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();
}
};
private static final ClusteredQueryCommandType[] CACHED_VALUES = values();
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;
}
public static ClusteredQueryCommandType valueOf(int ordinal) {
return CACHED_VALUES[ordinal];
}
}