org.jutil.predicate
Class NotNull

java.lang.Object
  |
  +--org.jutil.predicate.AbstractPredicate
        |
        +--org.jutil.predicate.TotalPredicate
              |
              +--org.jutil.predicate.PrimitiveTotalPredicate
                    |
                    +--org.jutil.predicate.NotNull

All Implemented Interfaces:

CollectionOperator, Predicate

public class NotNull

extends PrimitiveTotalPredicate

A special total predicate that checks whether or not objects are different from null.

Field Summary
static java.lang.String	CVS_REVISION

 

Constructor Summary

NotNull()

 

Method Summary
boolean	eval(java.lang.Object object)           Evaluate this Predicate for the given object.

 

Methods inherited from class org.jutil.predicate.PrimitiveTotalPredicate

getSubPredicates, nbSubPredicates

 

Methods inherited from class org.jutil.predicate.TotalPredicate

count, exists, filter, forall, isValidElement

 

Methods inherited from class org.jutil.predicate.AbstractPredicate

equals

 

Methods inherited from class java.lang.Object

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

 

Field Detail

CVS_REVISION

public static final java.lang.String CVS_REVISION

NotNull

public NotNull()

eval

public boolean eval(java.lang.Object object)

Description copied from interface: Predicate

Evaluate this Predicate for the given object.

Specifications:

     also

public behavior
ensures \result == (object == null);

Specifications inherited from overridden method in class TotalPredicate:

     also

public behavior
signals (Exception) false;

Specifications inherited from overridden method in interface Predicate:

public behavior
ensures \result == true|\result == false;
signals (Exception) !isValidElement(object);