org.datanucleus.store.types

Interface SCOCollection<T,E>

Type Parameters:

E - Element type of the collection

All Superinterfaces:

SCO<T>, SCOContainer<T>

All Known Subinterfaces:

SCOList<T,E>

All Known Implementing Classes:

ArrayList, ArrayList, Collection, Collection, HashSet, HashSet, LinkedHashSet, LinkedHashSet, LinkedList, LinkedList, List, List, PriorityQueue, PriorityQueue, Queue, Queue, Set, Set, SortedSet, SortedSet, Stack, Stack, TreeSet, TreeSet, Vector, Vector

public interface SCOCollection<T,E>
extends SCOContainer<T>

Representation of a wrapper for a mutable Collection SCO type supported.

Method Summary

Modifier and Type	Method and Description
boolean	remove(E element, boolean allowCascadeDelete) Method to remove an element from the collection, and observe the flag for whether to allow cascade delete.
void	updateEmbeddedElement(E element, int fieldNumber, Object value, boolean makeDirty) Method to update an embedded element stored in the collection

Methods inherited from interface org.datanucleus.store.types.SCOContainer

isLoaded, load, setValue

Methods inherited from interface org.datanucleus.store.types.SCO

attachCopy, clone, detachCopy, getFieldName, getOwner, getValue, initialise, initialise, initialise, unsetOwner

Method Detail

updateEmbeddedElement

void updateEmbeddedElement(E element,
                           int fieldNumber,
                           Object value,
                           boolean makeDirty)

Method to update an embedded element stored in the collection

Parameters:

element - The element

fieldNumber - Number of field in the element

value - the new value for this field

makeDirty - Whether to make the SCO field dirty.

remove

boolean remove(E element,
               boolean allowCascadeDelete)

Method to remove an element from the collection, and observe the flag for whether to allow cascade delete.

Parameters:

element - The element

allowCascadeDelete - Whether to allow cascade delete

Returns:

Whether the element was removed