edu.ucsb.ccs.jaqual.standard
Class InstanceOf

java.lang.Object
  |
  +--edu.ucsb.ccs.jaqual.standard.InstanceOf

All Implemented Interfaces:

Assertion

public class InstanceOf

extends java.lang.Object

implements Assertion

Assertion to check if an object is an instance of a certain class type.

Example use:

   ForAll.in(elements).ensure(new InstanceOf(Integer.class));
 

Version:

$Id: InstanceOf.java,v 1.2 2002/07/11 19:58:33 parkera Exp $

Author:

Parker Abercrombie

Constructor Summary

InstanceOf(java.lang.Class clazz)
Create a new assertion.

Method Summary

boolean

eval(java.lang.Object o) Test an object to see if it is an instance of the target class.

Methods inherited from class java.lang.Object

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

Constructor Detail

InstanceOf

public InstanceOf(java.lang.Class clazz)

Create a new assertion.

Parameters:

clazz - the cass to match instances of.

Method Detail

eval

public boolean eval(java.lang.Object o)

Test an object to see if it is an instance of the target class.

Specified by:

eval in interface Assertion

Parameters:

o - the object to test.

Returns:

true if `o' is an instance of the target class. False if `o' is null, or not an instance.