org.jjoost.util.filters
Class AcceptIfNull<E>

java.lang.Object
  org.jjoost.util.filters.AcceptIfNull<E>

All Implemented Interfaces:

java.io.Serializable, Filter<E>

public class AcceptIfNull<E>
extends java.lang.Object
implements Filter<E>

A filter accepting only values that are null

Author:

b.elliottsmith

See Also:

Serialized Form

Constructor Summary

AcceptIfNull()

Method Summary

boolean	accept(E test) Returns true if the Filter accepts the parameter and false otherwise
static <E> AcceptIfNull<E>	get() Returns a filter accepting only values that are null
java.lang.String	toString()

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

AcceptIfNull

public AcceptIfNull()

Method Detail

accept

public boolean accept(E test)

Description copied from interface: Filter

Returns true if the Filter accepts the parameter and false otherwise

Specified by:

accept in interface Filter<E>

Parameters:

test - value to test

Returns:

true if the filter accepts test; false otherwise

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

get

public static <E> AcceptIfNull<E> get()

Returns a filter accepting only values that are null

Returns:

a filter accepting only values that are null