public static class Int2ReferenceFunctions.UnmodifiableFunction<V> extends AbstractInt2ReferenceFunction<V> implements Serializable
| Modifier and Type | Method and Description |
|---|---|
void |
clear() |
boolean |
containsKey(int k)
Returns true if this function contains a mapping for the specified key.
|
V |
defaultReturnValue()
Gets the default return value.
|
void |
defaultReturnValue(V defRetValue)
Sets the default return value (optional operation).
|
boolean |
equals(Object o)
Indicates whether some other object is "equal to" this one.
|
V |
get(int k)
Returns the value to which the given key is mapped.
|
V |
get(Object k)
Deprecated.
Please use the corresponding type-specific method
instead.
|
int |
hashCode()
Returns a hash code value for the object.
|
V |
put(Integer k,
V v)
Deprecated.
Please use the corresponding type-specific method
instead.
|
V |
put(int k,
V v)
Adds a pair to the map (optional operation).
|
V |
remove(int k)
Removes the mapping with the given key (optional operation).
|
V |
remove(Object k)
Deprecated.
Please use the corresponding type-specific method
instead.
|
int |
size() |
String |
toString()
Returns a string representation of the object.
|
apply, containsKeypublic int size()
public V defaultReturnValue()
Int2ReferenceFunction
This default implementation just return the default null value of the
type (null for objects, 0 for scalars, false for Booleans).
defaultReturnValue in interface Int2ReferenceFunction<V>defaultReturnValue in class AbstractInt2ReferenceFunction<V>public void defaultReturnValue(V defRetValue)
Int2ReferenceFunctionget(),
put() and remove() to denote that the map does not
contain the specified key. It must be 0/false/null by
default.defaultReturnValue in interface Int2ReferenceFunction<V>defaultReturnValue in class AbstractInt2ReferenceFunction<V>defRetValue - the new default return value.Int2ReferenceFunction.defaultReturnValue()public boolean containsKey(int k)
Int2ReferenceFunctionNote that for some kind of functions (e.g., hashes) this method will always return true. In particular, this default implementation always returns true.
containsKey in interface Int2ReferenceFunction<V>k - the key.key.Function.containsKey(Object)public V put(int k, V v)
Int2ReferenceFunctionput in interface Int2ReferenceFunction<V>k - the key.v - the value.Function.put(Object,Object)public V get(int k)
Int2ReferenceFunctionget in interface Int2ReferenceFunction<V>k - the key.Function.get(Object)public V remove(int k)
Int2ReferenceFunctionremove in interface Int2ReferenceFunction<V>k - the key.Function.remove(Object)public void clear()
@Deprecated public V put(Integer k, V v)
put in interface Int2ReferenceFunction<V>k - the key.v - the value.null if no value was present for the given key.Map.put(Object,Object)@Deprecated public V get(Object k)
get in interface Int2ReferenceFunction<V>k - the key.null if no value was present for the given key.Map.get(Object)@Deprecated public V remove(Object k)
remove in interface Int2ReferenceFunction<V>k - the key.null if no value was present for the given key.Map.remove(Object)public int hashCode()
java.lang.ObjectHashMap.
The general contract of hashCode is:
hashCode method
must consistently return the same integer, provided no information
used in equals comparisons on the object is modified.
This integer need not remain consistent from one execution of an
application to another execution of the same application.
equals(Object)
method, then calling the hashCode method on each of
the two objects must produce the same integer result.
Object.equals(java.lang.Object)
method, then calling the hashCode method on each of the
two objects must produce distinct integer results. However, the
programmer should be aware that producing distinct integer results
for unequal objects may improve the performance of hash tables.
As much as is reasonably practical, the hashCode method defined by
class Object does return distinct integers for distinct
objects. (This is typically implemented by converting the internal
address of the object into an integer, but this implementation
technique is not required by the
Java™ programming language.)
hashCode in class ObjectObject.equals(java.lang.Object),
System.identityHashCode(java.lang.Object)public boolean equals(Object o)
java.lang.Object
The equals method implements an equivalence relation
on non-null object references:
x, x.equals(x) should return
true.
x and y, x.equals(y)
should return true if and only if
y.equals(x) returns true.
x, y, and z, if
x.equals(y) returns true and
y.equals(z) returns true, then
x.equals(z) should return true.
x and y, multiple invocations of
x.equals(y) consistently return true
or consistently return false, provided no
information used in equals comparisons on the
objects is modified.
x,
x.equals(null) should return false.
The equals method for class Object implements
the most discriminating possible equivalence relation on objects;
that is, for any non-null reference values x and
y, this method returns true if and only
if x and y refer to the same object
(x == y has the value true).
Note that it is generally necessary to override the hashCode
method whenever this method is overridden, so as to maintain the
general contract for the hashCode method, which states
that equal objects must have equal hash codes.
equals in class Objecto - the reference object with which to compare.true if this object is the same as the obj
argument; false otherwise.Object.hashCode(),
HashMappublic String toString()
java.lang.ObjecttoString method returns a string that
"textually represents" this object. The result should
be a concise but informative representation that is easy for a
person to read.
It is recommended that all subclasses override this method.
The toString method for class Object
returns a string consisting of the name of the class of which the
object is an instance, the at-sign character `@', and
the unsigned hexadecimal representation of the hash code of the
object. In other words, this method returns a string equal to the
value of:
getClass().getName() + '@' + Integer.toHexString(hashCode())