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Posted to cvs@cocoon.apache.org by cr...@apache.org on 2005/11/18 05:13:22 UTC

svn commit: r345438 [65/286] - in /cocoon/site/site/2.1: ./ developing/ developing/portal/ developing/portal/coplets/ developing/webapps/ developing/webapps/authentication/ faq/ howto/ installing/ plan/ plan/documentation/ plan/otherplanning/ plan/over...

Added: cocoon/site/site/2.1/howto/howto-flow-debugger.html
URL: http://svn.apache.org/viewcvs/cocoon/site/site/2.1/howto/howto-flow-debugger.html?rev=345438&view=auto
==============================================================================
--- cocoon/site/site/2.1/howto/howto-flow-debugger.html (added)
+++ cocoon/site/site/2.1/howto/howto-flow-debugger.html Thu Nov 17 20:00:02 2005
@@ -0,0 +1,1412 @@
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+<a href="../../2.1/userdocs/default/wildcarduri-matcher.html">WildCard URI Matcher</a>
+</div>
+</div>
+<div onclick="SwitchMenu('menu_1.2.5.3.4.3', '../../skin/')" id="menu_1.2.5.3.4.3Title" class="menutitle">Core</div>
+<div id="menu_1.2.5.3.4.3" class="menuitemgroup">
+<div class="menuitem">
+<a href="../../2.1/userdocs/core/wildcarduri-matcher.html">WildCard URI Matcher</a>
+</div>
+<div class="menuitem">
+<a href="../../2.1/userdocs/core/wildcardheader-matcher.html">WildCard Header Matcher</a>
+</div>
+</div>
+<div onclick="SwitchMenu('menu_1.2.5.3.4.4', '../../skin/')" id="menu_1.2.5.3.4.4Title" class="menutitle">Optional</div>
+<div id="menu_1.2.5.3.4.4" class="menuitemgroup">
+<div class="menuitem">
+<a href="../../2.1/userdocs/optional/template-matcher.html">Template Matcher</a>
+</div>
+</div>
+</div>
+<div onclick="SwitchMenu('menu_1.2.5.3.5', '../../skin/')" id="menu_1.2.5.3.5Title" class="menutitle">Selectors</div>
+<div id="menu_1.2.5.3.5" class="menuitemgroup">
+<div class="menuitem">
+<a href="../../2.1/userdocs/selectors.html">Overview</a>
+</div>
+<div onclick="SwitchMenu('menu_1.2.5.3.5.2', '../../skin/')" id="menu_1.2.5.3.5.2Title" class="menutitle">Default</div>
+<div id="menu_1.2.5.3.5.2" class="menuitemgroup">
+<div class="menuitem">
+<a href="../../2.1/userdocs/default/browser-selector.html">Browser Selector</a>
+</div>
+</div>
+<div onclick="SwitchMenu('menu_1.2.5.3.5.3', '../../skin/')" id="menu_1.2.5.3.5.3Title" class="menutitle">Core</div>
+<div id="menu_1.2.5.3.5.3" class="menuitemgroup">
+<div class="menuitem">
+<a href="../../2.1/userdocs/browser-selector.html">Browser Selector</a>
+</div>
+<div class="menuitem">
+<a href="../../2.1/userdocs/host-selector.html">Host Selector</a>
+</div>
+<div class="menuitem">
+<a href="../../2.1/userdocs/parameter-selector.html">Parameter Selector</a>
+</div>
+<div class="menuitem">
+<a href="../../2.1/userdocs/requestattribute-selector.html">Request Attribute Selector</a>
+</div>
+<div class="menuitem">
+<a href="../../2.1/userdocs/requestmethod-selector.html">Request Method Selector</a>
+</div>
+<div class="menuitem">
+<a href="../../2.1/userdocs/requestparameter-selector.html">Request Parameter Selector</a>
+</div>
+<div class="menuitem">
+<a href="../../2.1/userdocs/resourceexists-selector.html">Resource Exists Selector</a>
+</div>
+<div class="menuitem">
+<a href="../../2.1/userdocs/regular-expression-header-selector.html">Regular-expression Header Selector</a>
+</div>
+</div>
+<div onclick="SwitchMenu('menu_1.2.5.3.5.4', '../../skin/')" id="menu_1.2.5.3.5.4Title" class="menutitle">Scratchpad</div>
+<div id="menu_1.2.5.3.5.4" class="menuitemgroup">
+<div class="menuitem">
+<a href="../../2.1/userdocs/scratchpad/date-selector.html">Date Selector</a>
+</div>
+</div>
+</div>
+<div onclick="SwitchMenu('menu_1.2.5.3.6', '../../skin/')" id="menu_1.2.5.3.6Title" class="menutitle">Actions</div>
+<div id="menu_1.2.5.3.6" class="menuitemgroup">
+<div class="menuitem">
+<a href="../../2.1/userdocs/actions.html">Overview</a>
+</div>
+<div class="menuitem">
+<a href="../../2.1/userdocs/database-actions.html">Database</a>
+</div>
+<div onclick="SwitchMenu('menu_1.2.5.3.6.3', '../../skin/')" id="menu_1.2.5.3.6.3Title" class="menutitle">Optional</div>
+<div id="menu_1.2.5.3.6.3" class="menuitemgroup">
+<div class="menuitem">
+<a href="../../2.1/userdocs/optional/sendmail-action.html">Sendmail Action</a>
+</div>
+<div class="menuitem">
+<a href="../../2.1/userdocs/optional/session-action.html">Session Action</a>
+</div>
+<div class="menuitem">
+<a href="../../2.1/userdocs/optional/script-action.html">Script Action</a>
+</div>
+</div>
+</div>
+<div onclick="SwitchMenu('menu_1.2.5.3.7', '../../skin/')" id="menu_1.2.5.3.7Title" class="menutitle">Readers</div>
+<div id="menu_1.2.5.3.7" class="menuitemgroup">
+<div class="menuitem">
+<a href="../../2.1/userdocs/readers.html">Overview</a>
+</div>
+<div onclick="SwitchMenu('menu_1.2.5.3.7.2', '../../skin/')" id="menu_1.2.5.3.7.2Title" class="menutitle">Default</div>
+<div id="menu_1.2.5.3.7.2" class="menuitemgroup">
+<div class="menuitem">
+<a href="../../2.1/userdocs/default/resource-reader.html">Resource Reader</a>
+</div>
+</div>
+<div onclick="SwitchMenu('menu_1.2.5.3.7.3', '../../skin/')" id="menu_1.2.5.3.7.3Title" class="menutitle">Core</div>
+<div id="menu_1.2.5.3.7.3" class="menuitemgroup">
+<div class="menuitem">
+<a href="../../2.1/userdocs/core/image-reader.html">Image Reader</a>
+</div>
+<div class="menuitem">
+<a href="../../2.1/userdocs/core/resource-reader.html">Resource Reader</a>
+</div>
+</div>
+<div onclick="SwitchMenu('menu_1.2.5.3.7.4', '../../skin/')" id="menu_1.2.5.3.7.4Title" class="menutitle">Optional</div>
+<div id="menu_1.2.5.3.7.4" class="menuitemgroup">
+<div class="menuitem">
+<a href="../../2.1/userdocs/optional/axisrpc-reader.html">AxisRPC Reader</a>
+</div>
+<div class="menuitem">
+<a href="../../2.1/userdocs/optional/database-reader.html">Database Reader</a>
+</div>
+<div class="menuitem">
+<a href="../../2.1/userdocs/optional/jsp-reader.html">JSP Reader</a>
+</div>
+</div>
+<div onclick="SwitchMenu('menu_1.2.5.3.7.5', '../../skin/')" id="menu_1.2.5.3.7.5Title" class="menutitle">Scratchpad</div>
+<div id="menu_1.2.5.3.7.5" class="menuitemgroup">
+<div class="menuitem">
+<a href="../../2.1/userdocs/scratchpad/directoryziparchiver-reader.html">Directory ZIP Archiver</a>
+</div>
+</div>
+</div>
+</div>
+<div onclick="SwitchMenu('menu_1.2.5.4', '../../skin/')" id="menu_1.2.5.4Title" class="menutitle">Flow</div>
+<div id="menu_1.2.5.4" class="menuitemgroup">
+<div class="menuitem">
+<a href="../../2.1/userdocs/flow/index.html">Introduction</a>
+</div>
+<div class="menuitem">
+<a href="../../2.1/userdocs/flow/continuations.html">Continuations</a>
+</div>
+<div class="menuitem">
+<a href="../../2.1/userdocs/flow/how-does-it-work.html">How does it work?</a>
+</div>
+<div class="menuitem">
+<a href="../../2.1/userdocs/flow/using.html">Usage</a>
+</div>
+<div class="menuitem">
+<a href="../../2.1/userdocs/flow/tutor.html">Tutorial</a>
+</div>
+<div class="menuitem">
+<a href="../../2.1/userdocs/flow/sitemap.html">Sitemap</a>
+</div>
+<div class="menuitem">
+<a href="../../2.1/userdocs/flow/api.html">Flowscript</a>
+</div>
+<div class="menuitem">
+<a href="../../2.1/userdocs/flow/java.html">Calling Java</a>
+</div>
+<div class="menuitem">
+<a href="../../2.1/userdocs/flow/views.html">Views</a>
+</div>
+<div class="menuitem">
+<a href="../../2.1/userdocs/flow/jxtemplate.html">JXTemplate</a>
+</div>
+<div class="menuitem">
+<a href="../../2.1/userdocs/flow/jpath.html">JPath</a>
+</div>
+<div class="menuitem">
+<a href="../../2.1/userdocs/flow/velocity.html">Velocity</a>
+</div>
+</div>
+<div onclick="SwitchMenu('menu_1.2.5.5', '../../skin/')" id="menu_1.2.5.5Title" class="menutitle">Cocoon Forms</div>
+<div id="menu_1.2.5.5" class="menuitemgroup">
+<div onclick="SwitchMenu('menu_1.2.5.5.1', '../../skin/')" id="menu_1.2.5.5.1Title" class="menutitle">Basics</div>
+<div id="menu_1.2.5.5.1" class="menuitemgroup">
+<div class="menuitem">
+<a href="../../2.1/userdocs/basics/index.html">Introduction</a>
+</div>
+<div class="menuitem">
+<a href="../../2.1/userdocs/basics/sample.html">Sample</a>
+</div>
+<div class="menuitem">
+<a href="../../2.1/userdocs/basics/improving_sample.html">Improving the sample</a>
+</div>
+</div>
+<div onclick="SwitchMenu('menu_1.2.5.5.2', '../../skin/')" id="menu_1.2.5.5.2Title" class="menutitle">Widgets</div>
+<div id="menu_1.2.5.5.2" class="menuitemgroup">
+<div class="menuitem">
+<a href="../../2.1/userdocs/widgets/widget_form.html">form</a>
+</div>
+<div class="menuitem">
+<a href="../../2.1/userdocs/widgets/widget_field.html">field</a>
+</div>
+<div class="menuitem">
+<a href="../../2.1/userdocs/widgets/widget_multivaluefield.html">multivaluefield</a>
+</div>
+<div class="menuitem">
+<a href="../../2.1/userdocs/widgets/widget_booleanfield.html">booleanfield</a>
+</div>
+<div class="menuitem">
+<a href="../../2.1/userdocs/widgets/widget_repeater.html">repeater</a>
+</div>
+<div class="menuitem">
+<a href="../../2.1/userdocs/widgets/widget_output.html">output</a>
+</div>
+<div class="menuitem">
+<a href="../../2.1/userdocs/widgets/widget_submit.html">submit</a>
+</div>
+<div class="menuitem">
+<a href="../../2.1/userdocs/widgets/widget_action.html">action</a>
+</div>
+<div class="menuitem">
+<a href="../../2.1/userdocs/widgets/widget_repeater_action.html">repeater-action</a>
+</div>
+<div class="menuitem">
+<a href="../../2.1/userdocs/widgets/widget_row_action.html">row-action</a>
+</div>
+<div class="menuitem">
+<a href="../../2.1/userdocs/widgets/widget_aggregatefield.html">aggregatefield</a>
+</div>
+<div class="menuitem">
+<a href="../../2.1/userdocs/widgets/widget_upload.html">upload</a>
+</div>
+<div class="menuitem">
+<a href="../../2.1/userdocs/widgets/widget_messages.html">messages</a>
+</div>
+<div class="menuitem">
+<a href="../../2.1/userdocs/widgets/widget_imagemap.html">imagemap</a>
+</div>
+<div class="menuitem">
+<a href="../../2.1/userdocs/widgets/widget_tree.html">tree</a>
+</div>
+<div class="menuitem">
+<a href="../../2.1/userdocs/widgets/widget_group.html">group/struct</a>
+</div>
+<div class="menuitem">
+<a href="../../2.1/userdocs/widgets/widget_union.html">union</a>
+</div>
+<div class="menuitem">
+<a href="../../2.1/userdocs/widgets/widget_class.html">class/new</a>
+</div>
+</div>
+<div onclick="SwitchMenu('menu_1.2.5.5.3', '../../skin/')" id="menu_1.2.5.5.3Title" class="menutitle">Widget Concepts</div>
+<div id="menu_1.2.5.5.3" class="menuitemgroup">
+<div class="menuitem">
+<a href="../../2.1/userdocs/widgetconcepts/validation.html">Validation</a>
+</div>
+<div class="menuitem">
+<a href="../../2.1/userdocs/widgetconcepts/eventhandling.html">Event Handling</a>
+</div>
+<div class="menuitem">
+<a href="../../2.1/userdocs/widgetconcepts/datatypes.html">Datatypes</a>
+</div>
+<div class="menuitem">
+<a href="../../2.1/userdocs/widgetconcepts/selectionlists.html">Selection lists</a>
+</div>
+<div class="menuitem">
+<a href="../../2.1/userdocs/widgetconcepts/widgetstates.html">Widget states</a>
+</div>
+</div>
+<div onclick="SwitchMenu('menu_1.2.5.5.4', '../../skin/')" id="menu_1.2.5.5.4Title" class="menutitle">Form Publishing</div>
+<div id="menu_1.2.5.5.4" class="menuitemgroup">
+<div onclick="SwitchMenu('menu_1.2.5.5.4.1', '../../skin/')" id="menu_1.2.5.5.4.1Title" class="menutitle">Templating</div>
+<div id="menu_1.2.5.5.4.1" class="menuitemgroup">
+<div class="menuitem">
+<a href="../../2.1/userdocs/publishing/templating.html">Section Home</a>
+</div>
+<div class="menuitem">
+<a href="../../2.1/userdocs/publishing/templating/templategenerator.html">Template Generator</a>
+</div>
+<div class="menuitem">
+<a href="../../2.1/userdocs/publishing/templating/templatetransformer.html">Template Transformer</a>
+</div>
+</div>
+<div class="menuitem">
+<a href="../../2.1/userdocs/publishing/formsgenerator.html">Generator</a>
+</div>
+<div class="menuitem">
+<a href="../../2.1/userdocs/publishing/xslt.html">XSLT</a>
+</div>
+</div>
+<div class="menuitem">
+<a href="../../2.1/userdocs/binding.html">Binding Framework</a>
+</div>
+<div class="menuitem">
+<a href="../../2.1/userdocs/xmlbinding.html">Simple XML Binding</a>
+</div>
+<div onclick="SwitchMenu('menu_1.2.5.5.7', '../../skin/')" id="menu_1.2.5.5.7Title" class="menutitle">API</div>
+<div id="menu_1.2.5.5.7" class="menuitemgroup">
+<div class="menuitem">
+<a href="../../2.1/userdocs/api/api_javascript.html">Javascript (Flowscript)</a>
+</div>
+<div class="menuitem">
+<a href="../../2.1/userdocs/api/api_java.html">Java</a>
+</div>
+</div>
+<div class="menuitem">
+<a href="../../2.1/userdocs/formlibraries.html">Form libraries</a>
+</div>
+<div class="menuitem">
+<a href="../../2.1/userdocs/ajax.html">Ajax</a>
+</div>
+<div class="menuitem">
+<a href="http://wiki.apache.org/cocoon/Forms">Forms @ Wiki</a>
+</div>
+</div>
+<div onclick="SwitchMenu('menu_1.2.5.6', '../../skin/')" id="menu_1.2.5.6Title" class="menutitle">XSP</div>
+<div id="menu_1.2.5.6" class="menuitemgroup">
+<div class="menuitem">
+<a href="../../2.1/userdocs/index.html">Overview</a>
+</div>
+<div onclick="SwitchMenu('menu_1.2.5.6.2', '../../skin/')" id="menu_1.2.5.6.2Title" class="menutitle">XSP</div>
+<div id="menu_1.2.5.6.2" class="menuitemgroup">
+<div class="menuitem">
+<a href="../../2.1/userdocs/xsp.html">Section Home</a>
+</div>
+<div class="menuitem">
+<a href="../../2.1/userdocs/xsp/logicsheet.html">XSP Guide</a>
+</div>
+<div class="menuitem">
+<a href="../../2.1/userdocs/xsp/xsp-internals.html">XSP Internals</a>
+</div>
+<div class="menuitem">
+<a href="../../2.1/userdocs/xsp/logicsheet-concepts.html">XSP Logicsheets</a>
+</div>
+<div class="menuitem">
+<a href="../../2.1/userdocs/xsp/sessions.html">Sessions</a>
+</div>
+</div>
+<div onclick="SwitchMenu('menu_1.2.5.6.3', '../../skin/')" id="menu_1.2.5.6.3Title" class="menutitle">Logicsheets</div>
+<div id="menu_1.2.5.6.3" class="menuitemgroup">
+<div class="menuitem">
+<a href="../../2.1/userdocs/logicsheets/request.html">Request</a>
+</div>
+<div class="menuitem">
+<a href="../../2.1/userdocs/logicsheets/session.html">Session</a>
+</div>
+<div class="menuitem">
+<a href="../../2.1/userdocs/logicsheets/esql.html">ESQL</a>
+</div>
+<div class="menuitem">
+<a href="../../2.1/userdocs/logicsheets/logicsheet-forms.html">Forms</a>
+</div>
+<div class="menuitem">
+<a href="../../2.1/userdocs/logicsheets/sendmail.html">Sendmail</a>
+</div>
+</div>
+</div>
+<div onclick="SwitchMenu('menu_1.2.5.7', '../../skin/')" id="menu_1.2.5.7Title" class="menutitle">Offline</div>
+<div id="menu_1.2.5.7" class="menuitemgroup">
+<div class="menuitem">
+<a href="../../2.1/userdocs/offline/index.html">Overview</a>
+</div>
+<div class="menuitem">
+<a href="../../2.1/userdocs/offline/cli.html">Command Line</a>
+</div>
+<div class="menuitem">
+<a href="../../2.1/userdocs/offline/configuration.html">CLI Configuration</a>
+</div>
+<div class="menuitem">
+<a href="../../2.1/userdocs/offline/ant.html">Ant</a>
+</div>
+<div class="menuitem">
+<a href="../../2.1/userdocs/offline/bean.html">Cocoon Bean</a>
+</div>
+</div>
+</div>
+<div onclick="SwitchMenu('menu_1.2.6', '../../skin/')" id="menu_1.2.6Title" class="menutitle">Developer's Guide</div>
+<div id="menu_1.2.6" class="menuitemgroup">
+<div class="menuitem">
+<a href="../../2.1/developing/index.html">Index</a>
+</div>
+<div onclick="SwitchMenu('menu_1.2.6.2', '../../skin/')" id="menu_1.2.6.2Title" class="menutitle">Concepts</div>
+<div id="menu_1.2.6.2" class="menuitemgroup">
+<div class="menuitem">
+<a href="../../2.1/developing/httprequest.html">Internals</a>
+</div>
+<div class="menuitem">
+<a href="../../2.1/developing/extending.html">Extending</a>
+</div>
+<div class="menuitem">
+<a href="../../2.1/developing/avalon.html">Avalon</a>
+</div>
+<div class="menuitem">
+<a href="../../2.1/developing/source.html">Source Handling</a>
+</div>
+<div class="menuitem">
+<a href="../../2.1/developing/stores.html">Stores</a>
+</div>
+<div class="menuitem">
+<a href="../../2.1/developing/datasources.html">Using Databases</a>
+</div>
+<div class="menuitem">
+<a href="../../2.1/developing/parent-component-manager.html">Parent CM</a>
+</div>
+<div class="menuitem">
+<a href="../../2.1/developing/deliquick.html">DELI Quick Start</a>
+</div>
+<div class="menuitem">
+<a href="../../2.1/developing/deli.html">DELI</a>
+</div>
+</div>
+<div onclick="SwitchMenu('menu_1.2.6.3', '../../skin/')" id="menu_1.2.6.3Title" class="menutitle">Developing Webapps</div>
+<div id="menu_1.2.6.3" class="menuitemgroup">
+<div class="menuitem">
+<a href="../../2.1/developing/webapps/index.html">Overview</a>
+</div>
+<div class="menuitem">
+<a href="../../2.1/developing/webapps/session.html">Sessions</a>
+</div>
+<div class="menuitem">
+<a href="../../2.1/developing/webapps/contexts.html">Session Contexts</a>
+</div>
+<div onclick="SwitchMenu('menu_1.2.6.3.4', '../../skin/')" id="menu_1.2.6.3.4Title" class="menutitle">Authentication</div>
+<div id="menu_1.2.6.3.4" class="menuitemgroup">
+<div class="menuitem">
+<a href="../../2.1/developing/webapps/authentication.html">Section Home</a>
+</div>
+<div class="menuitem">
+<a href="../../2.1/developing/webapps/authentication/authentication-handler.html">The Authentication Handler</a>
+</div>
+<div class="menuitem">
+<a href="../../2.1/developing/webapps/authentication/authenticating_user.html">Authenticating a User</a>
+</div>
+<div class="menuitem">
+<a href="../../2.1/developing/webapps/authentication/user_management.html">User Management</a>
+</div>
+<div class="menuitem">
+<a href="../../2.1/developing/webapps/authentication/application_management.html">Application Management</a>
+</div>
+<div class="menuitem">
+<a href="../../2.1/developing/webapps/authentication/module_management.html">Module Management</a>
+</div>
+<div class="menuitem">
+<a href="../../2.1/developing/webapps/authentication/user_administration.html">User Administration</a>
+</div>
+<div class="menuitem">
+<a href="../../2.1/developing/webapps/authentication/summary.html">Configuration Summary</a>
+</div>
+<div class="menuitem">
+<a href="../../2.1/developing/webapps/authentication/pipeline_patterns.html">Pipeline Patterns</a>
+</div>
+</div>
+<div class="menuitem">
+<a href="../../2.1/developing/webapps/forms.html">Simple Forms</a>
+</div>
+<div class="menuitem">
+<a href="../../2.1/developing/webapps/portal.html">Portal FW</a>
+</div>
+</div>
+<div onclick="SwitchMenu('menu_1.2.6.4', '../../skin/')" id="menu_1.2.6.4Title" class="menutitle">Building a portal using the Portal Engine</div>
+<div id="menu_1.2.6.4" class="menuitemgroup">
+<div class="menuitem">
+<a href="../../2.1/developing/portal/index.html">Index</a>
+</div>
+<div class="menuitem">
+<a href="../../2.1/developing/portal/portal-block.html">Portal Engine</a>
+</div>
+<div onclick="SwitchMenu('menu_1.2.6.4.3', '../../skin/')" id="menu_1.2.6.4.3Title" class="menutitle">Configuring Coplets</div>
+<div id="menu_1.2.6.4.3" class="menuitemgroup">
+<div class="menuitem">
+<a href="../../2.1/developing/portal/coplets.html">Section Home</a>
+</div>
+<div class="menuitem">
+<a href="../../2.1/developing/portal/coplets/uricoplet.html">The URICoplet</a>
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+<h1>How to use the Cocoon Flow Debugger</h1>
+<a name="N10007"></a><a name="Overview"></a>
+<h2 class="h3">Overview</h2>
+<div class="section">
+<p>This how-to describes how to enable and start the flow debugger in Cocoon Web
+Applications that use the JavaScript based flow engine. The flow debugger allows
+you to visually debug flow scripts using breakpoints, tracing, variable watches,
+etc, similar to other common visual debugging environments currently available.
+</p>
+<p>For a full description of how to use the debugger itself, please refer to the
+Mozilla Rhino debugger
+<a class="external" href="http://www.mozilla.org/rhino/debugger.html">page</a>.</p>
+<div class="frame note">
+<div class="label">Note</div>
+<div class="content">Since: 2.1 2002-12-07</div>
+</div>
+</div>
+<a name="N1001B"></a><a name="Purpose"></a>
+<h2 class="h3">Purpose</h2>
+<div class="section">
+<p>The process of writing and debugging flow script can be tedious and
+repetitive. JavaScript is a language that features typed objects but untyped
+references, which means at times it can be difficult to locate programming
+errors until runtime.</p>
+<p>The flow debugger intends to ease the development, debugging and maintenance
+of flow scripts by allowing you to visually inspect and influence your flow
+script, while it's running, without having to resort to many superfluous print
+or log statements.</p>
+</div>
+<a name="N10023"></a><a name="Intended+Audience"></a>
+<h2 class="h3">Intended Audience</h2>
+<div class="section">
+<p>This document is intended for Cocoon web application developers who are using
+the JavaScript flow engine inside of their Cocoon application.</p>
+</div>
+<a name="N10029"></a><a name="Prerequisites"></a>
+<h2 class="h3">Prerequisites</h2>
+<div class="section">
+<p>Until Cocoon 2.1 is released, to use the flow debugger you will need a CVS
+<a class="external" href="http://cvs.apache.org/viewcvs.cgi/cocoon-2.1/">version</a> or
+development <a class="external" href="http://xml.apache.org/from-cvs/cocoon-2.1/">snapshot</a>
+of Cocoon, at least as recent as 7th December 2002.</p>
+<p>You will also need a JavaScript flow based web application, for example the
+flow webapp samples that are currently shipped with Cocoon, and you will need to
+be running Cocoon on a server that has a display attached (either local or
+remote).</p>
+<p>No special files need to be installed to use the debugger, support for the
+debugger is included in the Rhino jar file which is part of Cocoon.</p>
+</div>
+<a name="N1003B"></a><a name="Steps"></a>
+<h2 class="h3">Steps</h2>
+<div class="section">
+<p>The process of enabling and starting the debugger is quite simple.
+Essentially, all you have to is enable support for the debugger in the
+JavaScript interpreter's configuration section of the cocoon.xconf file, and
+start your application. The debugger will be instantiated by the next request
+that invokes <tt>map:call function</tt> or <tt>continuation</tt>.</p>
+<p>Once the debugger is up and running, it should look similar to:</p>
+<p>
+<img alt="" src="412.daisy.img"></p>
+<p>So, let's get started.</p>
+<a name="N1004F"></a><a name="Configuration"></a>
+<h3 class="h4">Configuration</h3>
+<p>By default, the flow debugger is disabled. To enable it, you will need to
+modify the cocoon.xconf file to include one element named
+<strong>debugger</strong>, which contains the value <em>enabled</em>, as
+follows:</p>
+<pre>
+&lt;?xml version="1.0"?&gt;
+
+&lt;flow-interpreters default="JavaScript" logger="flow"&gt;
+	&lt;component-instance name="JavaScript"
+		class="org.apache.cocoon.components.flow.javascript.JavaScriptInterpreter"&gt;
+		  &lt;load-on-startup&gt;resource://org/apache/cocoon/components/flow/javascript/system.js&lt;/load-on-startup&gt;
+		  &lt;reload-scripts&gt;true&lt;/reload-scripts&gt;
+		  &lt;check-time&gt;4000&lt;/check-time&gt;
+		  <strong>&lt;debugger&gt;enabled&lt;/debugger&gt;</strong>  &lt;!-- JavaScript Debugger support --&gt;
+	&lt;/component-instance&gt;
+&lt;/flow-interpreters&gt;
+		</pre>
+<div class="frame note">
+<div class="label">Note</div>
+<div class="content">If you are using the debugger with the Cocoon flow samples, you
+will need to modify the <em>cocoon.xconf</em> file in
+build/cocoon/webapp/WEB-INF, or the <em>flow.xconf</em> file in
+src/java/org/apache/cocoon/components/flow/, which is merged into the
+cocoon.xconf file at build time</div>
+</div>
+<a name="N1006E"></a><a name="Compile+and+start+your+environment"></a>
+<h3 class="h4">Compile and start your environment</h3>
+<p>Compile and start your application as normal.</p>
+<a name="N10074"></a><a name="Start+the+flow+engine"></a>
+<h3 class="h4">Start the flow engine</h3>
+<p>Once your application is running and awaiting requests, attempt to access a
+page that calls a flow function. The invocation will take longer than normal,
+but on your server's display you should see the visual debugger being created
+and populated with your flow script.</p>
+<div class="frame note">
+<div class="label">Note</div>
+<div class="content">Portions of Cocoon's flow script management
+<a class="external" href="http://cvs.apache.org/viewcvs.cgi/cocoon-2.1/src/java/org/apache/cocoon/components/flow/javascript/system.js?rev=HEAD&content-type=text/vnd.viewcvs-markup">code</a>
+will also be viewable in the debugger.</div>
+</div>
+<p>A debugger instance is created per JavaScript interpreter. This means if you
+make another request to a different sitemap for example, a new debugger instance
+will be created alongside the previous one. This allows you to debug flow
+scripts locally to the sitemap they are defined in.</p>
+<a name="N10088"></a><a name="Use+the+debugger"></a>
+<h3 class="h4">Use the debugger</h3>
+<p>At this stage, the debugger is in control. By default, all entry points into
+the debugger result in an automatic breakpoint being set at that entry point
+(ie. at the beginning of each call function and handle continuation invocation).
+To continue processing, press any of the <em>step</em> buttons to trace through
+your code.</p>
+<div class="frame note">
+<div class="label">Note</div>
+<div class="content">Pressing <em>Exit</em> from the <em>File</em> menu will not
+actually exit the debugger or JVM, but will make it invisible. It will be
+automatically made visible again upon entering a new
+call-function/handle-continuation frame.</div>
+</div>
+<p>Using the flow debugger, you will be able to trace through your code at any
+level of detail your require. Continuations are also supported, when a
+<tt>sendPageAndWait()</tt> is invoked, the debugger will become inactive until
+the interpreter is called upon to continue that suspended flow.</p>
+</div>
+<a name="N100A4"></a><a name="Improvements"></a>
+<h2 class="h3">Improvements</h2>
+<div class="section">
+<a name="N100A8"></a><a name="Remote+debugging"></a>
+<h3 class="h4">Remote debugging</h3>
+<p>Currently to use the flow debugger you really need to be working on the same
+machine where your Cocoon application is running, either via a remote login or
+locally on the system. The ability to remotely attach to a running system and
+debug flow would be nice.</p>
+<a name="N100AE"></a><a name="Enable%2Fdisable+without+restart"></a>
+<h3 class="h4">Enable/disable without restart</h3>
+<p>Currently to enable/disable the debugger one has to modify the
+cocoon.xconf/flow.xconf files, perhaps it would be good if this was possible
+dynamically, ie. without a restart of the servlet environment or Cocoon.</p>
+</div>
+<a name="N100B4"></a><a name="Comments"></a>
+<h2 class="h3">Comments</h2>
+<div class="section">
+<p>Do you have an idea about how to improve the Cocoon flow debugger? Please
+post it to the
+<a href="mailto:dev.at.cocoon.apache.org?subject=FlowDebugger:">cocoon-dev</a>
+mailing list. Care to comment on this How-To? Help keep this document relevant
+by passing along any constructive feedback to the
+<a href="mailto:docs.at.cocoon.apache.org?subject=FlowDebugger:">cocoon-docs</a>
+mailing list.</p>
+</div>
+<a name="N100C2"></a><a name="Revisions"></a>
+<h2 class="h3">Revisions</h2>
+<div class="section">
+<p>11-12-2002: Content originally submitted by Marcus Crafter.</p>
+<div class="daisy-edit-link">
+<p>
+<em>Errors and Improvements?</em>
+                 If you see any errors or potential improvements in this document
+                 please help us:
+                <a class="external" href="http://cocoon.zones.apache.org/daisy/legacydocs/624">
+                  View, Edit or comment on
+                </a> the latest development version (registration required).
+              </p>
+</div>
+</div>
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