edu.emory.library.tast.dm.Dictionary.java Source code

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Here is the source code for edu.emory.library.tast.dm.Dictionary.java

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/*
Copyright 2010 Emory University
       
   This file is part of Trans-Atlantic Slave Voyages.
       
   Trans-Atlantic Slave Voyages 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.
       
   Trans-Atlantic Slave Voyages 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 Trans-Atlantic Slave Voyages.  If not, see <http://www.gnu.org/licenses/>. 
*/
package edu.emory.library.tast.dm;

import java.util.List;

import org.hibernate.Session;
import org.hibernate.Transaction;
import org.hibernate.criterion.Order;
import org.hibernate.criterion.Restrictions;

import edu.emory.library.tast.db.HibernateConn;

/**
 * Superclass for any dictionary in the application.
 * @author Pawel Jurczyk
 *
 */
public abstract class Dictionary {

    private Long id;
    private String name;

    public Long getId() {
        return id;
    }

    public void setId(Long id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String toString() {
        return name;
    }

    public boolean equals(Object that) {
        if (that instanceof Dictionary) {
            Dictionary dict = (Dictionary) that;
            return dict.getId().equals(this.getId());
        }
        return false;
    }

    public int hashCode() {
        return id.hashCode();
    }

    public static List loadAll(Class clazz, Session sess) {
        return loadAll(clazz, sess, "id");
    }

    public static List loadAll(Class clazz, Session sess, String orderBy) {

        boolean sessionProvided = sess != null;
        Transaction transaction = null;
        if (!sessionProvided) {
            sess = HibernateConn.getSession();
            transaction = sess.beginTransaction();
        }

        List rigs = sess.createCriteria(clazz).addOrder(Order.asc(orderBy)).add(Restrictions.ne("name", "hidden"))
                .list();

        if (!sessionProvided) {
            transaction.commit();
            sess.close();
        }

        return rigs;

    }

    public static Object loadById(Class clazz, Session sess, String idStr) {
        if (idStr == null) {
            return null;
        } else {
            long id;
            try {
                id = Long.parseLong(idStr);
            } catch (NumberFormatException nfe) {
                return null;
            }
            return loadById(clazz, sess, id);
        }
    }

    public static List loadByIds(Class clazz, Session sess, Long ids[], String orderBy) {

        boolean sessionProvided = sess != null;
        Transaction transaction = null;
        if (!sessionProvided) {
            sess = HibernateConn.getSession();
            transaction = sess.beginTransaction();
        }

        List list = sess.createCriteria(clazz).add(Restrictions.in("id", ids)).addOrder(Order.asc(orderBy)).list();

        if (!sessionProvided) {
            transaction.commit();
            sess.close();
        }

        return list;

    }

    public static Object loadById(Class clazz, Session sess, long id) {

        boolean sessionProvided = sess != null;
        Transaction transaction = null;
        if (!sessionProvided) {
            sess = HibernateConn.getSession();
            transaction = sess.beginTransaction();
        }

        List list = sess.createCriteria(clazz).add(Restrictions.eq("id", new Long(id))).setCacheable(true).list();
        Object dictItem = null;
        if (list == null || list.size() == 0) {
            dictItem = null;
        } else {
            dictItem = list.get(0);
        }

        if (!sessionProvided) {
            transaction.commit();
            sess.close();
        }

        return dictItem;

    }

}