/*
* 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.Role;
import org.lealone.engine.Database;
import org.lealone.engine.Session;
import org.lealone.message.DbException;
/**
* This class represents the statement
* CREATE ROLE
*/
public class CreateRole extends DefineCommand {
private String roleName;
private boolean ifNotExists;
public CreateRole(Session session) {
super(session);
}
public void setIfNotExists(boolean ifNotExists) {
this.ifNotExists = ifNotExists;
}
public void setRoleName(String name) {
this.roleName = name;
}
public int update() {
session.getUser().checkAdmin();
session.commit(true);
Database db = session.getDatabase();
if (db.findUser(roleName) != null) {
throw DbException.get(ErrorCode.USER_ALREADY_EXISTS_1, roleName);
}
if (db.findRole(roleName) != null) {
if (ifNotExists) {
return 0;
}
throw DbException.get(ErrorCode.ROLE_ALREADY_EXISTS_1, roleName);
}
int id = getObjectId();
Role role = new Role(db, id, roleName, false);
db.addDatabaseObject(session, role);
return 0;
}
public int getType() {
return CommandInterface.CREATE_ROLE;
}
}