/*
* 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.dml;
import org.h2.command.CommandInterface;
import org.h2.command.ddl.SchemaCommand;
import org.h2.engine.Right;
import org.h2.engine.Session;
import org.h2.message.DbException;
import org.h2.schema.Schema;
import org.h2.table.Table;
/**
* This class represents the statement
* ALTER TABLE SET
*/
public class AlterTableSet extends SchemaCommand {
private String tableName;
private final int type;
private boolean value;
private boolean checkExisting;
public AlterTableSet(Session session, Schema schema, int type, boolean value) {
super(session, schema);
this.type = type;
this.value = value;
}
public void setCheckExisting(boolean b) {
this.checkExisting = b;
}
public boolean isTransactional() {
return true;
}
public void setTableName(String tableName) {
this.tableName = tableName;
}
public int update() {
Table table = getSchema().getTableOrView(session, tableName);
session.getUser().checkRight(table, Right.ALL);
table.lock(session, true, true);
switch(type) {
case CommandInterface.ALTER_TABLE_SET_REFERENTIAL_INTEGRITY:
table.setCheckForeignKeyConstraints(session, value, value ? checkExisting : false);
break;
default:
DbException.throwInternalError("type="+type);
}
return 0;
}
public int getType() {
return type;
}
}