/*
* JBoss, Home of Professional Open Source.
* See the COPYRIGHT.txt file distributed with this work for information
* regarding copyright ownership. Some portions may be licensed
* to Red Hat, Inc. under one or more contributor license agreements.
*
* This library 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 library 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 library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301 USA.
*/
package org.teiid.query.processor.relational;
import java.util.Arrays;
import java.util.List;
import org.teiid.common.buffer.BlockedException;
import org.teiid.common.buffer.TupleBatch;
import org.teiid.core.TeiidComponentException;
import org.teiid.core.TeiidProcessingException;
import org.teiid.dqp.internal.process.PreparedStatementRequest;
import org.teiid.query.metadata.QueryMetadataInterface;
import org.teiid.query.sql.symbol.Reference;
public class InsertPlanExecutionNode extends PlanExecutionNode {
private List<Reference> references;
private int batchRow = 1;
private int insertCount = 0;
private TupleBatch currentBatch;
private QueryMetadataInterface metadata;
public InsertPlanExecutionNode(int nodeID, QueryMetadataInterface metadata) {
super(nodeID);
this.metadata = metadata;
}
public void setReferences(List<Reference> references) {
this.references = references;
}
@Override
protected void addBatchRow(List row) {
this.insertCount += ((Integer)row.get(0)).intValue();
}
@Override
protected TupleBatch pullBatch() {
if (isLastBatch()) {
super.addBatchRow(Arrays.asList(insertCount));
}
return super.pullBatch();
}
@Override
protected boolean hasNextCommand() {
return !this.currentBatch.getTerminationFlag() || batchRow <= this.currentBatch.getEndRow();
}
@Override
protected boolean openPlanImmediately() {
return false;
}
@Override
protected boolean prepareNextCommand() throws BlockedException,
TeiidComponentException, TeiidProcessingException {
if (this.currentBatch == null) {
this.currentBatch = this.getChildren()[0].nextBatch();
}
if (!hasNextCommand()) {
return false;
}
//assign the reference values.
PreparedStatementRequest.resolveParameterValues(this.references, this.currentBatch.getTuple(this.batchRow), getProcessorPlan().getContext(), this.metadata);
this.batchRow++;
return true;
}
public Object clone(){
InsertPlanExecutionNode clonedNode = new InsertPlanExecutionNode(super.getID(), this.metadata);
copyTo(clonedNode);
return clonedNode;
}
protected void copyTo(InsertPlanExecutionNode target) {
target.references = references;
super.copyTo(target);
}
@Override
public void closeDirect() {
super.closeDirect();
this.currentBatch = null;
}
@Override
public void reset() {
super.reset();
this.currentBatch = null;
this.batchRow = 1;
this.insertCount = 0;
}
@Override
public Boolean requiresTransaction(boolean transactionalReads) {
Boolean requires = super.requiresTransaction(transactionalReads);
if (requires == null || requires) {
return true;
}
return false;
}
}