Package com.avoka.fc.core.servlet

Class DataContextFilter

java.lang.Object

com.avoka.fc.core.servlet.DataContextFilter

All Implemented Interfaces:

Filter

public class DataContextFilter
extends Object
implements Filter

Provides a servlet filter which binds DataContext objects to the request.

Field Summary

Fields

Modifier and Type	Field	Description
protected org.slf4j.Logger	logger	The DataContextFilter logger.
protected ServletContext	servletContext

Constructor Summary

Constructors

Constructor	Description
DataContextFilter()

Method Summary

Modifier and Type	Method	Description
void	destroy()	Destroy the DataContextFilter.
void	doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain chain)	This filter binds the session DataContext to the current thread, and removes the DataContext from the thread once the chained request has completed.
void	init(FilterConfig config)	Initialize the Cayenne runtime.

Methods inherited from class java.lang.Object

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

Field Detail

logger

protected org.slf4j.Logger logger

The DataContextFilter logger.

servletContext

protected ServletContext servletContext

Constructor Detail

DataContextFilter

public DataContextFilter()

Method Detail

init

public void init(FilterConfig config)
          throws ServletException

Initialize the Cayenne runtime.

Specified by:

init in interface Filter

Parameters:

config - the filter configuration

Throws:

ServletException - if an initialization error occurs

See Also:

Filter.init(FilterConfig)

destroy

public void destroy()

Destroy the DataContextFilter.

Specified by:

destroy in interface Filter

See Also:

Filter.destroy()

doFilter

public void doFilter(ServletRequest servletRequest,
                     ServletResponse servletResponse,
                     FilterChain chain)
              throws IOException,
                     ServletException

This filter binds the session DataContext to the current thread, and removes the DataContext from the thread once the chained request has completed.

Specified by:

doFilter in interface Filter

Parameters:

servletRequest - the servlet request

servletResponse - the servlet response

chain - the filter chain

Throws:

IOException - if an I/O error occurs

ServletException - if a servlet error occurs

See Also:

Filter.doFilter(ServletRequest, ServletResponse, FilterChain)