public static class Reference2BooleanFunctions.UnmodifiableFunction<K> extends AbstractReference2BooleanFunction<K> implements Serializable
| Modifier and Type | Method and Description |
|---|---|
void |
clear() |
boolean |
containsKey(Object k) |
boolean |
defaultReturnValue()
Gets the default return value.
|
void |
defaultReturnValue(boolean defRetValue)
Sets the default return value (optional operation).
|
boolean |
equals(Object o)
Indicates whether some other object is "equal to" this one.
|
Boolean |
get(Object k)
Deprecated.
Please use the corresponding type-specific method
instead.
|
boolean |
getBoolean(Object k)
Returns the value to which the given key is mapped.
|
int |
hashCode()
Returns a hash code value for the object.
|
boolean |
put(K k,
boolean v)
Adds a pair to the map (optional operation).
|
Boolean |
put(K k,
Boolean v)
Deprecated.
Please use the corresponding type-specific method
instead.
|
Boolean |
remove(Object k)
Deprecated.
Please use the corresponding type-specific method
instead.
|
boolean |
removeBoolean(Object k)
Removes the mapping with the given key (optional operation).
|
int |
size() |
String |
toString()
Returns a string representation of the object.
|
testpublic int size()
public boolean defaultReturnValue()
Reference2BooleanFunction
This default implementation just return the default null value of the
type (null for objects, 0 for scalars, false for Booleans).
defaultReturnValue in interface Reference2BooleanFunction<K>defaultReturnValue in class AbstractReference2BooleanFunction<K>public void defaultReturnValue(boolean defRetValue)
Reference2BooleanFunctionget(),
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 Reference2BooleanFunction<K>defaultReturnValue in class AbstractReference2BooleanFunction<K>defRetValue - the new default return value.Reference2BooleanFunction.defaultReturnValue()public boolean containsKey(Object k)
public boolean put(K k, boolean v)
Reference2BooleanFunctionput in interface Reference2BooleanFunction<K>k - the key.v - the value.Function.put(Object,Object)public boolean getBoolean(Object k)
Reference2BooleanFunctiongetBoolean in interface Reference2BooleanFunction<K>k - the key.Function.get(Object)public boolean removeBoolean(Object k)
Reference2BooleanFunctionremoveBoolean in interface Reference2BooleanFunction<K>k - the key.Function.remove(Object)public void clear()
@Deprecated public Boolean put(K k, Boolean v)
put in interface Reference2BooleanFunction<K>k - the key.v - the value.null if no value was present for the given key.Map.put(Object,Object)@Deprecated public Boolean get(Object k)
get in interface Reference2BooleanFunction<K>k - the key.null if no value was present for the given key.Map.get(Object)@Deprecated public Boolean remove(Object k)
remove in interface Reference2BooleanFunction<K>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())