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/*
* Copyright (c) 2010-2013, 2018 Eike Stepper (Loehne, Germany) and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Eike Stepper - initial API and implementation
* Stefan Winkler - major refactoring
* Stefan Winkler - Bug 329025: [DB] Support branching for range-based mapping strategy
*/
package org.eclipse.emf.cdo.server.internal.db.mapping.horizontal;
import org.eclipse.emf.cdo.server.db.mapping.IClassMapping;
import org.eclipse.emf.cdo.server.db.mapping.IListMapping;
import org.eclipse.emf.ecore.EClass;
import org.eclipse.emf.ecore.EStructuralFeature;
/**
* @author Eike Stepper
* @since 2.0
*/
public class HorizontalAuditMappingStrategyWithRanges extends HorizontalAuditMappingStrategy
{
public HorizontalAuditMappingStrategyWithRanges()
{
}
@Override
public boolean hasDeltaSupport()
{
return true;
}
@Override
protected IClassMapping doCreateClassMapping(EClass eClass)
{
return new HorizontalAuditClassMapping(this, eClass);
}
@Override
public IListMapping doCreateListMapping(EClass containingClass, EStructuralFeature feature)
{
return new AuditListTableMappingWithRanges(this, containingClass, feature);
}
@Deprecated
@Override
public IListMapping doCreateFeatureMapMapping(EClass containingClass, EStructuralFeature feature)
{
return new AuditFeatureMapTableMappingWithRanges(this, containingClass, feature);
}
@Override
protected String modifyListJoin(String attrTable, String listTable, String join)
{
join += " AND " + listTable + "." + LIST_REVISION_VERSION_ADDED;
join += "<=" + attrTable + "." + ATTRIBUTES_VERSION;
join += " AND (" + listTable + "." + LIST_REVISION_VERSION_REMOVED;
join += " IS NULL OR " + listTable + "." + LIST_REVISION_VERSION_REMOVED;
join += ">" + attrTable + "." + ATTRIBUTES_VERSION + ")";
return join;
}
}
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