Javolution 6.0.0 java
javolution.util.internal.comparator.IdentityComparatorImpl< E > Class Template Reference
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Public Member Functions

int hashCodeOf (E obj)
 
boolean areEqual (E e1, E e2)
 
int compare (E left, E right)
 
int hashCodeOf (T object)
 
boolean areEqual (T left, T right)
 
int compare (T left, T right)
 

Static Private Attributes

static final long serialVersionUID = 6576306094743751922L
 

Detailed Description

The identity comparator implementation.

Definition at line 18 of file IdentityComparatorImpl.java.

Member Function Documentation

◆ areEqual() [1/2]

boolean javolution.util.internal.comparator.IdentityComparatorImpl< E >.areEqual ( e1,
e2 
)

Definition at line 29 of file IdentityComparatorImpl.java.

29  {
30  return e1 == e2;
31  }

◆ areEqual() [2/2]

boolean javolution.util.function.Equality< T >.areEqual ( left,
right 
)
inherited

Indicates if the specified objects can be considered equal. This methods is equivalent to

(compare(o1, o2) == 0)

but usually faster.

Parameters
leftthe first object (or null).
rightthe second object (or null).
Returns
true if both objects are considered equal; false otherwise.

Referenced by javolution.util.internal.map.MapView< K, V >.EntryComparator.areEqual(), javolution.util.internal.collection.CollectionView< R >.contains(), javolution.util.internal.collection.CollectionView< R >.equals(), javolution.util.internal.table.TableView< E >.indexOf(), javolution.util.internal.table.TableView< E >.lastIndexOf(), javolution.util.internal.map.FastMapImpl< K, V >.remove(), javolution.util.internal.collection.CollectionView< R >.remove(), and javolution.util.internal.map.FastMapImpl< K, V >.replace().

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◆ compare() [1/2]

int javolution.util.internal.comparator.IdentityComparatorImpl< E >.compare ( left,
right 
)

Definition at line 34 of file IdentityComparatorImpl.java.

34  {
35  if (left == right)
36  return 0;
37  if (left == null)
38  return -1;
39  if (right == null)
40  return 1;
41 
42  // Empirical comparison.
43  return (hashCodeOf(left) < hashCodeOf(right)) ? -1 : 1;
44  }

References javolution.util.internal.comparator.IdentityComparatorImpl< E >.hashCodeOf().

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◆ compare() [2/2]

int javolution.util.function.Equality< T >.compare ( left,
right 
)
inherited

Compares the specified objects for order. Returns a negative integer, zero, or a positive integer as the first argument is less than, possibly equal to, or greater than the second. Implementation classes should ensure that comparisons with

null

is supported.

Parameters
leftthe first object.
rightthe second object.
Returns
a negative integer, zero, or a positive integer as the first argument is less than, possibly equal to, or greater than the second.

Referenced by javolution.util.internal.set.sorted.SubSortedSetImpl< E >.add(), javolution.util.internal.map.MapView< K, V >.EntryComparator.compare(), javolution.text.CharArray.compareTo(), javolution.text.Text.compareTo(), javolution.util.internal.set.sorted.SubSortedSetImpl< E >.contains(), javolution.util.internal.map.sorted.SubSortedMapImpl< K, V >.containsKey(), javolution.util.internal.map.sorted.SubSortedMapImpl< K, V >.get(), javolution.util.internal.set.sorted.SubSortedSetImpl< E >.IteratorImpl.hasNext(), javolution.util.internal.map.sorted.SubSortedMapImpl< K, V >.IteratorImpl.hasNext(), javolution.util.internal.map.sorted.SubSortedMapImpl< K, V >.put(), javolution.util.internal.set.sorted.SubSortedSetImpl< E >.remove(), and javolution.util.internal.map.sorted.SubSortedMapImpl< K, V >.remove().

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◆ hashCodeOf() [1/2]

Definition at line 24 of file IdentityComparatorImpl.java.

24  {
25  return System.identityHashCode(obj);
26  }

Referenced by javolution.util.internal.comparator.IdentityComparatorImpl< E >.compare().

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◆ hashCodeOf() [2/2]

int javolution.util.function.Equality< T >.hashCodeOf ( object)
inherited

Returns the hash code for the specified object (consistent with areEqual). Two objects considered equal have the same hash code. The hash code of null is always 0.

Parameters
objectthe object to return the hashcode for.
Returns
the hashcode for the specified object.

Referenced by javolution.util.internal.map.FastMapImpl< K, V >.containsKey(), javolution.util.internal.map.FastMapImpl< K, V >.get(), javolution.util.internal.collection.CollectionView< R >.hashCode(), javolution.util.internal.map.MapView< K, V >.EntryComparator.hashCodeOf(), javolution.util.internal.map.FastMapImpl< K, V >.put(), javolution.util.internal.map.FastMapImpl< K, V >.putIfAbsent(), javolution.util.internal.map.FastMapImpl< K, V >.remove(), and javolution.util.internal.map.FastMapImpl< K, V >.replace().

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Member Data Documentation

◆ serialVersionUID

final long javolution.util.internal.comparator.IdentityComparatorImpl< E >.serialVersionUID = 6576306094743751922L
staticprivate

Definition at line 21 of file IdentityComparatorImpl.java.


The documentation for this class was generated from the following file:
javolution.util.internal.comparator.IdentityComparatorImpl.compare
int compare(E left, E right)
Definition: IdentityComparatorImpl.java:34
javolution.util.internal.comparator.IdentityComparatorImpl.hashCodeOf
int hashCodeOf(E obj)
Definition: IdentityComparatorImpl.java:24