org.datanucleus.store.mapped.scostore
Class FKArrayStore

java.lang.Object
  org.datanucleus.store.mapped.scostore.BaseContainerStore
      org.datanucleus.store.mapped.scostore.ElementContainerStore
          org.datanucleus.store.mapped.scostore.AbstractArrayStore
              org.datanucleus.store.mapped.scostore.FKArrayStore

All Implemented Interfaces:

ArrayStore, Store

public abstract class FKArrayStore
extends AbstractArrayStore

Backing store for an array that is formed by a foreign key in the table of the element type. Only supported when the element is a PersistenceCapable type (since that has its own element table, capable of having a FK!)

Nested Class Summary

Nested classes/interfaces inherited from class org.datanucleus.store.mapped.scostore.ElementContainerStore

ElementContainerStore.ElementInfo

Field Summary

Fields inherited from class org.datanucleus.store.mapped.scostore.ElementContainerStore

clr, containerTable, elementInfo, elementIsPersistentInterface, elementMapping, elementsAreEmbedded, elementsAreSerialised, elementType, emd, iterateUsingDiscriminator, orderMapping, relationDiscriminatorMapping, relationDiscriminatorValue, specialization

Fields inherited from class org.datanucleus.store.mapped.scostore.BaseContainerStore

allowNulls, dba, LOCALISER, ownerMapping, ownerMemberMetaData, relationType, storeMgr

Constructor Summary

FKArrayStore(AbstractMemberMetaData fmd, MappedStoreManager storeMgr, ClassLoaderResolver clr, FKArrayStoreSpecialization specialization)
Constructor.

Method Summary

void	clear(ObjectProvider ownerSM) Method to clear the Array.
boolean	set(ObjectProvider ownerSM, java.lang.Object array) Method to set the array for the specified owner to the passed value.

Methods inherited from class org.datanucleus.store.mapped.scostore.AbstractArrayStore

add, getArray, iterator

Methods inherited from class org.datanucleus.store.mapped.scostore.ElementContainerStore

getContainerTable, getElementInfo, getElementInformationForClass, getElementMapping, getElementType, getEmd, getOrderMapping, getRelationDiscriminatorMapping, getRelationDiscriminatorValue, hasOrderMapping, isElementsAreEmbedded, isElementsAreSerialised, size, validateElementForReading, validateElementForWriting, validateElementType

Methods inherited from class org.datanucleus.store.mapped.scostore.BaseContainerStore

allowsBatching, getDatastoreAdapter, getOwnerMapping, getOwnerMemberMetaData, getRelationType, getStateManagerForEmbeddedPCObject, getStoreManager, isEmbeddedMapping, setOwner

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.datanucleus.store.scostore.ArrayStore

getElementType, size

Methods inherited from interface org.datanucleus.store.scostore.Store

getStoreManager

Constructor Detail

FKArrayStore

public FKArrayStore(AbstractMemberMetaData fmd,
                    MappedStoreManager storeMgr,
                    ClassLoaderResolver clr,
                    FKArrayStoreSpecialization specialization)

Constructor.

Parameters:

fmd - Field MetaData for the field that this represents

storeMgr - The Store Manager in use

clr - The ClassLoaderResolver

Method Detail

clear

public void clear(ObjectProvider ownerSM)

Method to clear the Array. This is called when the container object is being deleted and the elements are to be removed (maybe for dependent field).

Specified by:

clear in interface ArrayStore

Overrides:

clear in class AbstractArrayStore

Parameters:

ownerSM - The state manager

set

public boolean set(ObjectProvider ownerSM,
                   java.lang.Object array)

Method to set the array for the specified owner to the passed value.

Specified by:

set in interface ArrayStore

Overrides:

set in class AbstractArrayStore

Parameters:

ownerSM - State Manager for the owner

array - the array

Returns:

Whether the array was updated successfully