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Java > Open Source Codes > org > jmock > core > Constraint


1 /* Copyright (c) 2000-2004 jMock.org
2  */
3 package org.jmock.core;
4
5 /**
6  * A constraint over acceptable values.
7  */
8 public interface Constraint extends SelfDescribing
9 {
10     /**
11      * Evaluates the constraint for argument <var>o</var>.
12      *
13      * @param o the object against which the constraint is evaluated.
14      * @return <code>true</code> if <var>o</var> meets the constraint,
15      * <code>false</code> if it does not.
16      */
17     boolean eval( Object JavaDoc o );
18 }
19
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