/*
* 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.sql.lang;
import java.util.ArrayList;
import java.util.List;
import org.teiid.core.util.EquivalenceUtil;
import org.teiid.query.sql.LanguageObject;
import org.teiid.query.sql.LanguageVisitor;
import org.teiid.query.sql.util.VariableContext;
/**
* Represents a batch of INSERT, UPDATE, DELETE, and SELECT INTO commands
* @since 4.2
*/
public class BatchedUpdateCommand extends Command {
protected List<Command> commands;
private List<VariableContext> variableContexts; //processing state
private boolean singleResult;
/**
*
* @param updateCommands
* @since 4.2
*/
public BatchedUpdateCommand(List<? extends Command> updateCommands) {
this(updateCommands, false);
}
public BatchedUpdateCommand(List<? extends Command> updateCommands, boolean singleResult) {
this.commands = new ArrayList<Command>(updateCommands);
this.singleResult = singleResult;
}
/**
* Gets the List of updates contained in this batch
* @return
* @since 4.2
*/
public List<Command> getUpdateCommands() {
return commands;
}
/**
* @see org.teiid.query.sql.lang.Command#getType()
* @since 4.2
*/
public int getType() {
return Command.TYPE_BATCHED_UPDATE;
}
/**
* @see org.teiid.query.sql.lang.Command#getProjectedSymbols()
* @since 4.2
*/
public List getProjectedSymbols() {
return Command.getUpdateCommandSymbol();
}
/**
* @since 4.2
*/
public void acceptVisitor(LanguageVisitor visitor) {
visitor.visit(this);
}
/**
* @see java.lang.Object#clone()
* @since 4.2
*/
public Object clone() {
List<Command> clonedCommands = LanguageObject.Util.deepClone(this.commands, Command.class);
BatchedUpdateCommand copy = new BatchedUpdateCommand(clonedCommands);
copy.singleResult = this.singleResult;
copyMetadataState(copy);
return copy;
}
/**
* @see org.teiid.query.sql.lang.Command#areResultsCachable()
*/
public boolean areResultsCachable() {
return false;
}
public String toString() {
return getStringForm(false);
}
public void setVariableContexts(List<VariableContext> variableContexts) {
this.variableContexts = variableContexts;
}
public List<VariableContext> getVariableContexts() {
return variableContexts;
}
@Override
public int hashCode() {
return commands.hashCode();
}
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (!(obj instanceof BatchedUpdateCommand)) {
return false;
}
BatchedUpdateCommand other = (BatchedUpdateCommand)obj;
return EquivalenceUtil.areEqual(commands, other.commands) && this.singleResult == other.singleResult;
}
public void setSingleResult(boolean singleResult) {
this.singleResult = singleResult;
}
public boolean isSingleResult() {
return singleResult;
}
public String getStringForm(boolean full) {
StringBuffer val = new StringBuffer();
if (!full) {
val.append("BatchedUpdate{"); //$NON-NLS-1$
}
if (commands != null && commands.size() > 0) {
for (int i = 0; i < commands.size(); i++) {
if (i > 0) {
if (full) {
val.append(";\n"); //$NON-NLS-1$
} else {
val.append(","); //$NON-NLS-1$
}
}
if (full) {
val.append(commands.get(i));
} else {
val.append(getCommandToken(commands.get(i).getType()));
}
}
}
if (!full) {
val.append('}');
}
return val.toString();
}
}