net.databinder.hib
Class DataRequestCycle

java.lang.Object
  org.apache.wicket.RequestCycle
      org.apache.wicket.protocol.http.WebRequestCycle
          net.databinder.ExceptionFilteringRequestCycle
              net.databinder.CookieRequestCycle
                  net.databinder.hib.DataRequestCycle

All Implemented Interfaces:

HibernateRequestCycle

Direct Known Subclasses:

DataConversationRequestCycle

public class DataRequestCycle
extends CookieRequestCycle
implements HibernateRequestCycle

Opens Hibernate sessions and transactions as required and closes them at a request's end. Uncomitted transactions are rolled back. Uses keyed Hibernate session factories from Databinder service.

Author:

Nathan Hamblen

See Also:

Databinder

Field Summary

protected java.util.HashSet<java.lang.Object>

keys Keys for session factories that have been opened for this request

Fields inherited from class org.apache.wicket.RequestCycle

application, processor, request, response

Constructor Summary

DataRequestCycle(org.apache.wicket.protocol.http.WebApplication application, org.apache.wicket.protocol.http.WebRequest request, org.apache.wicket.Response response)

Method Summary

protected void	closeSession(java.lang.Object key) Roll back active transactions and close session.
void	dataSessionRequested(java.lang.Object key) Called by DataStaticService when a session is needed and does not already exist.
protected void	onEndRequest() Closes all Hibernate sessions opened for this request.
org.apache.wicket.Page	onRuntimeException(org.apache.wicket.Page page, java.lang.RuntimeException e) Closes and reopens sessions for this request cycle.
protected org.hibernate.classic.Session	openHibernateSession(java.lang.Object key) Open a session and begin a transaction for the keyed session factory.

Methods inherited from class net.databinder.CookieRequestCycle

applyScope, clearCookie, getCookie, getCookies

Methods inherited from class net.databinder.ExceptionFilteringRequestCycle

logRuntimeException, setWarnOnlySource

Methods inherited from class org.apache.wicket.protocol.http.WebRequestCycle

getProcessor, getWebRequest, getWebResponse, getWebSession, isRedirect, newClientInfo, redirectTo

Methods inherited from class org.apache.wicket.RequestCycle

detach, get, getApplication, getClientInfo, getMetaData, getOriginalResponse, getPageParameters, getRedirect, getRequest, getRequestTarget, getResponse, getResponsePage, getResponsePageClass, getSession, getStartTime, isUrlForNewWindowEncoding, onBeginRequest, request, request, request, set, setAutomaticallyClearFeedbackMessages, setMetaData, setRedirect, setRequest, setRequestTarget, setResponse, setResponsePage, setResponsePage, setResponsePage, setResponsePage, setUrlForNewWindowEncoding, toString, urlFor, urlFor, urlFor, urlFor, urlFor, urlFor, urlFor, urlFor, urlFor, wasHandled

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

keys

protected java.util.HashSet<java.lang.Object> keys

Keys for session factories that have been opened for this request

Constructor Detail

DataRequestCycle

public DataRequestCycle(org.apache.wicket.protocol.http.WebApplication application,
                        org.apache.wicket.protocol.http.WebRequest request,
                        org.apache.wicket.Response response)

Method Detail

closeSession

protected void closeSession(java.lang.Object key)

Roll back active transactions and close session.

dataSessionRequested

public void dataSessionRequested(java.lang.Object key)

Called by DataStaticService when a session is needed and does not already exist. Opens a new thread-bound Hibernate session.

Specified by:

dataSessionRequested in interface HibernateRequestCycle

openHibernateSession

protected org.hibernate.classic.Session openHibernateSession(java.lang.Object key)

Open a session and begin a transaction for the keyed session factory.

Parameters:

key - object, or null for the default factory

Returns:

newly opened session

onEndRequest

protected void onEndRequest()

Closes all Hibernate sessions opened for this request. If a transaction has not been committed, it will be rolled back before closing the session.

Overrides:

onEndRequest in class org.apache.wicket.RequestCycle

See Also:

DataForm.onSubmit()

onRuntimeException

public org.apache.wicket.Page onRuntimeException(org.apache.wicket.Page page,
                                                 java.lang.RuntimeException e)

Closes and reopens sessions for this request cycle. Unrelated models may try to load themselves after this point.

Overrides:

onRuntimeException in class org.apache.wicket.RequestCycle