org.springframework.ldap.filter
Class PresentFilter

java.lang.Object
  org.springframework.ldap.filter.AbstractFilter
      org.springframework.ldap.filter.PresentFilter

All Implemented Interfaces:

Filter

public class PresentFilter
extends AbstractFilter

Filter that allows the user to check for the existence of a attribute. For an attribute to be 'present' it must contain a value. Attributes that do not contain a value are 'NOT present'. To filter on attributes that are 'NOT present' use the NotPresentFilter or use this filter in combination with a NotFilter .

 PresentFilter filter = new PresentFilter("foo");
 System.out.println(filter.encode());
 

would result in:

  (foo=*)
 

Author:

Jordan Hein

Constructor Summary

PresentFilter(String attribute)
Creates a new instance of a present filter for a particular attribute.

Method Summary

StringBuffer	encode(StringBuffer buff) Encodes the filter to a StringBuffer.
boolean	equals(Object o) All filters must implement equals.
int	hashCode() All filters must implement hashCode.

Methods inherited from class org.springframework.ldap.filter.AbstractFilter

encode, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

PresentFilter

public PresentFilter(String attribute)

Creates a new instance of a present filter for a particular attribute.

Parameters:

attribute - the attribute expected to be present (ie, contains a value).

Method Detail

encode

public StringBuffer encode(StringBuffer buff)

Description copied from interface: Filter

Encodes the filter to a StringBuffer.

Specified by:

encode in interface Filter

Specified by:

encode in class AbstractFilter

Parameters:

buff - The StringBuffer to encode the filter to

Returns:

The same StringBuffer as was given

equals

public boolean equals(Object o)

Description copied from interface: Filter

All filters must implement equals.

Specified by:

equals in interface Filter

Overrides:

equals in class Object

Returns:

true if the objects are equal.

hashCode

public int hashCode()

Description copied from interface: Filter

All filters must implement hashCode.

Specified by:

hashCode in interface Filter

Overrides:

hashCode in class Object

Returns:

the hash code according to the contract in Object.hashCode()