Package org.hamcrest.core

Class IsSame<T>

java.lang.Object

org.hamcrest.BaseMatcher<T>

org.hamcrest.core.IsSame<T>

Type Parameters:

T - the matched value type

All Implemented Interfaces:

Matcher<T>, SelfDescribing

public class IsSame<T>
extends BaseMatcher<T>

Is the value the same object as another value?

Constructor Summary

Constructors

Constructor	Description
IsSame(T object)	Constructor, best called from sameInstance(Object) or theInstance(Object).

Method Summary

Modifier and Type	Method	Description
void	describeTo(Description description)	Generates a description of the object.
boolean	matches(Object arg)	Evaluates the matcher for argument item.
static <T> Matcher<T>	sameInstance(T target)	Creates a matcher that matches only when the examined object is the same instance as the specified target object.
static <T> Matcher<T>	theInstance(T target)	Creates a matcher that matches only when the examined object is the same instance as the specified target object.

Methods inherited from class org.hamcrest.BaseMatcher

_dont_implement_Matcher___instead_extend_BaseMatcher_, describeMismatch, isNotNull, toString

Methods inherited from class java.lang.Object

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

Constructor Details

IsSame

public IsSame(T object)

Constructor, best called from sameInstance(Object) or theInstance(Object).

Parameters:

object - the object to check

Method Details

matches

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.

Parameters:

arg - the object against which the matcher is evaluated.

Returns:

true if item matches, otherwise false.

See Also:

• BaseMatcher

describeTo

public void describeTo(Description description)

Description copied from interface: SelfDescribing

Generates a description of the object. The description may be part of a description of a larger object of which this is just a component, so it should be worded appropriately.

Parameters:

description - The description to be built or appended to.

sameInstance

public static <T> Matcher<T> sameInstance(T target)

Creates a matcher that matches only when the examined object is the same instance as the specified target object.

Type Parameters:

T - the matcher type.

Parameters:

target - the target instance against which others should be assessed

Returns:

The matcher.

theInstance

public static <T> Matcher<T> theInstance(T target)

Creates a matcher that matches only when the examined object is the same instance as the specified target object.

Type Parameters:

T - the matcher type.

Parameters:

target - the target instance against which others should be assessed

Returns:

The matcher.