/*
* Copyright 1999-2010 Luca Garulli (l.garulli--at--orientechnologies.com)
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.orientechnologies.orient.core.index;
import java.util.Set;
import com.orientechnologies.orient.core.db.record.OIdentifiable;
import com.orientechnologies.orient.core.db.record.ORecordLazySet;
import com.orientechnologies.orient.core.record.ORecord;
/**
* Abstract not unique index class.
*
* @author Luca Garulli
*
*/
public class OIndexNotUnique extends OIndexMVRBTreeAbstract {
public OIndexNotUnique() {
super("NOTUNIQUE");
}
public OIndex put(final Object iKey, final OIdentifiable iSingleValue) {
checkForOptimization();
acquireExclusiveLock();
try {
checkForKeyType(iKey);
Set<OIdentifiable> values = map.get(iKey);
checkForOptimization();
if (values == null)
values = new ORecordLazySet(configuration.getDatabase()).setRidOnly(true);
if (!iSingleValue.getIdentity().isValid())
((ORecord<?>) iSingleValue).save();
values.add(iSingleValue);
map.put(iKey, values);
return this;
} finally {
releaseExclusiveLock();
}
}
public boolean remove(final Object iKey, final OIdentifiable iValue) {
checkForOptimization();
acquireExclusiveLock();
try {
final Set<OIdentifiable> recs = get(iKey);
if (recs != null && !recs.isEmpty()) {
if (recs.remove(iValue)) {
map.put(iKey, recs);
return true;
}
}
return false;
} finally {
releaseExclusiveLock();
}
}
}