de.forsthaus.backend.dao.impl.SecRolegroupDAOImpl.java Source code

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Here is the source code for de.forsthaus.backend.dao.impl.SecRolegroupDAOImpl.java

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/**
 * Copyright 2010 the original author or authors.
 * 
 * This file is part of Zksample2. http://zksample2.sourceforge.net/
 *
 * Zksample2 is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * Zksample2 is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Zksample2.  If not, see <http://www.gnu.org/licenses/gpl.html>.
 */
package de.forsthaus.backend.dao.impl;

import java.util.List;

import org.hibernate.criterion.DetachedCriteria;
import org.hibernate.criterion.Projections;
import org.hibernate.criterion.Restrictions;
import org.springframework.dao.support.DataAccessUtils;
import org.springframework.stereotype.Repository;

import de.forsthaus.backend.dao.SecRolegroupDAO;
import de.forsthaus.backend.model.SecGroup;
import de.forsthaus.backend.model.SecRole;
import de.forsthaus.backend.model.SecRolegroup;

/**
 * EN: DAO methods implementation for the <b>SecRolgroup</b> model class.<br>
 * DE: DAO Methoden Implementierung fuer die <b>SecRolgroup</b> Model Klasse.<br>
 * 
 * @author bbruhns
 * @author Stephan Gerth
 */
@Repository
public class SecRolegroupDAOImpl extends BasisDAO<SecRolegroup> implements SecRolegroupDAO {

    @Override
    public SecRolegroup getNewSecRolegroup() {
        return new SecRolegroup();
    }

    @SuppressWarnings("unchecked")
    @Override
    public List<SecGroup> getGroupsByRole(SecRole aRole) {

        DetachedCriteria criteria = DetachedCriteria.forClass(SecGroup.class);

        // Aliases are working only on properties
        criteria.createAlias("secRolegroups", "rg");
        criteria.add(Restrictions.eq("rg.secRole", aRole));

        return getHibernateTemplate().findByCriteria(criteria);
    }

    @Override
    public List<SecRolegroup> getAllRolegroups() {
        return getHibernateTemplate().loadAll(SecRolegroup.class);
    }

    @SuppressWarnings("unchecked")
    @Override
    public SecRolegroup getRolegroupByRoleAndGroup(SecRole aRole, SecGroup aGroup) {
        DetachedCriteria criteria = DetachedCriteria.forClass(SecRolegroup.class);
        criteria.add(Restrictions.eq("secRole", aRole));
        criteria.add(Restrictions.eq("secGroup", aGroup));

        return (SecRolegroup) DataAccessUtils.uniqueResult(getHibernateTemplate().findByCriteria(criteria));

    }

    @Override
    public boolean isGroupInRole(SecGroup aGroup, SecRole aRole) {
        DetachedCriteria criteria = DetachedCriteria.forClass(SecRolegroup.class);
        criteria.add(Restrictions.eq("secGroup", aGroup));
        criteria.add(Restrictions.eq("secRole", aRole));
        criteria.setProjection(Projections.rowCount());

        int count = DataAccessUtils.intResult(getHibernateTemplate().findByCriteria(criteria));
        return count > 0;
    }

    @Override
    public int getCountAllSecRolegroups() {
        return DataAccessUtils.intResult(getHibernateTemplate().find("select count(*) from SecRolegroup"));
    }
}