Class IsSame<T>

  extended by org.hamcrest.BaseMatcher<T>
      extended by org.hamcrest.core.IsSame<T>
All Implemented Interfaces:
Matcher<T>, SelfDescribing

public class IsSame<T>
extends BaseMatcher<T>

Is the value the same object as another value?

Constructor Summary
IsSame(T object)
Method Summary
 void describeTo(Description description)
          Generates a description of the object.
 boolean matches(Object arg)
          Evaluates the matcher for argument item.
<T> Matcher<T>
sameInstance(T object)
          Creates a new instance of IsSame
Methods inherited from class org.hamcrest.BaseMatcher
_dont_implement_Matcher___instead_extend_BaseMatcher_, toString
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail


public IsSame(T object)
Method Detail


public boolean matches(Object arg)
Description copied from interface: Matcher
Evaluates the matcher for argument item.

This method matches against Object, instead of the generic type T. This is because the caller of the Matcher does not know at runtime what the type is (because of type erasure with Java generics). It is down to the implementations to check the correct type.

arg - the object against which the matcher is evaluated.
true if item matches, otherwise false.
See Also:


public void describeTo(Description description)
Description copied from interface: SelfDescribing
Generates a description of the object. The description may be part of a a description of a larger object of which this is just a component, so it should be worded appropriately.

description - The description to be built or appended to.


public static <T> Matcher<T> sameInstance(T object)
Creates a new instance of IsSame

object - The predicate evaluates to true only when the argument is this object.

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