/*
* Copyright 2004-2011 H2 Group. Multiple-Licensed under the H2 License,
* Version 1.0, and under the Eclipse Public License, Version 1.0
* (http://h2database.com/html/license.html).
* Initial Developer: H2 Group
*/
package org.h2.command.ddl;
import org.h2.command.CommandInterface;
import org.h2.constant.ErrorCode;
import org.h2.engine.Database;
import org.h2.engine.Right;
import org.h2.engine.Session;
import org.h2.index.Index;
import org.h2.message.DbException;
import org.h2.schema.Schema;
/**
* This class represents the statement
* ALTER INDEX RENAME
*/
public class AlterIndexRename extends DefineCommand {
private Index oldIndex;
private String newIndexName;
public AlterIndexRename(Session session) {
super(session);
}
public void setOldIndex(Index index) {
oldIndex = index;
}
public void setNewName(String name) {
newIndexName = name;
}
public int update() {
session.commit(true);
Database db = session.getDatabase();
Schema schema = oldIndex.getSchema();
if (schema.findIndex(session, newIndexName) != null || newIndexName.equals(oldIndex.getName())) {
throw DbException.get(ErrorCode.INDEX_ALREADY_EXISTS_1, newIndexName);
}
session.getUser().checkRight(oldIndex.getTable(), Right.ALL);
db.renameSchemaObject(session, oldIndex, newIndexName);
return 0;
}
public int getType() {
return CommandInterface.ALTER_INDEX_RENAME;
}
}