Mercurial > dive4elements > river

annotate flys-backend/src/main/java/de/intevation/flys/backend/SessionHolder.java @ 4254:33b15ac17fd1

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Only create and add GaugePanel when necessary The GaugePanel isn't created always and only show if WINFO and a river is selected now. It is only created on demand. Therefore all access to the GaugePanel is abstraced via methods that check if the GaugePanel is null before accessing it's methods.
author Björn Ricks <bjoern.ricks@intevation.de>
date Thu, 25 Oct 2012 13:58:53 +0200
parents 76c75c8b9ee0
children
rev   line source
466
8bd50b41dea6 Moved the SessionHolder from flys-artifacts to flys-backend.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
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1 package de.intevation.flys.backend;
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2
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3 import org.apache.log4j.Logger;
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4
8bd50b41dea6 Moved the SessionHolder from flys-artifacts to flys-backend.
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5 import org.hibernate.Session;
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6 import org.hibernate.SessionFactory;
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7
8bd50b41dea6 Moved the SessionHolder from flys-artifacts to flys-backend.
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8
8bd50b41dea6 Moved the SessionHolder from flys-artifacts to flys-backend.
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9 public class SessionHolder
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10 {
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76c75c8b9ee0 SedDB: Make access to SedDB configurable over conf.xml and provide access to sessions.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 466
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11 private static Logger log =
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8bd50b41dea6 Moved the SessionHolder from flys-artifacts to flys-backend.
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parents:
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12 Logger.getLogger(SessionHolder.class);
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13
8bd50b41dea6 Moved the SessionHolder from flys-artifacts to flys-backend.
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14 public static final ThreadLocal<Session> HOLDER =
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15 new ThreadLocal<Session>() {
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76c75c8b9ee0 SedDB: Make access to SedDB configurable over conf.xml and provide access to sessions.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 466
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16 @Override
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17 protected Session initialValue() {
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18 return create();
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19 }
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20 };
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21
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22 private SessionHolder() {
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23 }
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24
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25 public synchronized static Session create() {
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76c75c8b9ee0 SedDB: Make access to SedDB configurable over conf.xml and provide access to sessions.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 466
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26 log.debug("create");
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27 SessionFactory sessionFactory =
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28 SessionFactoryProvider.getSessionFactory();
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29 return sessionFactory.openSession();
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30 }
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31
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32 public static Session acquire() {
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76c75c8b9ee0 SedDB: Make access to SedDB configurable over conf.xml and provide access to sessions.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 466
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33 log.debug("acquire");
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34 Session session = create();
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35 HOLDER.set(session);
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36 return session;
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37 }
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38
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39 public static void release() {
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76c75c8b9ee0 SedDB: Make access to SedDB configurable over conf.xml and provide access to sessions.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 466
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40 log.debug("release");
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41 HOLDER.remove();
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42 }
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43 }
8bd50b41dea6 Moved the SessionHolder from flys-artifacts to flys-backend.
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44 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org