Package org.apache.wicket.markup.head.filter

Class OppositeHeaderResponseFilter

java.lang.Object

org.apache.wicket.markup.head.filter.OppositeHeaderResponseFilter

All Implemented Interfaces:

Predicate<HeaderItem>, FilteringHeaderResponse.IHeaderResponseFilter

public class OppositeHeaderResponseFilter
extends Object
implements FilteringHeaderResponse.IHeaderResponseFilter

A filter that takes another filter and always returns the opposite of another filter. This is useful where you have two filters (i.e. one for header and one for footer) and want to ensure that nothing ever has false returned for both cases.

Author:

Jeremy Thomerson

Constructor Summary

Constructors

Constructor	Description
OppositeHeaderResponseFilter(String name, FilteringHeaderResponse.IHeaderResponseFilter other)	Construct.

Method Summary

Modifier and Type	Method	Description
boolean	accepts(HeaderItem item)	Determines whether a given HeaderItem should be rendered in the bucket represented by this filter.
String	getName()

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.wicket.markup.head.filter.FilteringHeaderResponse.IHeaderResponseFilter

test

Methods inherited from interface java.util.function.Predicate

and, negate, or

Constructor Detail

OppositeHeaderResponseFilter

public OppositeHeaderResponseFilter(String name,
                                    FilteringHeaderResponse.IHeaderResponseFilter other)

Construct.

Parameters:

name - the name used by this filter for its bucket o' stuff

other - the other filter to return the opposite of

Method Detail

getName

public String getName()

Specified by:

getName in interface FilteringHeaderResponse.IHeaderResponseFilter

Returns:

name of the filter (used by the container that renders these resources)

accepts

public boolean accepts(HeaderItem item)

Description copied from interface: FilteringHeaderResponse.IHeaderResponseFilter

Determines whether a given HeaderItem should be rendered in the bucket represented by this filter.

Specified by:

accepts in interface FilteringHeaderResponse.IHeaderResponseFilter

Parameters:

item - the item to be rendered

Returns:

true if it should be bucketed with other things in this filter