org.mentawai.filter
Class CollectionFilter

java.lang.Object
  org.mentawai.filter.CollectionFilter

All Implemented Interfaces:

Filter

public class CollectionFilter
extends java.lang.Object
implements Filter

Constructor Summary

CollectionFilter(java.lang.String attrName)

CollectionFilter(java.lang.String attrName, int maxAllowed)

Method Summary

protected java.util.Collection<java.lang.Object>	buildCollection(java.lang.Object[] list, int max)
void	destroy() Gives a chance to the filter to deallocalte any resources before it is destroyed.
java.lang.String	filter(InvocationChain chain) Executes the filter.
protected int	parseNumberFromKey(java.lang.String attrName, java.lang.String key)

Methods inherited from class java.lang.Object

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

Constructor Detail

CollectionFilter

public CollectionFilter(java.lang.String attrName)

CollectionFilter

public CollectionFilter(java.lang.String attrName,
                        int maxAllowed)

Method Detail

filter

public java.lang.String filter(InvocationChain chain)
                        throws java.lang.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:

java.lang.Exception

buildCollection

protected java.util.Collection<java.lang.Object> buildCollection(java.lang.Object[] list,
                                                                 int max)

parseNumberFromKey

protected int parseNumberFromKey(java.lang.String attrName,
                                 java.lang.String key)
                          throws java.lang.NumberFormatException

Throws:

java.lang.NumberFormatException

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