/*
* JBoss, Home of Professional Open Source.
* Copyright 2011, Red Hat Middleware LLC, and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software 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 software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.infinispan.query.clustered;
import java.util.UUID;
import org.hibernate.search.query.engine.spi.HSQuery;
import org.infinispan.Cache;
import org.infinispan.query.clustered.commandworkers.CQCreateEagerQuery;
import org.infinispan.query.clustered.commandworkers.CQCreateLazyQuery;
import org.infinispan.query.clustered.commandworkers.CQGetResultSize;
import org.infinispan.query.clustered.commandworkers.CQKillLazyIterator;
import org.infinispan.query.clustered.commandworkers.CQLazyFetcher;
import org.infinispan.query.clustered.commandworkers.ClusteredQueryCommandWorker;
/**
* Types of ClusteredQueryCommandWorker. Each type defines a different behavior for a
* ClusteredQueryCommand...
*
* @author Israel Lacerra <israeldl@gmail.com>
* @since 5.1
*/
public enum ClusteredQueryCommandType {
CREATE_LAZY_ITERATOR() {
@Override
public ClusteredQueryCommandWorker getNewInstance() {
return new CQCreateLazyQuery();
}
},
CREATE_EAGER_ITERATOR() {
@Override
public ClusteredQueryCommandWorker getNewInstance() {
return new CQCreateEagerQuery();
}
},
DESTROY_LAZY_ITERATOR() {
@Override
public ClusteredQueryCommandWorker getNewInstance() {
return new CQKillLazyIterator();
}
},
GET_SOME_KEYS() {
@Override
public ClusteredQueryCommandWorker getNewInstance() {
return new CQLazyFetcher();
}
},
GET_RESULT_SIZE() {
@Override
public ClusteredQueryCommandWorker getNewInstance() {
return new CQGetResultSize();
}
};
protected abstract ClusteredQueryCommandWorker getNewInstance();
public ClusteredQueryCommandWorker getCommand(Cache<?, ?> cache, HSQuery query, UUID lazyQueryId,
int docIndex) {
ClusteredQueryCommandWorker command = null;
command = getNewInstance();
command.init(cache, query, lazyQueryId, docIndex);
return command;
}
}