UnitInstanceRepository.java

/*
 * Copyright (c) 2013 Technische Universitat Wien (TUW), Distributed Systems Group. http://dsg.tuwien.ac.at
 *
 * This work was partially supported by the European Commission in terms of the CELAR FP7 project (FP7-ICT-2011-8 #317790), http://www.celarcloud.eu/
 *
 *    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 at.ac.tuwien.dsg.cloud.elise.master.QueryManagement.neo4jAccess;

import at.ac.tuwien.dsg.cloud.elise.model.runtime.UnitInstance;
import java.util.Set;
import org.springframework.data.neo4j.annotation.Query;
import org.springframework.data.neo4j.repository.GraphRepository;
import org.springframework.data.repository.query.Param;

/**
 *
 * @author Duc-Hung Le
 */

public interface UnitInstanceRepository extends GraphRepository<UnitInstance> {

    @Query("match (n:UnitInstance) return n")
    Set<UnitInstance> listUnitInstance();

    @Query("match (n:UnitInstance) where n.uuid={uuid} return n")
    UnitInstance findByUniqueID(@Param(value = "uuid") String uuid);

    @Query("match (n:UnitInstance) where n.name={name} return n")
    UnitInstance findByName(@Param(value = "name") String name);

    @Query("match (n:UnitInstance) where n.category={category} return n")
    Set<UnitInstance> findByCategory(@Param(value = "category") String category);

    @Query("match (n:UnitInstance)-[*]->x where n.id={id} WITH x MATCH x-[r]-() delete x,r")
    Set<UnitInstance> deleteUnitByID(@Param(value = "id") String id);
    
    @Query("match (n:UnitInstance)-[:HostOnRelationshipInstance]->(m:UnitInstance) where n.id={id} return n,m")
    Set<UnitInstance> findByHostOn(@Param(value = "id") String id);

}