com.opensymphony.xwork.interceptor
Class MethodFilterInterceptor

java.lang.Object
  com.opensymphony.xwork.interceptor.MethodFilterInterceptor

All Implemented Interfaces:

Interceptor, Serializable

Direct Known Subclasses:

DefaultWorkflowInterceptor, ValidationInterceptor

public abstract class MethodFilterInterceptor

extends Object

implements Interceptor

An abstract Interceptor that is applied to selectively according to specified included/excluded method lists.

Setable parameters are as follows:

• excludeMethods - methods name to be excluded
• includeMethods - methods name to be included

NOTE: If method name are available in both includeMethods and excludeMethods, it will still be considered as an included method. In short includeMethods takes precedence over excludeMethods.

Interceptors that extends this capability would be :-

• TokenInterceptor
• TokenSessionStoreInterceptor
• DefaultWorkflowInterceptor
• ValidationInterceptor

Version:

$Date: 2006-05-15 09:42:45 +0200 (Mon, 15 May 2006) $ $Id: MethodFilterInterceptor.java 1017 2006-05-15 09:42:45 +0200 (Mon, 15 May 2006) tmjee $

Author:

Alexandru Popescu, Rainer Hermanns

See Also:

com.opensymphony.webwork.interceptor.TokenInterceptor, com.opensymphony.webwork.interceptor.TokenSessionStoreInterceptor, DefaultWorkflowInterceptor, ValidationInterceptor, Serialized Form

Field Summary

protected Set	excludeMethods
protected Set	includeMethods
protected org.apache.commons.logging.Log	log

Constructor Summary

MethodFilterInterceptor()

Method Summary

protected boolean	applyInterceptor(ActionInvocation invocation)
void	destroy() Called to let an interceptor clean up any resources it has allocated.
protected abstract String	doIntercept(ActionInvocation invocation) Subclasses must override to implement the interceptor logic.
Set	getExcludeMethodsSet()
Set	getIncludeMethodsSet()
void	init() Called after an interceptor is created, but before any requests are processed using intercept , giving the Interceptor a chance to initialize any needed resources.
String	intercept(ActionInvocation invocation) Allows the Interceptor to do some processing on the request before and/or after the rest of the processing of the request by the ActionInvocation or to short-circuit the processing and just return a String return code.
void	setExcludeMethods(String excludeMethods)
void	setIncludeMethods(String includeMethods)

Methods inherited from class java.lang.Object

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

Field Detail

log

protected transient org.apache.commons.logging.Log log

excludeMethods

protected Set excludeMethods

includeMethods

protected Set includeMethods

Constructor Detail

MethodFilterInterceptor

public MethodFilterInterceptor()

Method Detail

setExcludeMethods

public void setExcludeMethods(String excludeMethods)

getExcludeMethodsSet

public Set getExcludeMethodsSet()

setIncludeMethods

public void setIncludeMethods(String includeMethods)

getIncludeMethodsSet

public Set getIncludeMethodsSet()

intercept

public String intercept(ActionInvocation invocation)
                 throws Exception

Description copied from interface: Interceptor

Allows the Interceptor to do some processing on the request before and/or after the rest of the processing of the request by the ActionInvocation or to short-circuit the processing and just return a String return code.

Specified by:

intercept in interface Interceptor

Returns:

the return code, either returned from ActionInvocation.invoke(), or from the interceptor itself.

Throws:

Exception - any system-level error, as defined in Action.execute().

applyInterceptor

protected boolean applyInterceptor(ActionInvocation invocation)

doIntercept

protected abstract String doIntercept(ActionInvocation invocation)
                               throws Exception

Subclasses must override to implement the interceptor logic.

Parameters:

invocation - the action invocation

Returns:

the result of invocation

Throws:

Exception

destroy

public void destroy()

Description copied from interface: Interceptor

Called to let an interceptor clean up any resources it has allocated.

Specified by:

destroy in interface Interceptor

init

public void init()

Description copied from interface: Interceptor

Called after an interceptor is created, but before any requests are processed using intercept , giving the Interceptor a chance to initialize any needed resources.

Specified by:

init in interface Interceptor