Package org.springframework.ldap.filter

Class NotPresentFilter

java.lang.Object
org.springframework.ldap.filter.AbstractFilter
org.springframework.ldap.filter.NotPresentFilter
All Implemented Interfaces:
Filter
public class NotPresentFilter extends AbstractFilter
A convenience class that combines NOT behavior with present behavior to allow the user to check for the non-existence of a attribute. For an attribute to be NOT present it must not have any values set. To filter on attributes at are present use the PresentFilter. 
 NotPresentFilter filter = new NotPresentFilter("foo");
 System.out.println(filter.encode());
would result in: 
  (!(foo=*))

  • Constructor Details

    • NotPresentFilter

      public NotPresentFilter(String attribute)
      Creates a new instance of a not present filter for a particular attribute.
      Parameters:
      attribute - the attribute expected to be not-present (ie, unset, or null).

  • Method Details

    • encode

      public StringBuffer encode(StringBuffer buff)
      Description copied from interface: Filter
      Encodes the filter to a StringBuffer.
      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()