Package org.openbravo.dal.core

Class DalRequestFilter

java.lang.Object

org.openbravo.dal.core.DalRequestFilter

All Implemented Interfaces:

javax.servlet.Filter

public class DalRequestFilter
extends Object
implements javax.servlet.Filter

The DalRequestFilter ensures that the request thread is handled inside of a DalThreadHandler this ensures that all requests are handled within a transaction which is committed or rolled back at the end of the request.

This request filter also initializes the Dal layer (see the DalLayerInitializer). Although this is not required (session factory initialization is done automatically at first database access), it is better for test/debug purposes to do the initialization here. The DalRequestFilter is enabled by setting it in the web.xml file: <filter> <filter-name>dalFilter</filter-name> <filter-class>org.openbravo.dal.core.DalRequestFilter</filter-class> </filter> <filter-mapping> <filter-name>dalFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> Note the url-pattern can be defined more strictly if it is possible to identify the pages which require a session/transaction.

Author:

mtaal

Constructor Summary

Constructors

Constructor	Description
DalRequestFilter()

Method Summary

Modifier and Type	Method	Description
void	destroy()
void	doFilter(javax.servlet.ServletRequest request, javax.servlet.ServletResponse response, javax.servlet.FilterChain chain)
void	init(javax.servlet.FilterConfig fConfig)

Methods inherited from class java.lang.Object

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

Constructor Detail

DalRequestFilter

public DalRequestFilter()

Method Detail

init

public void init(javax.servlet.FilterConfig fConfig)
          throws javax.servlet.ServletException

Specified by:

init in interface javax.servlet.Filter

Throws:

javax.servlet.ServletException

destroy

public void destroy()

Specified by:

destroy in interface javax.servlet.Filter

doFilter

public void doFilter(javax.servlet.ServletRequest request,
                     javax.servlet.ServletResponse response,
                     javax.servlet.FilterChain chain)
              throws IOException,
                     javax.servlet.ServletException

Specified by:

doFilter in interface javax.servlet.Filter

Throws:

IOException

javax.servlet.ServletException