package com.tesora.dve.sql.transform.execution;
/*
* #%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 java.util.List;
import com.tesora.dve.db.Emitter.EmitOptions;
import com.tesora.dve.exceptions.PEException;
import com.tesora.dve.queryplan.QueryStepGeneralOperation;
import com.tesora.dve.queryplan.QueryStepGeneralOperation.AdhocOperation;
import com.tesora.dve.queryplan.QueryStepOperation;
import com.tesora.dve.resultset.ProjectionInfo;
import com.tesora.dve.sql.schema.Database;
import com.tesora.dve.sql.schema.PEStorageGroup;
import com.tesora.dve.sql.schema.SchemaContext;
public class TransientSessionExecutionStep extends ExecutionStep {
private String sql;
private AdhocOperation op;
private boolean txn;
private boolean workers;
public TransientSessionExecutionStep(Database<?> db, PEStorageGroup storageGroup, String command, boolean needsTxn, boolean needsWorkers,
AdhocOperation op) {
super(db,storageGroup,ExecutionType.SESSION);
this.sql = command;
this.op = op;
this.txn = needsTxn;
this.workers = needsWorkers;
}
public TransientSessionExecutionStep(String command, boolean needsTxn, boolean needsWorkers, AdhocOperation op) {
this(null,null,command,needsTxn,needsWorkers,op);
}
public TransientSessionExecutionStep(String command, AdhocOperation op) {
this(command, false, false, op);
}
@Override
public void schedule(ExecutionPlanOptions opts, List<QueryStepOperation> qsteps, ProjectionInfo projection, SchemaContext sc,
ConnectionValuesMap cvm, ExecutionPlan containing)
throws PEException {
qsteps.add(new QueryStepGeneralOperation(getStorageGroup(sc,cvm.getValues(containing)),op,txn,workers));
}
@Override
public void getSQL(SchemaContext sc, ConnectionValuesMap cvm, ExecutionPlan containing, List<String> buf, EmitOptions opts) {
buf.add(sql);
}
}