org.talika.tarsis.filters
Class CommandFilter

java.lang.Object
  org.talika.tarsis.filters.AbstractFilter
      org.talika.tarsis.filters.CommandFilter

All Implemented Interfaces:

javax.servlet.Filter

Direct Known Subclasses:

CacheFilter, DuplicateRequestFilter, IsSecureFilter, LoginFilter, SecurityFilter, ValidatorFilter

public abstract class CommandFilter

extends AbstractFilter

Base Filter implementation for all command aware filters.

Version:

$Revision: 133 $

Author:

Jose M. Palomar

Constructor Summary

CommandFilter()

Method Summary

void	destroy() Called by the web container to indicate to a filter that it is being taken out of service.
protected Command	findCommand(javax.servlet.ServletRequest request) Returns Command instance for current request.
protected CommandFactory	getCommandFactory() Returns command factory instance.
void	init(javax.servlet.FilterConfig filterConfig) Called by the web container to indicate to a filter that it is being placed into service.

Methods inherited from class org.talika.tarsis.filters.AbstractFilter

doFilter, getContext, getFilterConfig, getLogger

Methods inherited from class java.lang.Object

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

Constructor Detail

CommandFilter

public CommandFilter()

Method Detail

init

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

Called by the web container to indicate to a filter that it is being placed into service.

Initialization consits in calling super init method and storing in a local variable command factory instance for further use.

Specified by:

init in interface javax.servlet.Filter

Overrides:

init in class AbstractFilter

Parameters:

filterConfig - FilterConfig filter configutarion.

Throws:

javax.servlet.ServletException - if an exception has occurred that interferes with the filter's normal operation

See Also:

Filter.init(FilterConfig)

destroy

public void destroy()

Called by the web container to indicate to a filter that it is being taken out of service.

Specified by:

destroy in interface javax.servlet.Filter

Overrides:

destroy in class AbstractFilter

See Also:

Filter.destroy()

findCommand

protected final Command findCommand(javax.servlet.ServletRequest request)

Returns Command instance for current request.

Parameters:

request - ServletRequest the ServletResponse object that contains the servlet's response.

Returns:

Command Command instance for current request or null if no command is found.

getCommandFactory

protected final CommandFactory getCommandFactory()

Returns command factory instance.

Returns:

CommandFactory command factory instance.