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Posted to dev@tapestry.apache.org by "Jesse Kuhnert (JIRA)" <ta...@jakarta.apache.org> on 2007/02/16 03:59:05 UTC
[jira] Resolved: (TAPESTRY-1253) Meta injection throws exception
unless property accessor is defined
[ https://issues.apache.org/jira/browse/TAPESTRY-1253?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Jesse Kuhnert resolved TAPESTRY-1253.
-------------------------------------
Resolution: Fixed
Assignee: Jesse Kuhnert
Ok ....Did two things.
First was that injections of type meta with no previous "java property" equivalent will have a default type of Object, but this property is read only since you're using the very basic meta property type. (ie read only)
Added a new "meta:" binding that will hopefully be used in 97% of the cases like yours. It works in any sort of property syntax expression so it would be easy to specify it as the intitial-value to a normal property.
> Meta injection throws exception unless property accessor is defined
> -------------------------------------------------------------------
>
> Key: TAPESTRY-1253
> URL: https://issues.apache.org/jira/browse/TAPESTRY-1253
> Project: Tapestry
> Issue Type: Bug
> Components: Core
> Affects Versions: 4.0.2
> Reporter: Ilya Zverev
> Assigned To: Jesse Kuhnert
> Fix For: 4.1.2
>
>
> .page:
> <meta key="testMeta" value="123"/>
> <inject property="testInject" object="testMeta" type="meta"/>
> <component id="test" type="Insert">
> <binding name="value" value="testInject"/>
> </component>
> results in an exception:
> NullPointerException: Parameter clazz must not be null.
> Stack Trace:
> org.apache.hivemind.util.Defense.notNull(Defense.java:41)
> org.apache.tapestry.enhance.EnhancementOperationImpl.getClassReference(EnhancementOperationImpl.java:385)
> org.apache.tapestry.enhance.InjectMetaWorker.addObject(InjectMetaWorker.java:136)
> org.apache.tapestry.enhance.InjectMetaWorker.injectMetaValue(InjectMetaWorker.java:96)
> org.apache.tapestry.enhance.InjectMetaWorker.performEnhancement(InjectMetaWorker.java:62)
> ..etc...
> To avoid this exception an abstract getter method must be defined, like this:
> public abstract String getTestInject();
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