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/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* Copyright (c) 2008, Red Hat Middleware LLC or third-party contributors as
* indicated by the @author tags or express copyright attribution
* statements applied by the authors. All third-party contributions are
* distributed under license by Red Hat Middleware LLC.
*
* This copyrighted material is made available to anyone wishing to use, modify,
* copy, or redistribute it subject to the terms and conditions of the GNU
* Lesser General Public License, as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
* for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this distribution; if not, write to:
* Free Software Foundation, Inc.
* 51 Franklin Street, Fifth Floor
* Boston, MA 02110-1301 USA
*/
package org.hibernate.envers.entities.mapper.id;
import java.util.Iterator;
import java.util.List;
import org.hibernate.envers.tools.query.Parameters;
/**
* @author Adam Warski (adam at warski dot org)
*/
public abstract class AbstractIdMapper implements IdMapper {
private Parameters getParametersToUse(Parameters parameters, List paramDatas) {
if (paramDatas.size() > 1) {
return parameters.addSubParameters("and");
} else {
return parameters;
}
}
public void addIdsEqualToQuery(Parameters parameters, String prefix1, String prefix2) {
List paramDatas = mapToQueryParametersFromId(null);
Parameters parametersToUse = getParametersToUse(parameters, paramDatas);
for (QueryParameterData paramData : paramDatas) {
parametersToUse.addWhere(paramData.getProperty(prefix1), false, "=", paramData.getProperty(prefix2), false);
}
}
public void addIdsEqualToQuery(Parameters parameters, String prefix1, IdMapper mapper2, String prefix2) {
List paramDatas1 = mapToQueryParametersFromId(null);
List paramDatas2 = mapper2.mapToQueryParametersFromId(null);
Parameters parametersToUse = getParametersToUse(parameters, paramDatas1);
Iterator paramDataIter1 = paramDatas1.iterator();
Iterator paramDataIter2 = paramDatas2.iterator();
while (paramDataIter1.hasNext()) {
QueryParameterData paramData1 = paramDataIter1.next();
QueryParameterData paramData2 = paramDataIter2.next();
parametersToUse.addWhere(paramData1.getProperty(prefix1), false, "=", paramData2.getProperty(prefix2), false);
}
}
public void addIdEqualsToQuery(Parameters parameters, Object id, String prefix, boolean equals) {
List paramDatas = mapToQueryParametersFromId(id);
Parameters parametersToUse = getParametersToUse(parameters, paramDatas);
for (QueryParameterData paramData : paramDatas) {
if (paramData.getValue() == null) {
handleNullValue(parametersToUse, paramData.getProperty(prefix), equals);
} else {
parametersToUse.addWhereWithParam(paramData.getProperty(prefix), equals ? "=" : "<>", paramData.getValue());
}
}
}
public void addNamedIdEqualsToQuery(Parameters parameters, String prefix, boolean equals) {
List paramDatas = mapToQueryParametersFromId(null);
Parameters parametersToUse = getParametersToUse(parameters, paramDatas);
for (QueryParameterData paramData : paramDatas) {
parametersToUse.addWhereWithNamedParam(paramData.getProperty(prefix), equals ? "=" : "<>", paramData.getQueryParameterName());
}
}
private void handleNullValue(Parameters parameters, String propertyName, boolean equals) {
if (equals) {
parameters.addNullRestriction(propertyName, equals);
} else {
parameters.addNotNullRestriction(propertyName, equals);
}
}
}