| java.lang.Object
 java.beans.PersistenceDelegate
java.beans.DefaultPersistenceDelegate
org.apache.beehive.controls.runtime.bean.BeanPersistenceDelegate
| BeanPersistenceDelegate | | public class BeanPersistenceDelegate extends DefaultPersistenceDelegate (Code) | | The BeanPersistenceDelegate class supports the XML persistence of Control JavaBeans by
implementing the java.beans.PersistenceDelegate API, and overriding the default
persistence algorithm based upon the runtime structure for Controls. It selectively registers
other PersistenceDelegate instances for other nested entities, as required, to ensure that
runtime-defined state and object relationships are properly maintained.
For the BeanInfo of all generated ControlJavaBeans, a BeanPersistenceDelegate instance will
be registered as the "persistenceDelegate" attribute in the BeanDescriptor. The standard
java.beans.Encoder persistence delegate lookup mechanism recognizes this attribute
and will use the instance to persist an ControlBeans written to the encoding stream.
The BeanPersistence class implements optimized property persistence based upon the
fact that the ControlBean already has a map containing all non-default property state. Rather
than using the standard (and slower) algorithm of comparing the encoding instance against a
'clean' instance, the delegate can simply retrieve the map and persist the values contained
within it.
See Also: java.beans.XMLEncoder
See Also: java.beans.PersistenceDelegate
See Also: |
| writeObject | | public void writeObject(Object oldInstance, Encoder out)(Code) | | PersistenceDelegate.writeObject()
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