recoder.util
Class Order.Identity

java.lang.Object
  recoder.util.Order.Identity

All Implemented Interfaces:

Equality, HashCode, Order

Enclosing interface:

Order

public static class Order.Identity
extends java.lang.Object
implements Order, HashCode

Identity order implementation comparing objects by address. The implementation uses System.identityHashCode and implements HashCode. The order is based upon this encoding which allows retrieval of objects but has no further meaning. Note that x != null implies less(null, x) and of course equals(null, null).

Nested Class Summary

Nested classes/interfaces inherited from interface recoder.util.Order

Order.CustomLexicalOrder, Order.Identity, Order.Lexical, Order.Natural

Field Summary

Fields inherited from interface recoder.util.Order

IDENTITY, LEXICAL, NATURAL

Fields inherited from interface recoder.util.HashCode

IDENTITY, NATURAL

Constructor Summary

Order.Identity()

Method Summary

boolean	equals(java.lang.Object x, java.lang.Object y) Compares two objects for equality.
boolean	greater(java.lang.Object x, java.lang.Object y) Check if the first object is greater than the second one.
boolean	greaterOrEquals(java.lang.Object x, java.lang.Object y) Check if the first object is greater than or equals the second one.
int	hashCode(java.lang.Object x) Return an integer value representing the object.
boolean	isComparable(java.lang.Object x, java.lang.Object y) Check if both objects can be related.
boolean	less(java.lang.Object x, java.lang.Object y) Check if the first object is less than the second one.
boolean	lessOrEquals(java.lang.Object x, java.lang.Object y) Check if the first object is less than or equals the second one.

Methods inherited from class java.lang.Object

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

Constructor Detail

Order.Identity

public Order.Identity()

Method Detail

equals

public final boolean equals(java.lang.Object x,
                            java.lang.Object y)

Description copied from interface: Equality

Compares two objects for equality.

Specified by:

equals in interface Equality

Parameters:

x - the first object.

y - the second object.

Returns:

true, if x equals y, false otherwise.

hashCode

public final int hashCode(java.lang.Object x)

Description copied from interface: HashCode

Return an integer value representing the object.

Specified by:

hashCode in interface HashCode

Parameters:

x - an object.

Returns:

the hash code.

isComparable

public final boolean isComparable(java.lang.Object x,
                                  java.lang.Object y)

Description copied from interface: Order

Check if both objects can be related.

Specified by:

isComparable in interface Order

Parameters:

x - the first object.

y - the second object.

Returns:

true if both objects can be compared, false otherwise.

less

public final boolean less(java.lang.Object x,
                          java.lang.Object y)

Description copied from interface: Order

Check if the first object is less than the second one. This comparison is strict: less(x, y) implies !equals(x, y) .

Specified by:

less in interface Order

Parameters:

x - the first object.

y - the second object.

Returns:

true if the first object is less than the second one.

greater

public final boolean greater(java.lang.Object x,
                             java.lang.Object y)

Description copied from interface: Order

Check if the first object is greater than the second one. This comparison is strict: greater(x, y) implies !equals(x, y).

Specified by:

greater in interface Order

Parameters:

x - the first object.

y - the second object.

Returns:

true if the first object is greater than the second one.

lessOrEquals

public final boolean lessOrEquals(java.lang.Object x,
                                  java.lang.Object y)

Description copied from interface: Order

Check if the first object is less than or equals the second one.

Specified by:

lessOrEquals in interface Order

Parameters:

x - the first object.

y - the second object.

Returns:

true if the first object is less than or equals the second one.

greaterOrEquals

public final boolean greaterOrEquals(java.lang.Object x,
                                     java.lang.Object y)

Description copied from interface: Order

Check if the first object is greater than or equals the second one.

Specified by:

greaterOrEquals in interface Order

Parameters:

x - the first object.

y - the second object.

Returns:

true if the first object is greater than or equals the second one.