class="site-width breadcrumb-row"><ul class="breadcrumb" itemscope itemtype="http://schema.org/BreadcrumbList"><li class="step-0" itemprop="itemListElement" itemscope itemtype="http://schema.org/ListItem"><a class="label" itemprop="item" href="index.html"><span itemprop="name">Apache FreeMarker Manual</span></a></li><li class="step-1" itemprop="itemListElement" itemscope itemtype="http://schema.org/ListItem"><a class="label" itemprop="item" href="pgui.html"><span itemprop="name">Programmer's Guide</span></a></li><li class="step-2" itemprop="itemListElement" itemscope itemtype="http://schema.org/ListItem"><a class="label" itemprop="item" href="pgui_config.html"><span itemprop="name">The Configuration</span></a></li><li class="step-3" itempr
op="itemListElement" itemscope itemtype="http://schema.org/ListItem"><a class="label" itemprop="item" href="pgui_config_incompatible_improvements.html"><span itemprop="name">The "incompatible improvements" setting</span></a></li></ul><div class="bookmarks" title="Bookmarks"><span class="sr-only">Bookmarks:</span><ul class="bookmark-list"><li><a href="alphaidx.html">Alpha. index</a></li><li><a href="gloss.html">Glossary</a></li><li><a href="dgui_template_exp.html#exp_cheatsheet">Expressions</a></li><li><a href="ref_builtins_alphaidx.html">?builtins</a></li><li><a href="ref_directive_alphaidx.html">#directives</a></li><li><a href="ref_specvar.html">.spec_vars</a></li><li><a href="app_faq.html">FAQ</a></li></ul></div></div></div> <div class="main-content site-width">
+ <div class="content-wrapper">
+ <div id="table-of-contents-wrapper" class="col-left">
+ <script>var breadcrumb = ["Apache FreeMarker Manual","Programmer\'s Guide","The Configuration","The \"incompatible improvements\" setting"];</script>
+ <script src="toc.js?1489402528979"></script>
+ <script src="docgen-resources/main.min.js?1489402528979"></script>
+ </div>
+<div class="col-right"><div class="page-content"><div class="page-title"><div class="pagers top"><a class="paging-arrow previous" href="pgui_config_custom_formats.html"><span>Previous</span></a><a class="paging-arrow next" href="pgui_misc.html"><span>Next</span></a></div><div class="title-wrapper">
+<h1 class="content-header header-section1" id="pgui_config_incompatible_improvements" itemprop="headline">The "incompatible improvements" setting</h1>
+</div></div><div class="page-menu">
+<div class="page-menu-title">Page Contents</div>
+<ul><li><a class="page-menu-link" href="#autoid_51" data-menu-target="autoid_51">What does it do</a></li><li><a class="page-menu-link" href="#pgui_config_incompatible_improvements_how_to_set" data-menu-target="pgui_config_incompatible_improvements_how_to_set">How to set it</a></li></ul> </div>
+
+
+
+
+<h2 class="content-header header-section2" id="autoid_51">What does it do</h2>
+
+
+ <p>This setting specifies the FreeMarker version number where the
+ not 100% backward compatible bug fixes and improvements
+ <em>that you want to enable</em> were already
+ implemented. Usually, it's a bad idea to left it on its default,
+ which is 2.3.0 (maximum backward compatibility).</p>
+
+ <p>In new projects you should set this to the FreeMarker version
+ that you are actually using. In older projects it's also usually
+ better to keep this high, however you better check the changes
+ activated (find them in <a href="http://freemarker.org/docs/api/freemarker/template/Configuration.html#Configuration-freemarker.template.Version-">the
+ API JavaDoc of the <code>Configuration(Version)</code>
+ constructor</a>), at least if not only the 3rd version number
+ (the micro version) of "incompatible improvements"
+ setting is increased. Generally, as far as you only increase the
+ last version number of this setting, the changes are low
+ risk.</p>
+
+ <p>Bug fixes and improvements that are fully backward compatible,
+ also those that are important security fixes, are enabled regardless
+ of the "incompatible improvements" setting.</p>
+
+ <p>An important consequence of setting this setting is that now
+ your application will check if the stated minimum FreeMarker version
+ requirement is met. Like if you set this setting to 2.3.22, but
+ accidentally the application is deployed with FreeMarker 2.3.21,
+ then FreeMarker will fail, telling that a higher version is
+ required. After all, the fixes/improvements you have requested
+ aren't available on a lower version.</p>
+
+
+
+
+
+<h2 class="content-header header-section2" id="pgui_config_incompatible_improvements_how_to_set">How to set it</h2>
+
+
+ <p>The incompatible improvements setting exists on the
+ <code class="inline-code">Configuration</code> level. It can be set on multiple
+ ways:</p>
+
+ <ul>
+ <li>
+ <p>Create the
+ <code class="inline-code">freemarker.template.Configuration</code> object
+ like:</p>
+
+
+
+<div class="code-wrapper"><pre class="code-block code-unspecified">... = new Configuration(Configuration.VERSION_2_3_25)</pre></div>
+ </li>
+
+ <li>
+ <p>Or, alter the <code class="inline-code">Configuration</code> singleton
+ where you initialize its other settings like:</p>
+
+
+
+<div class="code-wrapper"><pre class="code-block code-unspecified">cfg.setIncompatibleImprovements(Configuration.VERSION_2_3_25)</pre></div>
+ </li>
+
+ <li>
+ <p>Or, if you are configuring FreeMarker with properties
+ (<code class="inline-code">*.properties</code> file or
+ <code class="inline-code">java.util.Properties</code> object), add:</p>
+
+
+
+<div class="code-wrapper"><pre class="code-block code-unspecified">incompatible_improvements=2.3.25</pre></div>
+ </li>
+
+ <li>
+ <p>Or, if you are configuring FreeMarker through
+ <code class="inline-code">FreemarkerServlet</code>, add this
+ <code class="inline-code">init-param</code> to it in the
+ <code class="inline-code">web.xml</code>:</p>
+
+
+
+<div class="code-wrapper"><pre class="code-block code-unspecified"><init-param>
+ <param-name>incompatible_improvements</param-name>
+ <param-value>2.3.25</param-value>
+</init-param></pre></div>
+ </li>
+ </ul>
+
+ <p>But, <em>if you set the
+ <code class="inline-code">object_wrapper</code> setting</em> (same as
+ <code class="inline-code">Configuration.setObjectWrapper(ObjectWrapper)</code>) of
+ your configuration, then it's important to know that
+ <code class="inline-code">BeansWrapper</code> and its subclasses (most
+ importantly, <code class="inline-code">DefaultObjectWrapper</code>) has its own
+ independent <code class="inline-code">incompatibleImprovements</code> property,
+ and some fixes/improvements are activated by that, not by
+ <code class="inline-code">Configuration</code>'s similar setting. You don't have
+ to be aware of this complication if you aren't setting the
+ <code class="inline-code">object_wrapper</code> configuration setting anywhere,
+ because the default <code class="inline-code">object_wrapper</code> has the same
+ "incompatible improvements" as of the
+ <code class="inline-code">Configuration</code>. But if you are setting the
+ <code class="inline-code">object_wrapper</code>, then you must not forget to set
+ the <code class="inline-code">incompatibleImprovements</code> property of the
+ <code class="inline-code">ObjectWrapper</code> itself, in additionally to that of
+ the <code class="inline-code">Configuration</code>. (Note that it's fine to have
+ different "incompatible improvements" for the
+ <code class="inline-code">Configuration</code> and for the
+ <code class="inline-code">ObjectWrapper</code>, only it should be a conscious
+ decision.) <a href="pgui_datamodel_objectWrapper.html#topic.setDefaultObjectWrapperIcIIndividually">See here how
+ to set it</a> in the case of
+ <code class="inline-code">DefaultObjectWrapper</code> (for
+ <code class="inline-code">BeansWrapper</code> it's the same, only with different
+ class name of course).</p>
+ <div class="bottom-pagers-wrapper"><div class="pagers bottom"><a class="paging-arrow previous" href="pgui_config_custom_formats.html"><span>Previous</span></a><a class="paging-arrow next" href="pgui_misc.html"><span>Next</span></a></div></div></div></div> </div>
+ </div>
+<div class="site-footer"><div class="site-width"><div class="footer-top"><div class="col-left sitemap"><div class="column"><h3 class="column-header">Overview</h3><ul><li><a href="http://freemarker.org/">What is FreeMarker?</a></li><li><a href="http://freemarker.org/freemarkerdownload.html">Download</a></li><li><a href="app_versions.html">Version history</a></li><li><a href="http://freemarker.org/history.html">About us</a></li><li><a itemprop="license" href="app_license.html">License</a></li></ul></div><div class="column"><h3 class="column-header">Handy stuff</h3><ul><li><a href="http://freemarker-online.kenshoo.com/">Try template online</a></li><li><a href="dgui_template_exp.html#exp_cheatsheet">Expressions cheatsheet</a></li><li><a href="ref_directive_alphaidx.html">#directives</a></li><li><a href="ref_builtins_alphaidx.html">?built_ins</a></li><li><a href="ref_specvar.html">.special_vars</a></li></ul></div><div class="column"><h3 class="column-header">Community</h3><ul><li><a href
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+Last generated:
+<time itemprop="dateModified" datetime="2017-03-13T10:55:28Z" title="Monday, March 13, 2017 10:55:28 AM GMT">2017-03-13 10:55:28 GMT</time>, for Freemarker 2.3.26 </p>
+<p class="copyright">
+� <span itemprop="copyrightYear">1999</span>\u20132017
+<a itemtype="http://schema.org/Organization" itemprop="copyrightHolder" href="http://apache.org/">The Apache Software Foundation</a>. Apache FreeMarker, FreeMarker, Apache Incubator, Apache, the Apache FreeMarker logo are trademarks of The Apache Software Foundation. </p>
+</div></div></div></body>
+</html>
http://git-wip-us.apache.org/repos/asf/incubator-freemarker-site/blob/52c070a9/builds/2.3.26-nightly/pgui_config_outputformatsautoesc.html
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--- /dev/null
+++ b/builds/2.3.26-nightly/pgui_config_outputformatsautoesc.html
@@ -0,0 +1,210 @@
+<!doctype html>
+<!-- Generated by FreeMarker/Docgen from DocBook -->
+<html lang="en" class="page-type-section">
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+<title>Associating output formats with templates - Apache FreeMarker Manual</title>
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+ <![endif]--><div class="header-top-bg"><div class="site-width header-top"><a class="logo" href="http://freemarker.org" role="banner"> <img itemprop="image" src="logo.png" alt="FreeMarker">
+</a><ul class="tabs"><li><a href="http://freemarker.org/">Home</a></li><li class="current"><a href="index.html">Manual</a></li><li><a class="external" href="api/index.html">Java API</a></li></ul><ul class="secondary-tabs"><li><a class="tab icon-heart" href="http://freemarker.org/contribute.html" title="Contribute"><span>Contribute</span></a></li><li><a class="tab icon-bug" href="https://issues.apache.org/jira/browse/FREEMARKER/" title="Report a Bug"><span>Report a Bug</span></a></li><li><a class="tab icon-download" href="http://freemarker.org/freemarkerdownload.html" title="Download"><span>Download</span></a></li></ul></div></div><div class="header-bottom-bg"><div class="site-width search-row"><a href="index.html" class="navigation-header">Manual</a><div class="navigation-header"></div><form method="get" class="search-form" action="search-results.html"><fieldset><legend class="sr-only">Search form</legend><label for="search-field" class="sr-only">Search query</label><input id="searc
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op="itemListElement" itemscope itemtype="http://schema.org/ListItem"><a class="label" itemprop="item" href="pgui_config_outputformatsautoesc.html"><span itemprop="name">Associating output formats with templates</span></a></li></ul><div class="bookmarks" title="Bookmarks"><span class="sr-only">Bookmarks:</span><ul class="bookmark-list"><li><a href="alphaidx.html">Alpha. index</a></li><li><a href="gloss.html">Glossary</a></li><li><a href="dgui_template_exp.html#exp_cheatsheet">Expressions</a></li><li><a href="ref_builtins_alphaidx.html">?builtins</a></li><li><a href="ref_directive_alphaidx.html">#directives</a></li><li><a href="ref_specvar.html">.spec_vars</a></li><li><a href="app_faq.html">FAQ</a></li></ul></div></div></div> <div class="main-content site-width">
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+<div class="col-right"><div class="page-content"><div class="page-title"><div class="pagers top"><a class="paging-arrow previous" href="pgui_config_templateconfigurations.html"><span>Previous</span></a><a class="paging-arrow next" href="pgui_config_custom_formats.html"><span>Next</span></a></div><div class="title-wrapper">
+<h1 class="content-header header-section1" id="pgui_config_outputformatsautoesc" itemprop="headline">Associating output formats with templates</h1>
+</div></div><p>The output format associated to a template decides if and what
+ kind of auto-escaping is used in that template (unless the template
+ <a href="dgui_misc_autoescaping.html#dgui_misc_autoescaping_overrideoformat">overrides that
+ with directives</a>). By default, templates have
+ "undefined" output format associated, which does no
+ escaping, and in general gives the behavior that you would expect from
+ a template engine that doesn't care about output formats and escaping.
+ However, if the <code class="inline-code">recognize_standard_file_extensions</code>
+ <a href="pgui_config_settings.html">setting</a> is
+ <code class="inline-code">true</code> (which is the default with <a href="pgui_config_incompatible_improvements.html">the
+ <code>incompatible_improvements</code> setting</a> set to
+ 2.3.24 or higher), templates whose source name ends with
+ <code class="inline-code">".ftlh"</code> gets "HTML" output format, and
+ those with <code class="inline-code">".ftlx"</code> get "XML" output
+ format. Using the <code class="inline-code">ftlh</code> and <code class="inline-code">ftlx</code>
+ file extensions is the recommended way of activating HTML and XML
+ auto-escaping. You can also associate output formats to templates
+ based on arbitrary name patterns with the <a href="pgui_config_templateconfigurations.html"><code>template_configurations</code>
+ setting</a>; see some examples of that below.</p><p>There's another a related setting, called
+ <code class="inline-code">auto_escaping_policy</code>, which can be used to disable
+ auto-escaping even if the current output format supports it, or enable
+ auto-escaping even if the format by default doesn't escape (but it
+ supports it). Using this setting rarely advisable, as it's potentially
+ confusing for the template authors. (Instead, escaping can be turned
+ on/off explicitly inside the templates with the
+ <code class="inline-code">auto_esc</code> parameter of the <a href="ref_directive_ftl.html"><code>ftl</code> directive</a>,
+ or with the <a href="ref_directive_autoesc.html"><code>noautoesc</code></a>
+ and <a href="ref_directive_autoesc.html"><code>autoesc</code>
+ directive</a>s.)</p><p>To check if you have configured FreeMarker properly, you can use
+ this template:</p>
+
+<div class="code-wrapper"><pre class="code-block code-template"><p>Output format: ${.output_format}
+<p>Auto-escaping: ${.auto_esc?c}</pre></div><p>See the <a href="dgui_misc_autoescaping.html#topic.predefinedOutputFormats">table of
+ predefined output formats here...</a></p><p>Configuration examples:</p><ul>
+ <li>
+ <p>To enable automatic output format associations to
+ <code class="inline-code">*.ftlh</code> and <code class="inline-code">*.ftlx</code>,
+ either:</p>
+
+ <ul>
+ <li>
+ <p>Use <code class="inline-code">incompatible_improvements</code> 2.3.24
+ or higher; see <a href="pgui_config_incompatible_improvements.html#pgui_config_incompatible_improvements_how_to_set">how
+ to set
+ <code>incompatible_improvements</code></a></p>
+ </li>
+
+ <li>
+ <p>Or, enable standard file extension recognizing
+ explicitly:</p>
+
+
+
+<div class="code-wrapper"><pre class="code-block code-unspecified">// Where you initalize the Configuration singletion, add:
+cfg.setRecognizeStandardFileExtensions(true);</pre></div>
+
+ <p>or if you configure FreeMarker with Java
+ <code class="inline-code">*.properties</code> file:</p>
+
+
+
+<div class="code-wrapper"><pre class="code-block code-unspecified">recognizeStandardFileExtensions = true</pre></div>
+ </li>
+ </ul>
+ </li>
+
+ <li>
+ <p>Let's say that you want to associate all templates in the
+ <code class="inline-code">mail</code> directory to the HTML output format. You
+ could achieve that like this (assuming that you are getting the
+ templates with
+ <code class="inline-code">cfg.getTemplate(<em class="code-color">...</em>)</code>,
+ and not instantiating them yourself):</p>
+
+
+
+<div class="code-wrapper"><pre class="code-block code-unspecified">// Where you initalize the Configuration singletion, add:
+
+TemplateConfiguration tcHTML = new TemplateConfiguration();
+tcHTML.setOutputFormat(HTMLOutputFormat.INSTANCE);
+
+cfg.setTemplateConfigurations(
+ new ConditionalTemplateConfigurationFactory(
+ new PathGlobMatcher("mail/**"),
+ tcHTML));</pre></div>
+
+ <p>or if you are configuring FreeMarker from Java
+ <code class="inline-code">*.properties</code> file (the <code class="inline-code">\</code>-s
+ are required for the Java Properties file format only):</p>
+
+
+
+<div class="code-wrapper"><pre class="code-block code-unspecified">templateConfigurations = \
+ ConditionalTemplateConfigurationFactory( \
+ PathGlobMatcher("mail/**"), \
+ TemplateConfiguration(outputFormat = HTMLOutputFormat()))</pre></div>
+ </li>
+
+ <li>
+ <p>Let's say you want to associate templates with
+ <code class="inline-code">xml</code> file extension to the XML output format,
+ templates with <code class="inline-code">html</code> and <code class="inline-code">htm</code>
+ extension to the HTML output format, and templates with
+ <code class="inline-code">rtf</code> extension to the <code class="inline-code">RTF</code>
+ output format. You could achieve that like this (assuming that you
+ are getting the templates with
+ <code class="inline-code">cfg.getTemplate(<em class="code-color">...</em>)</code>,
+ and not instantiating them yourself):</p>
+
+
+
+<div class="code-wrapper"><pre class="code-block code-unspecified">TemplateConfiguration tcHTML = new TemplateConfiguration();
+tcHTML.setOutputFormat(HTMLOutputFormat.INSTANCE);
+
+TemplateConfiguration tcXML = new TemplateConfiguration();
+tcXML.setOutputFormat(XMLOutputFormat.INSTANCE);
+
+TemplateConfiguration tcRTF = new TemplateConfiguration();
+tcRTF.setOutputFormat(RTFOutputFormat.INSTANCE);
+
+cfg.setTemplateConfigurations(
+ new FirstMatchTemplateConfigurationFactory(
+ new ConditionalTemplateConfigurationFactory(
+ new FileExtensionMatcher("xml"),
+ tcXML),
+ new ConditionalTemplateConfigurationFactory(
+ new OrMatcher(
+ new FileExtensionMatcher("html"),
+ new FileExtensionMatcher("htm")),
+ tcHTML),
+ new ConditionalTemplateConfigurationFactory(
+ new FileExtensionMatcher("rtf"),
+ tcRTF)
+ ).allowNoMatch(true)
+);</pre></div>
+
+ <p>or if you are configuring FreeMarker from Java
+ <code class="inline-code">*.properties</code> file (the <code class="inline-code">\</code>-s
+ are required for the Java Properties file format only):</p>
+
+
+
+<div class="code-wrapper"><pre class="code-block code-unspecified">templateConfigurations = \
+ FirstMatchTemplateConfigurationFactory( \
+ ConditionalTemplateConfigurationFactory( \
+ FileExtensionMatcher("xml"), \
+ TemplateConfiguration(outputFormat = XMLOutputFormat())), \
+ ConditionalTemplateConfigurationFactory( \
+ OrMatcher( \
+ FileExtensionMatcher("html"), \
+ FileExtensionMatcher("htm")), \
+ TemplateConfiguration(outputFormat = HTMLOutputFormat())), \
+ ConditionalTemplateConfigurationFactory( \
+ FileExtensionMatcher("rtf"), \
+ TemplateConfiguration(outputFormat = RTFOutputFormat())), \
+ allowNoMatch = true)</pre></div>
+ </li>
+ </ul><p>(You can find some more complex
+ <code class="inline-code">template_configurations</code> setups <a href="pgui_config_templateconfigurations.html">here...</a>)</p><div class="bottom-pagers-wrapper"><div class="pagers bottom"><a class="paging-arrow previous" href="pgui_config_templateconfigurations.html"><span>Previous</span></a><a class="paging-arrow next" href="pgui_config_custom_formats.html"><span>Next</span></a></div></div></div></div> </div>
+ </div>
+<div class="site-footer"><div class="site-width"><div class="footer-top"><div class="col-left sitemap"><div class="column"><h3 class="column-header">Overview</h3><ul><li><a href="http://freemarker.org/">What is FreeMarker?</a></li><li><a href="http://freemarker.org/freemarkerdownload.html">Download</a></li><li><a href="app_versions.html">Version history</a></li><li><a href="http://freemarker.org/history.html">About us</a></li><li><a itemprop="license" href="app_license.html">License</a></li></ul></div><div class="column"><h3 class="column-header">Handy stuff</h3><ul><li><a href="http://freemarker-online.kenshoo.com/">Try template online</a></li><li><a href="dgui_template_exp.html#exp_cheatsheet">Expressions cheatsheet</a></li><li><a href="ref_directive_alphaidx.html">#directives</a></li><li><a href="ref_builtins_alphaidx.html">?built_ins</a></li><li><a href="ref_specvar.html">.special_vars</a></li></ul></div><div class="column"><h3 class="column-header">Community</h3><ul><li><a href
="https://github.com/freemarker/freemarker">FreeMarker on Github</a></li><li><a href="https://twitter.com/freemarker">Follow us on Twitter</a></li><li><a href="https://issues.apache.org/jira/browse/FREEMARKER/">Report a bug</a></li><li><a href="http://stackoverflow.com/questions/ask?tags=freemarker">Ask a question</a></li><li><a href="http://freemarker.org/mailing-lists.html">Mailing lists</a></li></ul></div></div><div class="col-right"><ul class="social-icons"><li><a class="github" href="https://github.com/freemarker/freemarker">Github</a></li><li><a class="twitter" href="https://twitter.com/freemarker">Twitter</a></li><li><a class="stack-overflow" href="http://stackoverflow.com/questions/ask?tags=freemarker">Stack Overflow</a></li></ul><a class="xxe" href="http://www.xmlmind.com/xmleditor/" rel="nofollow" title="Edited with XMLMind XML Editor"><span>Edited with XMLMind XML Editor</span></a></div></div><div class="footer-bottom"> <p class="last-generated">
+Last generated:
+<time itemprop="dateModified" datetime="2017-03-13T10:55:28Z" title="Monday, March 13, 2017 10:55:28 AM GMT">2017-03-13 10:55:28 GMT</time>, for Freemarker 2.3.26 </p>
+<p class="copyright">
+� <span itemprop="copyrightYear">1999</span>\u20132017
+<a itemtype="http://schema.org/Organization" itemprop="copyrightHolder" href="http://apache.org/">The Apache Software Foundation</a>. Apache FreeMarker, FreeMarker, Apache Incubator, Apache, the Apache FreeMarker logo are trademarks of The Apache Software Foundation. </p>
+</div></div></div></body>
+</html>
http://git-wip-us.apache.org/repos/asf/incubator-freemarker-site/blob/52c070a9/builds/2.3.26-nightly/pgui_config_settings.html
----------------------------------------------------------------------
diff --git a/builds/2.3.26-nightly/pgui_config_settings.html b/builds/2.3.26-nightly/pgui_config_settings.html
new file mode 100644
index 0000000..322f062
--- /dev/null
+++ b/builds/2.3.26-nightly/pgui_config_settings.html
@@ -0,0 +1,378 @@
+<!doctype html>
+<!-- Generated by FreeMarker/Docgen from DocBook -->
+<html lang="en" class="page-type-section">
+<head prefix="og: http://ogp.me/ns#">
+<meta charset="utf-8">
+<title>Settings - Apache FreeMarker Manual</title>
+<meta http-equiv="X-UA-Compatible" content="IE=edge">
+<meta name="viewport" content="width=device-width,initial-scale=1">
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+<body itemscope itemtype="https://schema.org/Code">
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+
+ <!--[if lte IE 9]>
+ <div style="background-color: #C00; color: #fff; padding: 12px 24px;">Please use a modern browser to view this website.</div>
+ <![endif]--><div class="header-top-bg"><div class="site-width header-top"><a class="logo" href="http://freemarker.org" role="banner"> <img itemprop="image" src="logo.png" alt="FreeMarker">
+</a><ul class="tabs"><li><a href="http://freemarker.org/">Home</a></li><li class="current"><a href="index.html">Manual</a></li><li><a class="external" href="api/index.html">Java API</a></li></ul><ul class="secondary-tabs"><li><a class="tab icon-heart" href="http://freemarker.org/contribute.html" title="Contribute"><span>Contribute</span></a></li><li><a class="tab icon-bug" href="https://issues.apache.org/jira/browse/FREEMARKER/" title="Report a Bug"><span>Report a Bug</span></a></li><li><a class="tab icon-download" href="http://freemarker.org/freemarkerdownload.html" title="Download"><span>Download</span></a></li></ul></div></div><div class="header-bottom-bg"><div class="site-width search-row"><a href="index.html" class="navigation-header">Manual</a><div class="navigation-header"></div><form method="get" class="search-form" action="search-results.html"><fieldset><legend class="sr-only">Search form</legend><label for="search-field" class="sr-only">Search query</label><input id="searc
h-field" name="q" type="search" class="search-input" placeholder="Search" spellcheck="false" autocorrect="off" autocomplete="off"><button type="submit" class="search-btn"><span class="sr-only">Search</span></button></fieldset></form></div><div class="site-width breadcrumb-row"><ul class="breadcrumb" itemscope itemtype="http://schema.org/BreadcrumbList"><li class="step-0" itemprop="itemListElement" itemscope itemtype="http://schema.org/ListItem"><a class="label" itemprop="item" href="index.html"><span itemprop="name">Apache FreeMarker Manual</span></a></li><li class="step-1" itemprop="itemListElement" itemscope itemtype="http://schema.org/ListItem"><a class="label" itemprop="item" href="pgui.html"><span itemprop="name">Programmer's Guide</span></a></li><li class="step-2" itemprop="itemListElement" itemscope itemtype="http://schema.org/ListItem"><a class="label" itemprop="item" href="pgui_config.html"><span itemprop="name">The Configuration</span></a></li><li class="step-3" itempr
op="itemListElement" itemscope itemtype="http://schema.org/ListItem"><a class="label" itemprop="item" href="pgui_config_settings.html"><span itemprop="name">Settings</span></a></li></ul><div class="bookmarks" title="Bookmarks"><span class="sr-only">Bookmarks:</span><ul class="bookmark-list"><li><a href="alphaidx.html">Alpha. index</a></li><li><a href="gloss.html">Glossary</a></li><li><a href="dgui_template_exp.html#exp_cheatsheet">Expressions</a></li><li><a href="ref_builtins_alphaidx.html">?builtins</a></li><li><a href="ref_directive_alphaidx.html">#directives</a></li><li><a href="ref_specvar.html">.spec_vars</a></li><li><a href="app_faq.html">FAQ</a></li></ul></div></div></div> <div class="main-content site-width">
+ <div class="content-wrapper">
+ <div id="table-of-contents-wrapper" class="col-left">
+ <script>var breadcrumb = ["Apache FreeMarker Manual","Programmer\'s Guide","The Configuration","Settings"];</script>
+ <script src="toc.js?1489402528979"></script>
+ <script src="docgen-resources/main.min.js?1489402528979"></script>
+ </div>
+<div class="col-right"><div class="page-content"><div class="page-title"><div class="pagers top"><a class="paging-arrow previous" href="pgui_config_sharedvariables.html"><span>Previous</span></a><a class="paging-arrow next" href="pgui_config_templateloading.html"><span>Next</span></a></div><div class="title-wrapper">
+<h1 class="content-header header-section1" id="pgui_config_settings" itemprop="headline">Settings</h1>
+</div></div><p><strong>Settings</strong> are named values that
+ influence the behavior of FreeMarker. Examples of settings are:
+ <code class="inline-code">locale</code>, <code class="inline-code">number_format</code>,
+ <code class="inline-code">default_encoding</code>,
+ <code class="inline-code">template_exception_handler</code>. The full list of
+ settings can be found in the <a href="http://freemarker.org/docs/api/freemarker/template/Configuration.html#setSetting-java.lang.String-java.lang.String-">Java
+ API documentation of
+ <code>Configuration.setSetting(...)</code></a>.</p><p>The settings coming from the <code class="inline-code">Configuration</code>
+ can be overridden in a <code class="inline-code">Template</code> instance. For
+ example, if you set the <code class="inline-code">locale</code> setting to
+ <code class="inline-code">"en_US"</code> in the configuration, then the
+ <code class="inline-code">locale</code> in all templates that use this configuration
+ will be <code class="inline-code">"en_US"</code>, except in templates where the
+ <code class="inline-code">locale</code> was explicitly specified differently (see
+ <a href="ref_directive_include.html#ref_directive_include_localized">localization</a>).
+ Thus, the setting values in the <code class="inline-code">Configuration</code> serve
+ as defaults that can be overridden in a per template manner. The value
+ coming from the <code class="inline-code">Configuration</code> instance or
+ <code class="inline-code">Template</code> instance can be further overridden for a
+ single <code class="inline-code">Template.process</code> call. For each such call a
+ <code class="inline-code">freemarker.core.Environment</code> object is created
+ internally that holds the runtime environment of the template
+ processing, including the setting values that were overridden on that
+ level. The values stored there can even be changed during the template
+ processing, so a template can set settings itself, like switching
+ <code class="inline-code">locale</code> at the middle of the ongoing
+ processing.</p><p>This can be imagined as 3 layers
+ (<code class="inline-code">Configuration</code>, <code class="inline-code">Template</code>,
+ <code class="inline-code">Environment</code>) of settings, where the topmost layer
+ that contains the value for a certain setting provides the effective
+ value of that setting. For example (settings A to F are just imaginary
+ settings for this example):</p> <div class="table-responsive">
+ <table class="table">
+
+
+
+
+
+ <thead>
+ <tr>
+ <th align="left"></th>
+
+
+ <th align="center">Setting A</th>
+
+
+ <th align="center">Setting B</th>
+
+
+ <th align="center">Setting C</th>
+
+
+ <th align="center">Setting D</th>
+
+
+ <th align="center">Setting E</th>
+
+
+ <th align="center">Setting F</th>
+
+ </tr>
+
+ </thead>
+
+
+ <tbody>
+ <tr>
+ <td align="left">Layer 3: <code class="inline-code">Environment</code></td>
+
+
+ <td align="center">1</td>
+
+
+ <td align="center">-</td>
+
+
+ <td align="center">-</td>
+
+
+ <td align="center">1</td>
+
+
+ <td align="center">-</td>
+
+
+ <td align="center">-</td>
+
+ </tr>
+
+
+ <tr>
+ <td align="left">Layer 2: <code class="inline-code">Template</code></td>
+
+
+ <td align="center">2</td>
+
+
+ <td align="center">2</td>
+
+
+ <td align="center">-</td>
+
+
+ <td align="center">-</td>
+
+
+ <td align="center">2</td>
+
+
+ <td align="center">-</td>
+
+ </tr>
+
+
+ <tr>
+ <td align="left">Layer 1: <code class="inline-code">Configuration</code></td>
+
+
+ <td align="center">3</td>
+
+
+ <td align="center">3</td>
+
+
+ <td align="center">3</td>
+
+
+ <td align="center">3</td>
+
+
+ <td align="center">-</td>
+
+
+ <td align="center">-</td>
+
+ </tr>
+
+ </tbody>
+
+ </table>
+ </div>
+<p>The effective value of settings will be: A = 1, B = 2, C = 3, D
+ = 1, E = 2. The F setting is probably <code class="inline-code">null</code>, or it
+ throws exception when you try to get it.</p><p>Let's see exactly how to set settings:</p><ul>
+ <li>
+ <p><code class="inline-code">Configuration</code> layer: In principle you set
+ the settings with the setter methods of the
+ <code class="inline-code">Configuration</code> object, fore example:</p>
+
+
+
+<div class="code-wrapper"><pre class="code-block code-unspecified">Configuration myCfg = new Configuration(Configuration.VERSION_2_3_25);
+myCfg.setTemplateExceptionHandler(TemplateExceptionHandler.RETHROW_HANDLER);
+myCfg.setDefaultEncoding("UTF-8");
+DefaultObjectWrapperBuilder owb = new DefaultObjectWrapperBuilder(Configuration.VERSION_2_3_25);
+owb.setForceLegacyNonListCollections(false);
+owb.setDefaultDateType(TemplateDateModel.DATETIME);
+myCfg.setObjectWrapper(owb.build());</pre></div>
+
+ <p>You do this before you start to actually use the
+ <code class="inline-code">Configuration</code> object (typically, when you
+ initialize the application); you should treat the object as
+ read-only after that.</p>
+
+ <p>In practice, in most frameworks you have to specify the
+ settings in some kind of framework-specific configuration file
+ that require specifying settings as <code class="inline-code">String</code>
+ name-value pairs (like in a <code class="inline-code">.properties</code> file).
+ In that case the authors of the frameworks most probably use the
+ <code class="inline-code">Confguration.setSetting(String name, String
+ value)</code> method; see available setting names and the
+ format of the values in the <a href="http://freemarker.org/docs/api/freemarker/template/Configuration.html#setSetting-java.lang.String-java.lang.String-">API
+ documentation of <code>setSetting</code></a>. Example for
+ Spring Framework:</p>
+
+
+
+<div class="code-wrapper"><pre class="code-block code-unspecified"><bean id="freemarkerConfig"
+ class="org.springframework.web.servlet.view.freemarker.FreeMarkerConfigurer">
+ <property name="freemarkerSettings">
+ <props>
+ <prop key="incompatible_improvements">2.3.25</prop>
+ <prop key="template_exception_handler">rethrow</prop>
+ <prop key="default_encoding">UTF-8</prop>
+ <prop key="object_wrapper">
+ DefaultObjectWrapper(
+ 2.3.25,
+ forceLegacyNonListCollections = false,
+ defaultDateType = freemarker.template.TemplateDateModel.DATETIME)
+ </prop>
+ </props>
+ </property>
+</bean></pre></div>
+
+ <p>Here's the same when configuring FreeMarker for Struts,
+ which looks for a <code class="inline-code">freemarker.properties</code> in the
+ classpath:</p>
+
+
+
+<div class="code-wrapper"><pre class="code-block code-unspecified">incompatible_improvements=2.3.25
+template_exception_handler=rethrow
+default_encoding=UTF-8
+object_wrapper=DefaultObjectWrapper( \
+ 2.3.25, \
+ forceLegacyNonListCollections = false, \
+ defaultDateType = freemarker.template.TemplateDateModel.DATETIME)</pre></div>
+
+ <p>As demonstrated above with
+ <code class="inline-code">object_wrapper</code>, some settings can accept quite
+ complex values, which can be used to instantiate objects of
+ arbitrary classes and set their properties. Still, configuring
+ with <code class="inline-code">String</code> key-value pairs is limited compared
+ to directly using the Java API, so in some cases you have to find
+ a way to do this in Java.</p>
+ </li>
+
+ <li>
+ <p><code class="inline-code">Template</code> layer: Settings on individual
+ templates are normally set by <a href="pgui_config_templateconfigurations.html">template
+ configurations (see them in their own chapter)</a>, which
+ basically associate setting assignments to template name (template
+ path) patterns. There's a deviation from this approach with the
+ <code class="inline-code">locale</code> setting, because that you can also
+ specify to <code class="inline-code">Configuration.getTemplate(...)</code> as
+ parameter, to get the template for the requested locale (so called
+ localized lookup).</p>
+
+ <div class="callout warning">
+ <strong class="callout-label">Warning!</strong>
+
+ <p>You should never set settings directly on the
+ <code class="inline-code">Template</code> object that you get from
+ <code class="inline-code">Configuration.getTemplate(...)</code>! Those objects
+ should be treated as already initialized and read-only.</p>
+ </div>
+
+
+ <p>When a template includes or imports another template, most
+ of the settings (like <code class="inline-code">locale</code>,
+ <code class="inline-code">number_format</code>, etc.) will remain those
+ specified by the top-level template. The exceptions are the
+ settings that affect the parsing of the template (like
+ <code class="inline-code">tag_syntax</code>,
+ <code class="inline-code">whitespace_stripping</code>, etc.), as these are not
+ inherited from the top-level template, instead each template
+ always uses its own values, no mater how it was invoked.</p>
+
+ <div class="callout note">
+ <strong class="callout-label">Note:</strong>
+
+ <p>If you are going to use template layer settings, you
+ should set <a href="pgui_config_incompatible_improvements.html">the
+ <code>incompatible_improvements</code> setting</a> to
+ 2.3.22 or higher, to avoid some confusing legacy bugs.</p>
+ </div>
+
+ </li>
+
+ <li>
+ <p><code class="inline-code">Environment </code>layer: There are two ways of
+ doing it:</p>
+
+ <ul>
+ <li>
+ <p>With Java API: Use the setter methods of the
+ <code class="inline-code">Environment</code> object. You may run into the
+ API problem that <code class="inline-code">myTemplate.process(...)</code>
+ both creates the <code class="inline-code">Environment</code> object
+ internally and processes the template, so you have no
+ opportunity to adjust the <code class="inline-code">Environment</code> in
+ between. The solution is that those two steps can be separated
+ like this:</p>
+
+
+
+<div class="code-wrapper"><pre class="code-block code-unspecified">Environment env = myTemplate.createProcessingEnvironment(root, out);
+env.setLocale(java.util.Locale.ITALY);
+env.setNumberFormat("0.####");
+env.process(); // process the template</pre></div>
+ </li>
+
+ <li>
+ <p>Directly in the Template (considered as bad style,
+ usually): Use the <a href="ref_directive_setting.html#ref.directive.setting"><code>setting</code>
+ directive</a>, for example:</p>
+
+
+
+<div class="code-wrapper"><pre class="code-block code-template"><#setting locale="it_IT">
+<#setting number_format="0.####"></pre></div>
+ </li>
+ </ul>
+
+ <p>There are no restriction regarding when can you change the
+ settings in this layer.</p>
+ </li>
+ </ul><p>To see the list of supported settings and their meaning, please
+ read the following parts of the FreeMarker Java API
+ documentation:</p><ul>
+ <li>
+ <p>Setter methods of
+ <code class="inline-code">freemarker.core.Configurable</code> for the settings
+ that are in all three layers</p>
+ </li>
+
+ <li>
+ <p>Setter methods of
+ <code class="inline-code">freemarker.template.Configuration</code> for the
+ settings that are available only in the
+ <code class="inline-code">Configuration</code> layer</p>
+ </li>
+
+ <li>
+ <p><code class="inline-code">freemarker.core.Configurable.setSetting(String,
+ String)</code> for settings that are available in all three
+ layers and are writable with <code class="inline-code">String</code> key-value
+ pairs.</p>
+ </li>
+
+ <li>
+ <p><code class="inline-code">freemarker.template.Configuration.setSetting(String,
+ String)</code> for settings that are available only in the
+ <code class="inline-code">Configuration</code> layer and are writable with
+ <code class="inline-code">String</code> key-value pairs.</p>
+ </li>
+ </ul><div class="bottom-pagers-wrapper"><div class="pagers bottom"><a class="paging-arrow previous" href="pgui_config_sharedvariables.html"><span>Previous</span></a><a class="paging-arrow next" href="pgui_config_templateloading.html"><span>Next</span></a></div></div></div></div> </div>
+ </div>
+<div class="site-footer"><div class="site-width"><div class="footer-top"><div class="col-left sitemap"><div class="column"><h3 class="column-header">Overview</h3><ul><li><a href="http://freemarker.org/">What is FreeMarker?</a></li><li><a href="http://freemarker.org/freemarkerdownload.html">Download</a></li><li><a href="app_versions.html">Version history</a></li><li><a href="http://freemarker.org/history.html">About us</a></li><li><a itemprop="license" href="app_license.html">License</a></li></ul></div><div class="column"><h3 class="column-header">Handy stuff</h3><ul><li><a href="http://freemarker-online.kenshoo.com/">Try template online</a></li><li><a href="dgui_template_exp.html#exp_cheatsheet">Expressions cheatsheet</a></li><li><a href="ref_directive_alphaidx.html">#directives</a></li><li><a href="ref_builtins_alphaidx.html">?built_ins</a></li><li><a href="ref_specvar.html">.special_vars</a></li></ul></div><div class="column"><h3 class="column-header">Community</h3><ul><li><a href
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