EntityManagerChangeCount (Knowledgeplaza Java Utilities 1.17 API)

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nl.knowledgeplaza.util.jpa
Class EntityManagerChangeCount

java.lang.Object
  nl.knowledgeplaza.util.jpa.EntityManagerChangeCount

public class EntityManagerChangeCount
extends Object
extends Object

ChangeCount: a per EntityManager registration of changes present in the BM The logical place to maintain a indication of if there are any pending changes, is within the BM. Any other place (like the GUI) will result in complex administration, but using the property change event it is easily registered in the BM. There is one issue: the does not automatically clear when the EntityManager refreshes, so this has to be done explicitely from the code (TODO: can this be detected somehow????)

Author:: user

Nested Class Summary
`static interface`	`EntityManagerChangeCount.DataChangeListener`
`static class`	`EntityManagerChangeCount.EntityChangeEvent`
`static interface`	`EntityManagerChangeCount.EntityChangeListener`

Constructor Summary
`EntityManagerChangeCount()`

Method Summary
`static void`	`addDataChange(String name)` Force-add a change
`static void`	`addDataChangeListener(EntityManagerChangeCount.DataChangeListener o)` DataChangeListener
`static void`	`addEntityChangeListener(EntityManagerChangeCount.EntityChangeListener o)` DataChangeListener
`static void`	`clearPendingChanges()`
`static void`	`clearPendingChanges(javax.persistence.EntityManager entityManager)`
`static String`	`describePendingChangesDetailed()`
`static String`	`describePendingChangesDetailed(javax.persistence.EntityManager entityManager)`
`static String`	`describePendingChangesSimple()`
`static String`	`describePendingChangesSimple(javax.persistence.EntityManager entityManager)`
`static void`	`fireDataChanges()`
`static void`	`fireEntityChanges(EntityManagerChangeCount.EntityChangeEvent event)`
`static boolean`	`hasPendingChanges()`
`static boolean`	`hasPendingChanges(javax.persistence.EntityManager entityManager)`
`static void`	`markAsChanged(Object o)`
`static void`	`markAsUnchanged(Object o)`
`static void`	`removeDataChangeListener(EntityManagerChangeCount.DataChangeListener o)`
`static void`	`removeEntityChangeListener(EntityManagerChangeCount.EntityChangeListener o)`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail