package com.tesora.dve.queryplan;
/*
* #%L
* Tesora Inc.
* Database Virtualization Engine
* %%
* Copyright (C) 2011 - 2014 Tesora Inc.
* %%
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
* #L%
*/
import com.tesora.dve.db.DBResultConsumer;
import com.tesora.dve.exceptions.PEException;
import com.tesora.dve.resultset.IntermediateResultSet;
import com.tesora.dve.worker.WorkerGroup;
public class QueryStepAdhocResultsOperation extends QueryStepOperation {
private IntermediateResultSet results;
public QueryStepAdhocResultsOperation(IntermediateResultSet irs) throws PEException {
super(nullStorageGroup);
results = irs;
}
@Override
public void executeSelf(ExecutionState estate, WorkerGroup wg, DBResultConsumer resultConsumer)
throws Throwable {
resultConsumer.inject(results.getMetadata(), results.getRows());
}
@Override
public boolean requiresTransactionSelf() {
return false;
}
@Override
public boolean requiresWorkers() {
// could be executed before the database is set
return false;
}
}