net.sf.mmm.util.lang.api

Class EqualsCheckerIsSame

java.lang.Object

net.sf.mmm.util.lang.api.AbstractEqualsChecker<Object>

net.sf.mmm.util.lang.api.EqualsCheckerIsSame

All Implemented Interfaces:

Serializable, EqualsChecker<Object>

public final class EqualsCheckerIsSame
extends AbstractEqualsChecker<Object>

This is an implementation of EqualsChecker that simply checks if two objects are same (identical instances, checked via == operator).

Since:

3.0.0

Author:

Joerg Hohwiller (hohwille at users.sourceforge.net)

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
private static EqualsCheckerIsSame	INSTANCE
private static long	serialVersionUID

Constructor Summary

Constructors

Constructor and Description
EqualsCheckerIsSame() The constructor.

Method Summary

Modifier and Type	Method and Description
static <VALUE> EqualsChecker<VALUE>	getInstance()
protected boolean	isEqualNotNull(Object value1, Object value2) Called from AbstractEqualsChecker.isEqual(Object, Object) if objects are both NOT same and NOT null.

Methods inherited from class net.sf.mmm.util.lang.api.AbstractEqualsChecker

isEqual

Methods inherited from class java.lang.Object

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

Field Detail

serialVersionUID

private static final long serialVersionUID

See Also:

Constant Field Values

INSTANCE

private static final EqualsCheckerIsSame INSTANCE

Constructor Detail

EqualsCheckerIsSame

public EqualsCheckerIsSame()

The constructor.
If possible use getInstance() instead.

Method Detail

getInstance

public static <VALUE> EqualsChecker<VALUE> getInstance()

Type Parameters:

VALUE - is the generic type of the values to check.

Returns:

the singleton instance of this class.

isEqualNotNull

protected boolean isEqualNotNull(Object value1,
                                 Object value2)

Description copied from class: AbstractEqualsChecker

Called from AbstractEqualsChecker.isEqual(Object, Object) if objects are both NOT same and NOT null.

Specified by:

isEqualNotNull in class AbstractEqualsChecker<Object>

Parameters:

value1 - is the first value to check.

value2 - is the first value to check.

Returns:

true if the given values are considered as equal, false otherwise.