Package org.datanucleus.flush
Class CollectionRemoveOperation<E>
java.lang.Object
org.datanucleus.flush.CollectionRemoveOperation<E>
- All Implemented Interfaces:
Operation
,SCOOperation
- Direct Known Subclasses:
ListRemoveAtOperation
Remove operation for a collection.
This is usually for the situation where we have a backing store, but also can be used where we are removing an object from a collection and
the field is marked as cascade delete but we don't want to delete immediately.
-
Field Summary
FieldsModifier and TypeFieldDescription(package private) final boolean
Whether to allow cascade-delete checks.(package private) final int
(package private) final DNStateManager
(package private) final CollectionStore
<E> (package private) final E
The value to remove. -
Constructor Summary
ConstructorsConstructorDescriptionCollectionRemoveOperation
(DNStateManager sm, int fieldNum, E value, boolean allowCascadeDelete) CollectionRemoveOperation
(DNStateManager sm, CollectionStore<E> store, E value, boolean allowCascadeDelete) -
Method Summary
Modifier and TypeMethodDescriptionAccessor for the metadata for the member that this operation is for.Accessor for StateManager of the object that this operation is performed on.getStore()
Accessor for the backing store for this operation.getValue()
Accessor for the value being removed.void
perform()
Perform the remove(Object) operation on the specified container.toString()
-
Field Details
-
sm
-
fieldNumber
final int fieldNumber -
store
-
value
The value to remove. -
allowCascadeDelete
final boolean allowCascadeDeleteWhether to allow cascade-delete checks.
-
-
Constructor Details
-
CollectionRemoveOperation
public CollectionRemoveOperation(DNStateManager sm, CollectionStore<E> store, E value, boolean allowCascadeDelete) -
CollectionRemoveOperation
public CollectionRemoveOperation(DNStateManager sm, int fieldNum, E value, boolean allowCascadeDelete)
-
-
Method Details
-
getMemberMetaData
Description copied from interface:SCOOperation
Accessor for the metadata for the member that this operation is for.- Specified by:
getMemberMetaData
in interfaceSCOOperation
- Returns:
- The member metadata
-
getValue
Accessor for the value being removed.- Returns:
- Value being removed
-
perform
public void perform()Perform the remove(Object) operation on the specified container. -
getStore
Description copied from interface:SCOOperation
Accessor for the backing store for this operation.- Specified by:
getStore
in interfaceSCOOperation
- Returns:
- The backing store
-
getStateManager
Description copied from interface:Operation
Accessor for StateManager of the object that this operation is performed on.- Specified by:
getStateManager
in interfaceOperation
- Returns:
- StateManager
-
toString
-