org.mentawai.filter
Class MethodParamFilter

java.lang.Object
  extended by org.mentawai.filter.MethodParamFilter
All Implemented Interfaces:
Filter

public class MethodParamFilter
extends Object
implements Filter

This filter will place a java.util.List with the action input keys we want to use as the parameters of a Pojo Action method. It simply takes the list of params passed, create a list with them, and place this list in the action input with the PARAM_KEY key value, so that it can be later accessed by the InvocationChain.

Author:
Sergio Oliveira Jr

Field Summary
static String PARAM_KEY
           
 
Constructor Summary
MethodParamFilter(String... params)
           
 
Method Summary
 void destroy()
          Gives a chance to the filter to deallocalte any resources before it is destroyed.
 String filter(InvocationChain chain)
          Executes the filter.
 String toString()
           
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Field Detail

PARAM_KEY

public static String PARAM_KEY
Constructor Detail

MethodParamFilter

public MethodParamFilter(String... params)
Method Detail

filter

public String filter(InvocationChain chain)
              throws Exception
Description copied from interface: Filter
Executes the filter.

Specified by:
filter in interface Filter
Parameters:
chain - The InvocationChain for the action this filter is being applied to.
Returns:
The result of the filter or the action the filter is being applied to.
Throws:
Exception

destroy

public void destroy()
Description copied from interface: Filter
Gives a chance to the filter to deallocalte any resources before it is destroyed. This is called when the web application is stopped, in other words, this has nothing to do with garbage collection.

Specified by:
destroy in interface Filter

toString

public String toString()
Overrides:
toString in class Object


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