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annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/context/SessionCallContextListener.java @ 308:084995dd1c9c

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Added a session holder to hold hibernate sessions. flys-artifacts/trunk@1689 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Sascha L. Teichmann <sascha.teichmann@intevation.de>
date Thu, 14 Apr 2011 12:08:47 +0000
parents 84f8462790cb
children 6d2c8915e22c
rev   line source
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84f8462790cb Added an Implementation of CallContext.Listener to open/close Hibernate Sessions for each request.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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1 package de.intevation.flys.artifacts.context;
84f8462790cb Added an Implementation of CallContext.Listener to open/close Hibernate Sessions for each request.
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2
84f8462790cb Added an Implementation of CallContext.Listener to open/close Hibernate Sessions for each request.
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3 import org.apache.log4j.Logger;
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4
84f8462790cb Added an Implementation of CallContext.Listener to open/close Hibernate Sessions for each request.
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5 import org.hibernate.Session;
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84f8462790cb Added an Implementation of CallContext.Listener to open/close Hibernate Sessions for each request.
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7 import de.intevation.artifacts.CallContext;
84f8462790cb Added an Implementation of CallContext.Listener to open/close Hibernate Sessions for each request.
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8 import de.intevation.artifacts.CallContext.Listener;
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9
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084995dd1c9c Added a session holder to hold hibernate sessions.
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10 import de.intevation.flys.artifacts.model.SessionHolder;
084995dd1c9c Added a session holder to hold hibernate sessions.
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11
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12
84f8462790cb Added an Implementation of CallContext.Listener to open/close Hibernate Sessions for each request.
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13 /**
84f8462790cb Added an Implementation of CallContext.Listener to open/close Hibernate Sessions for each request.
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14 * This CallContextListener is used to initialize a ThreadLocal variable in
84f8462790cb Added an Implementation of CallContext.Listener to open/close Hibernate Sessions for each request.
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15 * each CallContext (for each request) that holds Sessions.
84f8462790cb Added an Implementation of CallContext.Listener to open/close Hibernate Sessions for each request.
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16 *
84f8462790cb Added an Implementation of CallContext.Listener to open/close Hibernate Sessions for each request.
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17 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
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18 */
84f8462790cb Added an Implementation of CallContext.Listener to open/close Hibernate Sessions for each request.
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19 public class SessionCallContextListener implements Listener {
84f8462790cb Added an Implementation of CallContext.Listener to open/close Hibernate Sessions for each request.
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20
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21 public static final String SESSION_KEY = "context.session";
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23 /** The logger that is used in this class.*/
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24 private static Logger logger =
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25 Logger.getLogger(SessionCallContextListener.class);
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84f8462790cb Added an Implementation of CallContext.Listener to open/close Hibernate Sessions for each request.
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84f8462790cb Added an Implementation of CallContext.Listener to open/close Hibernate Sessions for each request.
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28 public SessionCallContextListener() {
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29 }
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30
84f8462790cb Added an Implementation of CallContext.Listener to open/close Hibernate Sessions for each request.
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31
84f8462790cb Added an Implementation of CallContext.Listener to open/close Hibernate Sessions for each request.
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32 /**
84f8462790cb Added an Implementation of CallContext.Listener to open/close Hibernate Sessions for each request.
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33 * Initializes a ThreadLocal variable that is used to hold sessions.
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34 *
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35 * @param context The CallContext.
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36 */
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37 public void init(CallContext context) {
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38 logger.debug("SessionCallContextListener.init");
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40 Session session = SessionHolder.acquire();
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42 context.putContextValue(SESSION_KEY, session);
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43 }
84f8462790cb Added an Implementation of CallContext.Listener to open/close Hibernate Sessions for each request.
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84f8462790cb Added an Implementation of CallContext.Listener to open/close Hibernate Sessions for each request.
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45
84f8462790cb Added an Implementation of CallContext.Listener to open/close Hibernate Sessions for each request.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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46 /**
84f8462790cb Added an Implementation of CallContext.Listener to open/close Hibernate Sessions for each request.
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47 * Closes open sessions of the ThreadLocal variable opened in init().
84f8462790cb Added an Implementation of CallContext.Listener to open/close Hibernate Sessions for each request.
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48 *
84f8462790cb Added an Implementation of CallContext.Listener to open/close Hibernate Sessions for each request.
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49 * @param context The CallContext.
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50 */
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51 public void close(CallContext context) {
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52 logger.debug("SessionCallContextListener.close");
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53
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54 Session session = (Session)context.getContextValue(SESSION_KEY);
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55 session.close();
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57 SessionHolder.release();
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58 }
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59 }
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60 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :
http://dive4elements.wald.intevation.org