org.ualerts.fixed.repository.JpaBuildingRepository.java Source code

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Here is the source code for org.ualerts.fixed.repository.JpaBuildingRepository.java

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/*
 * File created on May 1, 2013 
 *
 * Copyright 2008-2013 Virginia Polytechnic Institute and State University
 *
 * 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 org.ualerts.fixed.repository;

import java.util.List;

import javax.persistence.NoResultException;
import javax.persistence.TypedQuery;

import org.springframework.stereotype.Repository;
import org.ualerts.fixed.Building;

/**
 * JPA implementation of {@link BuildingRepository}.
 *
 * @author Brian Early
 */
@Repository("buildingRepository")
public class JpaBuildingRepository extends AbstractJpaRepository implements BuildingRepository {

    /**
     * {@inheritDoc}
     */
    @Override
    public List<Building> findAllBuildings() {
        TypedQuery<Building> query = getEntityManager().createNamedQuery("findAllBuildings", Building.class);
        return query.getResultList();
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public Building findBuildingById(String id) {
        Building result = null;
        try {
            result = getEntityManager().createNamedQuery("findBuildingById", Building.class).setParameter("id", id)
                    .getSingleResult();
        } catch (NoResultException ex) {
            result = null;
        }
        return result;
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public Building findBuildingByName(String name) {
        Building result = null;
        try {
            result = getEntityManager().createNamedQuery("findBuildingByName", Building.class)
                    .setParameter("name", name).getSingleResult();
        } catch (NoResultException ex) {
            result = null;
        }
        return result;
    }

}