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package org.litesoft.initfrom.server.boviews.podataproviders.support;
import org.litesoft.bo.*;
import org.litesoft.bo.views.*;
import org.litesoft.core.*;
import org.litesoft.core.simpletypes.*;
import org.litesoft.core.util.*;
import org.litesoft.orsup.base.*;
import org.litesoft.orsup.otherattributeaccessors.*;
import org.litesoft.orsup.selection.*;
import org.litesoft.util.*;
public class WhereClauseSupport
{
private static final WhereClauseFactory FACTORY = WhereClauseFactory.INSTANCE;
private Finder mFinder;
private MetaDataForPO mPoMetaData;
private DerivedFromAttributeSource mDerivedFromAttributeSource;
public WhereClauseSupport( Finder pFinder, MetaDataForPO pPoMetaData, DerivedFromAttributeSource pDerivedFromAttributeSource )
{
mFinder = pFinder == null ? DataStoreLocator.get().getUnfilteredFinder() : pFinder;
mPoMetaData = pPoMetaData;
mDerivedFromAttributeSource = pDerivedFromAttributeSource;
}
public WhereClause createWhereClause( SSMap... pORed_ANDFiltersNotNullNotEmpty )
{
if ( pORed_ANDFiltersNotNullNotEmpty.length == 0 )
{
return FACTORY.alwaysTrue();
}
WhereClause zWhereClause = FACTORY.alwaysFalse();
for ( SSMap zMap : pORed_ANDFiltersNotNullNotEmpty )
{
WhereClause zMapWhereClause = createWhereClause( zMap );
if ( FACTORY.alwaysTrue() == zMapWhereClause )
{
return zMapWhereClause;
}
zWhereClause = FACTORY.or( zWhereClause, zMapWhereClause );
}
return zWhereClause;
}
protected WhereClause createWhereClause( SSMap pFilters )
{
if ( pFilters instanceof NoRowsMatchingFilterMap )
{
return FACTORY.alwaysFalse();
}
WhereClause zWhereClause = FACTORY.alwaysTrue();
if ( (pFilters != null) && !pFilters.isEmpty() )
{
boolean zEquals = (pFilters instanceof EqualsMatchingFilterMap);
for ( String zAttributeName : pFilters.keySet() )
{
WhereClause zWhereClauseForAttribute = createWhereClause( zEquals, zAttributeName, pFilters.get( zAttributeName ).trim() );
if ( zWhereClauseForAttribute == FACTORY.alwaysFalse() )
{
return FACTORY.alwaysFalse();
}
zWhereClause = FACTORY.and( zWhereClause, zWhereClauseForAttribute );
}
}
return zWhereClause;
}
protected WhereClause createWhereClause( boolean pEquals, String pAttributeName, String pAttributeValue )
{
if ( pAttributeValue.length() == 0 )
{
return FACTORY.alwaysFalse();
}
String zAttributePath = mDerivedFromAttributeSource.getDerivedFromAttributePath( pAttributeName );
if ( zAttributePath == null )
{
return FACTORY.alwaysFalse(); // todo: Decide what to do about non-dervived attributes
}
AttributeAccessorSCDpath.Node[] zPathNodes = new AttributeAccessorSCDpath( mFinder, mPoMetaData )
{
@Override
protected boolean isAcceptableLeaf( AttributeAccessorSCD pSCD )
{
return (pSCD instanceof AttributeAccessorSCDsimplePersistedRegular) || (null != getAcceptableRelationship( pSCD ));
}
}.createPath( zAttributePath );
if ( UtilsCommon.isNullOrEmpty( zPathNodes ) )
{
return FACTORY.alwaysFalse(); // todo: Decide to fix AttributeAccessorSCDpathNode to throw exception or DO NOTHING
}
AttributeAccessorSCD zLastAA = zPathNodes[zPathNodes.length - 1].getAttributeAccessor();
boolean zIsString = BoAttribute.AttributeType.String.equals( zLastAA.getAMD().getType().getBoAttributeType() );
if ( zPathNodes.length > 1 )
{
throw new NotImplementedYetException( "relationships: " + zAttributePath );
}
AttributeAccessorSCD zSCD = zPathNodes[0].getAttributeAccessor();
if ( !zIsString )
{
return FACTORY.isEqual( zSCD, pAttributeValue ); // todo: Form not String?
}
if ( pEquals )
{
return FACTORY.isEqual( zSCD, pAttributeValue );
}
String[] zParts = UtilsCommon.parseChar( pAttributeValue, '*' );
if ( zParts.length == 1 )
{
zParts = Utils.appendString( zParts, "" );
}
return FACTORY.like( zSCD, zParts );
}
}
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Revision |
Author |
Commited |
Message |
191
|
GeorgeS
|
Mon 02 May, 2011 04:43:13 +0000 |
|