/*******************************************************************************
* See the NOTICE file distributed with this work for additional information
* regarding copyright ownership.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
******************************************************************************/
package hr.fer.zemris.vhdllab.dao;
import hr.fer.zemris.vhdllab.entity.File;
import org.springframework.transaction.annotation.Transactional;
/**
* This interface extends {@link EntityDao} to define extra methods for
* {@link File} entity.
* <p>
* An implementation of this interface must be stateless!
* </p>
*/
@Transactional
public interface FileDao extends EntityDao<File> {
/**
* Finds a file whose <code>projectId</code> and <code>name</code> are
* specified by parameters. <code>null</code> value will be returned if such
* file doesn't exist.
*
* @param projectId
* a project identifier
* @param name
* a name of a file
* @throws NullPointerException
* if any parameter is <code>null</code>
* @return specified file or <code>null</code> if such entity doesn't exist
*/
File findByName(Integer projectId, String name);
}