view flys-backend/src/main/java/de/intevation/flys/backend/SessionHolder.java @ 4269:0c766c475805

Add Panel and Tree UI classes for dispayling the measurement station info The new ui classes are using the new extracted base class InfoPanel and InfoTree which are in common with the gauge info.
author Björn Ricks <bjoern.ricks@intevation.de>
date Fri, 26 Oct 2012 12:22:06 +0200
parents 76c75c8b9ee0
children
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package de.intevation.flys.backend;

import org.apache.log4j.Logger;

import org.hibernate.Session;
import org.hibernate.SessionFactory;


public class SessionHolder
{
    private static Logger log =
        Logger.getLogger(SessionHolder.class);

    public static final ThreadLocal<Session> HOLDER =
        new ThreadLocal<Session>() {
            @Override
            protected Session initialValue() {
                return create();
            }
        };

    private SessionHolder() {
    }

    public synchronized static Session create() {
        log.debug("create");
        SessionFactory sessionFactory =
            SessionFactoryProvider.getSessionFactory();
        return sessionFactory.openSession();
    }

    public static Session acquire() {
        log.debug("acquire");
        Session session = create();
        HOLDER.set(session);
        return session;
    }

    public static void release() {
        log.debug("release");
        HOLDER.remove();
    }
}
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