/*
* Copyright 2004-2013 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.lealone.command.ddl;
import org.lealone.command.CommandInterface;
import org.lealone.constant.ErrorCode;
import org.lealone.dbobject.UserDataType;
import org.lealone.dbobject.table.Column;
import org.lealone.dbobject.table.Table;
import org.lealone.engine.Database;
import org.lealone.engine.Session;
import org.lealone.message.DbException;
import org.lealone.value.DataType;
/**
* This class represents the statement
* CREATE DOMAIN
*/
public class CreateUserDataType extends DefineCommand {
private String typeName;
private Column column;
private boolean ifNotExists;
public CreateUserDataType(Session session) {
super(session);
}
public void setTypeName(String name) {
this.typeName = name;
}
public void setColumn(Column column) {
this.column = column;
}
public void setIfNotExists(boolean ifNotExists) {
this.ifNotExists = ifNotExists;
}
public int update() {
session.getUser().checkAdmin();
session.commit(true);
Database db = session.getDatabase();
session.getUser().checkAdmin();
if (db.findUserDataType(typeName) != null) {
if (ifNotExists) {
return 0;
}
throw DbException.get(ErrorCode.USER_DATA_TYPE_ALREADY_EXISTS_1, typeName);
}
DataType builtIn = DataType.getTypeByName(typeName);
if (builtIn != null) {
if (!builtIn.hidden) {
throw DbException.get(ErrorCode.USER_DATA_TYPE_ALREADY_EXISTS_1, typeName);
}
Table table = session.getDatabase().getFirstUserTable();
if (table != null) {
throw DbException.get(ErrorCode.USER_DATA_TYPE_ALREADY_EXISTS_1, typeName + " (" + table.getSQL() + ")");
}
}
int id = getObjectId();
UserDataType type = new UserDataType(db, id, typeName);
type.setColumn(column);
db.addDatabaseObject(session, type);
return 0;
}
public int getType() {
return CommandInterface.CREATE_DOMAIN;
}
}