Make Component.ENABLED_IN_HIERARCHY_CACHE_KEY a instance variable rather than a
MetaDataKey
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Key: WICKET-2064
URL: https://issues.apache.org/jira/browse/WICKET-2064
Project: Wicket
Issue Type: Improvement
Components: wicket
Affects Versions: 1.4-RC1
Reporter: Juergen Donnerstag
Priority: Minor
Component.ENABLED_IN_HIERARCHY_CACHE_KEY currently is a MetaDataKey which get
added to each Component if isEnableInHierarchy is invoked. That basically
happens all the time. In contrast the concept of MetaData has been introduced
to allow rarely used data to be attached to Components (with java 1.5 in a
typesafe manner). Since MetaData introduce some overhead, and for simplicity
reasons, I'd suggest to convert Component.ENABLED_IN_HIERARCHY_CACHE_KEY into a
Boolean instance variable.
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