org.jmock.core.constraint
Class IsInstanceOf

java.lang.Object
  org.jmock.core.constraint.IsInstanceOf

All Implemented Interfaces:

Constraint, SelfDescribing

public class IsInstanceOf
extends Object
implements Constraint

Tests whether the value is an instance of a class.

Constructor Summary

IsInstanceOf(Class theClass)
Creates a new instance of IsInstanceOf

Method Summary

StringBuffer	describeTo(StringBuffer buffer) Appends the description of this object to the buffer.
boolean	eval(Object arg) Evaluates the constraint for argument o.

Methods inherited from class java.lang.Object

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

Constructor Detail

IsInstanceOf

public IsInstanceOf(Class theClass)

Creates a new instance of IsInstanceOf

Parameters:

theClass - The predicate evaluates to true for instances of this class or one of its subclasses.

Method Detail

eval

public boolean eval(Object arg)

Description copied from interface: Constraint

Evaluates the constraint for argument o.

Specified by:

eval in interface Constraint

Parameters:

arg - 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.