org.springframework.rules.constraint
Class Not

java.lang.Object
  org.springframework.rules.constraint.Not

All Implemented Interfaces:

Constraint

Direct Known Subclasses:

NegatedPropertyConstraint

public class Not
extends Object
implements Constraint

"Nots" another unary constraint (the inverse) by using composition.

Author:

Keith Donald

Constructor Summary

Not()
Creates a UnaryNot in temporary invalid state - please use only if you have to, the well-formed constructor is much preferred.

Not(Constraint constraint)
Creates a UnaryNot

Method Summary

Constraint	getConstraint()
void	setConstraint(Constraint constraint)
boolean	test(Object value) Negates the boolean result returned by testing the wrapped constraint.
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

Not

public Not()

Creates a UnaryNot in temporary invalid state - please use only if you have to, the well-formed constructor is much preferred.

Not

public Not(Constraint constraint)

Creates a UnaryNot

Parameters:

constraint - The constraint to negate.

Method Detail

setConstraint

public void setConstraint(Constraint constraint)

test

public boolean test(Object value)

Negates the boolean result returned by testing the wrapped constraint.

Specified by:

test in interface Constraint

Parameters:

value - the argument value

Returns:

true if the condition was satisfied, false otherwise

See Also:

Constraint.test(java.lang.Object)

toString

public String toString()

Overrides:

toString in class Object

getConstraint

public Constraint getConstraint()