com.mothsoft.alexis.dao.TermDaoImpl.java Source code

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Here is the source code for com.mothsoft.alexis.dao.TermDaoImpl.java

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/*   Copyright 2012 Tim Garrett, Mothsoft LLC
 *
 *  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 com.mothsoft.alexis.dao;

import java.util.List;

import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
import javax.persistence.Query;

import org.springframework.stereotype.Repository;

import com.mothsoft.alexis.domain.PartOfSpeech;
import com.mothsoft.alexis.domain.Term;

@Repository
public class TermDaoImpl implements TermDao {

    @PersistenceContext
    private EntityManager em;

    public void setEm(final EntityManager em) {
        this.em = em;
    }

    public void add(final Term term) {
        this.em.persist(term);
    }

    public Term find(String termValue, PartOfSpeech partOfSpeech) {
        final Query query = this.em
                .createQuery("FROM Term WHERE value = :termValue AND partOfSpeechEnumValue = :partOfSpeech");
        query.setParameter("termValue", termValue);
        query.setParameter("partOfSpeech", (byte) partOfSpeech.getValue());
        query.setHint("org.hibernate.cacheable", true);

        @SuppressWarnings("unchecked")
        final List<Term> results = query.getResultList();
        final Term result = results != null && results.size() == 1 ? results.get(0) : null;
        return result;
    }

}