net.jforum.repository.CategoryDao.java Source code

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Here is the source code for net.jforum.repository.CategoryDao.java

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/*
 * Copyright (c) JForum Team. All rights reserved.
 *
 * The software in this package is published under the terms of the LGPL
 * license a copy of which has been included with this distribution in the
 * license.txt file.
 *
 * The JForum Project
 * http://www.jforum.net
 */
package net.jforum.repository;

import net.jforum.entities.Category;
import net.jforum.entities.Forum;
import org.hibernate.Session;
import org.hibernate.criterion.Order;
import org.hibernate.criterion.Projections;
import org.hibernate.criterion.Restrictions;
import org.springframework.stereotype.Repository;

import java.util.List;

/**
 * @author Rafael Steil
 */
@Repository
public class CategoryDao extends HibernateGenericDAO<Category> implements Dao<Category> {
    public CategoryDao(Session session) {
        super(session);
    }

    @SuppressWarnings("unchecked")
    public List<Forum> getForums(Category category) {
        return session.createCriteria(Forum.class).add(Restrictions.eq("category", category))
                .addOrder(Order.asc("displayOrder")).setCacheable(true).setCacheRegion("categoryDAO.getForums")
                .setComment("categoryDAO.getForums").list();
    }

    @Override
    public void add(Category entity) {
        entity.setDisplayOrder(this.getMaxDisplayOrder());
        super.add(entity);
    }

    @SuppressWarnings("unchecked")
    public List<Category> getAllCategories() {
        return session.createCriteria(this.persistClass).addOrder(Order.asc("displayOrder")).setCacheable(true)
                .setCacheRegion("categoryDAO.getAllCategories").setComment("categoryDAO.getAllCategories").list();
    }

    private int getMaxDisplayOrder() {
        Integer displayOrder = (Integer) session.createCriteria(this.persistClass)
                .setProjection(Projections.max("displayOrder")).uniqueResult();

        return displayOrder == null ? 1 : displayOrder + 1;
    }
}