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// This Source Code is in the Public Domain per: http://litesoft.org/License.txt package org.litesoft.orsup.lazyload; import org.litesoft.orsup.base.*; import org.litesoft.orsup.nonpublic.*; import org.litesoft.orsup.otherattributeaccessors.*; public class LazyLoadToOneRegular<Owner extends PersistentObjectImpl, Them extends PersistentObjectImpl> extends AbstractLazyLoadToOne<Owner, Them> { protected AttributeAccessorSCDtoOneRegular<Owner, Them> mSCDtoOneRegular; protected MetaDataForPO mThierMetaData; protected final String mThierKeyAttribute; public LazyLoadToOneRegular( Owner pOwner, AttributeAccessorSCDtoOneRegular<Owner, Them> pSCDtoOneRegular ) { super( pOwner, pSCDtoOneRegular ); mSCDtoOneRegular = pSCDtoOneRegular; mThierMetaData = getPOMetaDataRequired( pSCDtoOneRegular.getToThemName() ); mThierKeyAttribute = pSCDtoOneRegular.getToOneKeyAttribute(); } @Override public final AttributeAccessorSCDtoOneRegular<Owner, Them> getSCDtoOne() { return mSCDtoOneRegular; } public final Them getValue() { return LL_getValue(); } /** * Note Only called when the New Them is NOT the same as the Old Them * * @param pNewThem Nullable */ public final void setValue( Them pNewThem ) { LL_setValue( pNewThem, getSCDtoOne().getBackReference() ); } @Override protected String getBackRefOnUnWire( String pBackRefAttributeNameOnNewThem ) { return getSCDtoOne().getBackReference(); } /** * @param pNewThem !null */ public final Object extract_db_value( Them pNewThem ) { return LL_extract_db_value( pNewThem, null ); } /** * @param pDBValue !null */ @Override protected final PersistentObject<?> LL_loadValueWithNonNull( Object pDBValue ) { PersistentObjectUniqueKey zPOUK = new UniqueKeySingle( mThierMetaData.getAccessorSCDrequired( mThierKeyAttribute ), pDBValue ); return mOwner.getFinder().findOne( mThierMetaData.getPOregistrationName(), zPOUK ); } /** * @param pNewThem !null */ @Override protected final Object LL_extract_db_value( PersistentObjectImpl pNewThem, String pBackRefAttributeNameOnNewThem ) { return pNewThem.getAttributeValue( mThierKeyAttribute ); } } |