/*
* Copyright (c) 2013, OpenCloudDB/MyCAT and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software;Designed and Developed mainly by many Chinese
* opensource volunteers. you can redistribute it and/or modify it under the
* terms of the GNU General Public License version 2 only, as published by the
* Free Software Foundation.
*
* This code 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 General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Any questions about this component can be directed to it's project Web address
* https://code.google.com/p/opencloudb/.
*
*/
package com.akiban.sql.parser;
import com.akiban.sql.StandardException;
/**
* A DropSequenceNode represents a DROP SEQUENCE statement.
*/
public class DropSequenceNode extends DDLStatementNode
{
private TableName dropItem;
private ExistenceCheck existenceCheck;
private int dropBehavior;
/**
* Initializer for a DropSequenceNode
*
* @param dropSequenceName The name of the sequence being dropped
* @throws StandardException
*/
public void init(Object dropSequenceName, Object dropBehavior, Object ec) throws StandardException {
dropItem = (TableName)dropSequenceName;
initAndCheck(dropItem);
this.dropBehavior = ((Integer)dropBehavior).intValue();
this.existenceCheck = (ExistenceCheck)ec;
}
public int getDropBehavior() {
return dropBehavior;
}
public ExistenceCheck getExistenceCheck()
{
return existenceCheck;
}
/**
* Fill this node with a deep copy of the given node.
*/
public void copyFrom(QueryTreeNode node) throws StandardException {
super.copyFrom(node);
DropSequenceNode other = (DropSequenceNode)node;
this.dropBehavior = other.dropBehavior;
this.existenceCheck = other.existenceCheck;
this.dropItem = (TableName)getNodeFactory().copyNode(other.dropItem,
getParserContext());
}
public String statementToString() {
return "DROP SEQUENCE ".concat(dropItem.getTableName());
}
public String toString() {
return super.toString() +
"dropBehavior: " + dropBehavior + "\n"
+ "existenceCheck: " + existenceCheck + "\n";
}
}