/**
* Copyright (C) 2009-2013 FoundationDB, LLC
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* 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/>.
*/
package com.foundationdb.sql.pg;
import com.foundationdb.sql.server.ServerCallContextStack;
import com.foundationdb.sql.server.ServerCallInvocation;
import com.foundationdb.ais.model.Column;
import com.foundationdb.qp.loadableplan.LoadableOperator;
import com.foundationdb.qp.operator.QueryBindings;
import com.foundationdb.util.tap.InOutTap;
import com.foundationdb.util.tap.Tap;
import java.io.IOException;
import java.util.List;
public class PostgresLoadableOperator extends PostgresOperatorStatement
{
private static final InOutTap EXECUTE_TAP = Tap.createTimer("PostgresLoadableOperator: execute shared");
private ServerCallInvocation invocation;
protected PostgresLoadableOperator(LoadableOperator loadableOperator,
ServerCallInvocation invocation,
List<String> columnNames, List<PostgresType> columnTypes, List<Column> aisColumns,
PostgresType[] parameterTypes)
{
super(null);
super.init(loadableOperator.plan(), null, columnNames, columnTypes, aisColumns, parameterTypes, null);
setSchema(loadableOperator.schema());
this.invocation = invocation;
}
@Override
protected InOutTap executeTap()
{
return EXECUTE_TAP;
}
@Override
public int execute(PostgresQueryContext context, QueryBindings bindings, int maxrows) throws IOException {
bindings = PostgresLoadablePlan.setParameters(bindings, invocation);
ServerCallContextStack stack = ServerCallContextStack.get();
boolean success = false;
stack.push(context, invocation);
try {
context.initStore(getSchema());
int result = super.execute(context, bindings, maxrows);
success = true;
return result;
}
finally {
stack.pop(context, invocation, success);
}
}
}