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/* Copyright (c) 2000-2006 hamcrest.org
*/
package org.hamcrest.core;
import org.hamcrest.Description;
import org.hamcrest.Matcher;
import org.hamcrest.Factory;
import org.hamcrest.BaseMatcher;
/**
* Tests whether the value is an instance of a class.
*/
public class IsInstanceOf extends BaseMatcher<Object> {
private final Class<?> theClass;
/**
* Creates a new instance of IsInstanceOf
*
* @param theClass The predicate evaluates to true for instances of this class
* or one of its subclasses.
*/
public IsInstanceOf(Class<?> theClass) {
this.theClass = theClass;
}
public boolean matches(Object item) {
return theClass.isInstance(item);
}
public void describeTo(Description description) {
description.appendText("an instance of ")
.appendText(theClass.getName());
}
/**
* Is the value an instance of a particular type?
*/
@Factory
public static Matcher<Object> instanceOf(Class<?> type) {
return new IsInstanceOf(type);
}
}
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