org.datanucleus.store.rdbms.scostore

Class JoinArrayStore

java.lang.Object

org.datanucleus.store.rdbms.scostore.BaseContainerStore

org.datanucleus.store.rdbms.scostore.ElementContainerStore

org.datanucleus.store.rdbms.scostore.AbstractArrayStore

org.datanucleus.store.rdbms.scostore.JoinArrayStore

All Implemented Interfaces:

org.datanucleus.store.scostore.ArrayStore, org.datanucleus.store.scostore.Store

public class JoinArrayStore
extends AbstractArrayStore

RDBMS-specific implementation of a Join ArrayStore

Nested Class Summary

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

ElementContainerStore.ElementInfo

Field Summary

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

addStmt, clearStmt, containerTable, elementInfo, elementIsPersistentInterface, elementMapping, elementsAreEmbedded, elementsAreSerialised, elementType, emd, iterateUsingDiscriminator, orderMapping, relationDiscriminatorMapping, relationDiscriminatorValue, removeStmt, sizeStmt, usingDiscriminatorInSizeStmt

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

allowNulls, clr, dba, ownerMapping, ownerMemberMetaData, relationType, storeMgr

Constructor Summary

Constructors

Constructor and Description
JoinArrayStore(org.datanucleus.metadata.AbstractMemberMetaData mmd, ArrayTable arrayTable, org.datanucleus.ClassLoaderResolver clr) Constructor for an RDBMS implementation of a join array store.

Method Summary

Modifier and Type	Method and Description
IteratorStatement	getIteratorStatement(org.datanucleus.ClassLoaderResolver clr, org.datanucleus.FetchPlan fp, boolean addRestrictionOnOwner) Method to return the SQLStatement and mapping for an iterator for this backing store.
Iterator	iterator(org.datanucleus.state.ObjectProvider ownerOP) Method to return an iterator to the array.

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

add, clear, clearInternal, getArray, internalAdd, processBatchedWrites, set

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

executeClear, getAddStmtForJoinTable, getClearStmt, getContainerTable, getElementInfo, getElementInformationForClass, getElementMapping, getEmd, getOrderMapping, getRelationDiscriminatorMapping, getRelationDiscriminatorValue, getSize, getSizeStmt, hasOrderMapping, invalidateAddStmt, isElementsAreEmbedded, isElementsAreSerialised, size, validateElementForReading, validateElementForWriting, validateElementType

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

allowsBatching, getDatastoreAdapter, getObjectProviderForEmbeddedPCObject, getOwnerMapping, getOwnerMemberMetaData, getRelationType, 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

size

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

getOwnerMemberMetaData, getStoreManager

Constructor Detail

JoinArrayStore

public JoinArrayStore(org.datanucleus.metadata.AbstractMemberMetaData mmd,
                      ArrayTable arrayTable,
                      org.datanucleus.ClassLoaderResolver clr)

Constructor for an RDBMS implementation of a join array store.

Parameters:

mmd - Metadata for the owning field/property

arrayTable - The Join table

clr - ClassLoader resolver

Method Detail

iterator

public Iterator iterator(org.datanucleus.state.ObjectProvider ownerOP)

Method to return an iterator to the array.

Specified by:

iterator in interface org.datanucleus.store.scostore.ArrayStore

Specified by:

iterator in class AbstractArrayStore

Parameters:

ownerOP - ObjectProvider for the owner of the array

Returns:

The Iterator

getIteratorStatement

public IteratorStatement getIteratorStatement(org.datanucleus.ClassLoaderResolver clr,
                                              org.datanucleus.FetchPlan fp,
                                              boolean addRestrictionOnOwner)

Method to return the SQLStatement and mapping for an iterator for this backing store.

Parameters:

clr - ClassLoader resolver

fp - FetchPlan to use in determing which fields of element to select

addRestrictionOnOwner - Whether to restrict to a particular owner (otherwise functions as bulk fetch for many owners).

Returns:

The SQLStatement and its associated StatementClassMapping