Package org.datanucleus.flush
Class CollectionRemoveOperation<E>
- java.lang.Object
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- org.datanucleus.flush.CollectionRemoveOperation<E>
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- All Implemented Interfaces:
Operation
,SCOOperation
- Direct Known Subclasses:
ListRemoveAtOperation
public class CollectionRemoveOperation<E> extends Object implements SCOOperation
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.
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Constructor Summary
Constructors Constructor Description CollectionRemoveOperation(DNStateManager sm, int fieldNum, E value, boolean allowCascadeDelete)
CollectionRemoveOperation(DNStateManager sm, CollectionStore<E> store, E value, boolean allowCascadeDelete)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description AbstractMemberMetaData
getMemberMetaData()
Accessor for the metadata for the member that this operation is for.DNStateManager
getStateManager()
Accessor for StateManager of the object that this operation is performed on.Store
getStore()
Accessor for the backing store for this operation.E
getValue()
Accessor for the value being removed.void
perform()
Perform the remove(Object) operation on the specified container.String
toString()
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Constructor Detail
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CollectionRemoveOperation
public CollectionRemoveOperation(DNStateManager sm, CollectionStore<E> store, E value, boolean allowCascadeDelete)
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CollectionRemoveOperation
public CollectionRemoveOperation(DNStateManager sm, int fieldNum, E value, boolean allowCascadeDelete)
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Method Detail
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getMemberMetaData
public AbstractMemberMetaData 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
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getValue
public E getValue()
Accessor for the value being removed.- Returns:
- Value being removed
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perform
public void perform()
Perform the remove(Object) operation on the specified container.
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getStore
public Store getStore()
Description copied from interface:SCOOperation
Accessor for the backing store for this operation.- Specified by:
getStore
in interfaceSCOOperation
- Returns:
- The backing store
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getStateManager
public DNStateManager 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
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