CompositeCollection.CollectionMutator (Drools 4.0.0.11754MR2 API) - JBoss RULES 4.0.0.11754MR2 API 英文版文档

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org.drools.util
Interface CompositeCollection.CollectionMutator

Pluggable strategy to handle changes to the composite.

Method Summary

boolean add(CompositeCollection composite, Collection[] collections, Object obj)
          Called when an object is to be added to the composite.

boolean addAll(CompositeCollection composite, Collection[] collections, Collection coll)
          Called when a collection is to be added to the composite.

boolean remove(CompositeCollection composite, Collection[] collections, Object obj)
          Called when an object is to be removed to the composite.

Method Summary
`boolean`	`add(CompositeCollection composite, Collection[] collections, Object obj)` Called when an object is to be added to the composite.
`boolean`	`addAll(CompositeCollection composite, Collection[] collections, Collection coll)` Called when a collection is to be added to the composite.
`boolean`	`remove(CompositeCollection composite, Collection[] collections, Object obj)` Called when an object is to be removed to the composite.

Method Detail

boolean add(CompositeCollection composite,
            Collection[] collections,
            Object obj)

Called when an object is to be added to the composite.

Parameters:: composite - the CompositeCollection being changed; collections - all of the Collection instances in this CompositeCollection; obj - the object being added
Returns:: true if the collection is changed
Throws:: UnsupportedOperationException - if add is unsupported; ClassCastException - if the object cannot be added due to its type; NullPointerException - if the object cannot be added because its null; IllegalArgumentException - if the object cannot be added

boolean addAll(CompositeCollection composite,
               Collection[] collections,
               Collection coll)

Called when a collection is to be added to the composite.

Parameters:: composite - the CompositeCollection being changed; collections - all of the Collection instances in this CompositeCollection; coll - the collection being added
Returns:: true if the collection is changed
Throws:: UnsupportedOperationException - if add is unsupported; ClassCastException - if the object cannot be added due to its type; NullPointerException - if the object cannot be added because its null; IllegalArgumentException - if the object cannot be added

boolean remove(CompositeCollection composite,
               Collection[] collections,
               Object obj)

Called when an object is to be removed to the composite.

Parameters:: composite - the CompositeCollection being changed; collections - all of the Collection instances in this CompositeCollection; obj - the object being removed
Returns:: true if the collection is changed
Throws:: UnsupportedOperationException - if removed is unsupported; ClassCastException - if the object cannot be removed due to its type; NullPointerException - if the object cannot be removed because its null; IllegalArgumentException - if the object cannot be removed