/*
* Copyright 2004-2010 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.constant.ErrorCode;
import org.h2.engine.Constants;
import org.h2.engine.Database;
import org.h2.engine.Role;
import org.h2.engine.Session;
import org.h2.message.DbException;
/**
* This class represents the statement
* DROP ROLE
*/
public class DropRole extends DefineCommand {
private String roleName;
private boolean ifExists;
public DropRole(Session session) {
super(session);
}
public void setRoleName(String roleName) {
this.roleName = roleName;
}
public int update() {
session.getUser().checkAdmin();
session.commit(true);
Database db = session.getDatabase();
if (roleName.equals(Constants.PUBLIC_ROLE_NAME)) {
throw DbException.get(ErrorCode.ROLE_CAN_NOT_BE_DROPPED_1, roleName);
}
Role role = db.findRole(roleName);
if (role == null) {
if (!ifExists) {
throw DbException.get(ErrorCode.ROLE_NOT_FOUND_1, roleName);
}
} else {
db.removeDatabaseObject(session, role);
}
return 0;
}
public void setIfExists(boolean ifExists) {
this.ifExists = ifExists;
}
}