org.jmock.core.constraint
Class IsNothing

java.lang.Object
  extended by org.jmock.core.constraint.IsNothing
All Implemented Interfaces:
Constraint, SelfDescribing

public class IsNothing
extends Object
implements Constraint


Field Summary
static IsNothing INSTANCE
           
 
Constructor Summary
IsNothing()
           
IsNothing(String description)
           
 
Method Summary
 StringBuffer describeTo(StringBuffer buffer)
          Appends the description of this object to the buffer.
 boolean eval(Object o)
          Evaluates the constraint for argument o.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Field Detail

INSTANCE

public static final IsNothing INSTANCE
Constructor Detail

IsNothing

public IsNothing()

IsNothing

public IsNothing(String description)
Method Detail

eval

public boolean eval(Object o)
Description copied from interface: Constraint
Evaluates the constraint for argument o.

Specified by:
eval in interface Constraint
Parameters:
o - the object against which the constraint is evaluated.
Returns:
true if o meets the constraint, false if it does not.

describeTo

public StringBuffer describeTo(StringBuffer buffer)
Description copied from interface: SelfDescribing
Appends the description of this object to the buffer.

Specified by:
describeTo in interface SelfDescribing
Parameters:
buffer - The buffer that the description is appended to.
Returns:
The buffer passed to the invokedMethod.