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com.mockobjects.constraint
Class IsEqual  

java.lang.Object
  com.mockobjects.constraint.IsEqual

All Implemented Interfaces:

Constraint

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public class IsEqual

extends java.lang.Object

implements Constraint

Is the value equal to another value, as tested by the Object.equals(java.lang.Object)>Object.equals(java.lang.Object) 55 method?

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Field Summary
private  java.lang.Object	_object

 

Constructor Summary

IsEqual(java.lang.Object equalArg)

 

Method Summary
boolean	equals(java.lang.Object anObject)           Determine whether this Object is semantically equal to another Object.
boolean	eval(java.lang.Object arg)           Evaluates the constraint for argument o.
java.lang.String	toString()           Convert this Object to a human-readable String.

 

Methods inherited from class java.lang.Object

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

 

Field Detail

_object

private java.lang.Object _object

Constructor Detail

IsEqual

public IsEqual(java.lang.Object equalArg)

Method Detail

eval

public boolean eval(java.lang.Object arg)

Description copied from interface: Constraint

Evaluates the constraint for argument o.

Specified by:

eval in interface Constraint

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toString

public java.lang.String toString()

Description copied from class: java.lang.Object

Convert this Object to a human-readable String. There are no limits placed on how long this String should be or what it should contain. We suggest you make it as intuitive as possible to be able to place it into System.out.println() 55 and such.

It is typical, but not required, to ensure that this method never completes abruptly with a java.lang.RuntimeException.

This method will be called when performing string concatenation with this object. If the result is null, string concatenation will instead use "null".

The default implementation returns getClass().getName() + "@" + Integer.toHexString(hashCode()).

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equals

public boolean equals(java.lang.Object anObject)

Description copied from class: java.lang.Object

Determine whether this Object is semantically equal to another Object.

There are some fairly strict requirements on this method which subclasses must follow:

• It must be transitive. If a.equals(b) and b.equals(c), then a.equals(c) must be true as well.
• It must be symmetric. a.equals(b) and b.equals(a) must have the same value.
• It must be reflexive. a.equals(a) must always be true.
• It must be consistent. Whichever value a.equals(b) returns on the first invocation must be the value returned on all later invocations.
• a.equals(null) must be false.
• It must be consistent with hashCode(). That is, a.equals(b) must imply a.hashCode() == b.hashCode(). The reverse is not true; two objects that are not equal may have the same hashcode, but that has the potential to harm hashing performance.

This is typically overridden to throw a java.lang.ClassCastException if the argument is not comparable to the class performing the comparison, but that is not a requirement. It is legal for a.equals(b) to be true even though a.getClass() != b.getClass(). Also, it is typical to never cause a java.lang.NullPointerException.

In general, the Collections API (java.util) use the equals method rather than the == operator to compare objects. However, java.util.IdentityHashMap is an exception to this rule, for its own good reasons.

The default implementation returns this == o.

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