@FunctionalInterface public interface Double2ShortFunction extends Function<java.lang.Double,java.lang.Short>, java.util.function.DoubleToIntFunction
Function
; provides some additional methods that use polymorphism to avoid (un)boxing.
Type-specific versions of get()
, put()
and
remove()
cannot rely on null
to denote absence of
a key. Rather, they return a default
return value, which is set to 0/false at creation, but can be changed using
the defaultReturnValue()
method.
For uniformity reasons, even functions returning objects implement the default
return value (of course, in this case the default return value is
initialized to null
).
The default implementation of optional operations just throw an UnsupportedOperationException
, except for the type-specific containsKey()
, which return true. Generic versions of accessors delegate to
the corresponding type-specific counterparts following the interface rules.
Warning: to fall in line as much as possible with the
standard map interface, it is required that
standard versions of get()
, put()
and
remove()
for maps with primitive-type keys or values return
null
to denote missing keys rather than wrap the default
return value in an object. In case both keys and values are reference
types, the default return value must be returned instead, thus violating
the standard map interface when the default
return value is not null
.
Function
Modifier and Type | Method and Description |
---|---|
default <T> java.util.function.Function<java.lang.Double,T> |
andThen(java.util.function.Function<? super java.lang.Short,? extends T> after)
Deprecated.
Please use the corresponding type-specific method instead.
|
default Double2ByteFunction |
andThenByte(Short2ByteFunction after) |
default Double2CharFunction |
andThenChar(Short2CharFunction after) |
default Double2DoubleFunction |
andThenDouble(Short2DoubleFunction after) |
default Double2FloatFunction |
andThenFloat(Short2FloatFunction after) |
default Double2IntFunction |
andThenInt(Short2IntFunction after) |
default Double2LongFunction |
andThenLong(Short2LongFunction after) |
default <T> Double2ObjectFunction<T> |
andThenObject(Short2ObjectFunction<? extends T> after) |
default <T> Double2ReferenceFunction<T> |
andThenReference(Short2ReferenceFunction<? extends T> after) |
default Double2ShortFunction |
andThenShort(Short2ShortFunction after) |
default int |
applyAsInt(double operand) |
default <T> java.util.function.Function<T,java.lang.Short> |
compose(java.util.function.Function<? super T,? extends java.lang.Double> before)
Deprecated.
Please use the corresponding type-specific method instead.
|
default Byte2ShortFunction |
composeByte(Byte2DoubleFunction before) |
default Char2ShortFunction |
composeChar(Char2DoubleFunction before) |
default Double2ShortFunction |
composeDouble(Double2DoubleFunction before) |
default Float2ShortFunction |
composeFloat(Float2DoubleFunction before) |
default Int2ShortFunction |
composeInt(Int2DoubleFunction before) |
default Long2ShortFunction |
composeLong(Long2DoubleFunction before) |
default <T> Object2ShortFunction<T> |
composeObject(Object2DoubleFunction<? super T> before) |
default <T> Reference2ShortFunction<T> |
composeReference(Reference2DoubleFunction<? super T> before) |
default Short2ShortFunction |
composeShort(Short2DoubleFunction before) |
default boolean |
containsKey(double key)
Returns true if this function contains a mapping for the specified key.
|
default boolean |
containsKey(java.lang.Object key)
Deprecated.
Please use the corresponding type-specific method instead.
|
default short |
defaultReturnValue()
Gets the default return value.
|
default void |
defaultReturnValue(short rv)
Sets the default return value (optional operation).
|
short |
get(double key)
Returns the value to which the given key is mapped.
|
default java.lang.Short |
get(java.lang.Object key)
Deprecated.
Please use the corresponding type-specific method instead.
|
default short |
getOrDefault(double key,
short defaultValue)
Returns the value associated by this function to the specified key, or give the specified
value if not present.
|
default java.lang.Short |
getOrDefault(java.lang.Object key,
java.lang.Short defaultValue)
Deprecated.
Please use the corresponding type-specific method instead.
|
default short |
put(double key,
short value)
Adds a pair to the map (optional operation).
|
default java.lang.Short |
put(java.lang.Double key,
java.lang.Short value)
Deprecated.
Please use the corresponding type-specific method instead.
|
default short |
remove(double key)
Removes the mapping with the given key (optional operation).
|
default java.lang.Short |
remove(java.lang.Object key)
Deprecated.
Please use the corresponding type-specific method instead.
|
default int applyAsInt(double operand)
applyAsInt
in interface java.util.function.DoubleToIntFunction
default short put(double key, short value)
key
- the key.value
- the value.Function.put(Object,Object)
short get(double key)
key
- the key.Function.get(Object)
default short getOrDefault(double key, short defaultValue)
key
- the key.defaultValue
- the value to return if not present.defaultValue
if no value was present for the given key.Function.getOrDefault(Object, Object)
default short remove(double key)
key
- the key.Function.remove(Object)
@Deprecated default java.lang.Short put(java.lang.Double key, java.lang.Short value)
key
- the key.value
- the value.null
if no value was present for the given key.Map.put(Object,Object)
@Deprecated default java.lang.Short get(java.lang.Object key)
key
- the key.null
if no value was present for the given key.Map.get(Object)
@Deprecated default java.lang.Short getOrDefault(java.lang.Object key, java.lang.Short defaultValue)
key
- the key.defaultValue
- the default value to return if not present.defaultValue
if no value was present for the
given key.Map.getOrDefault(Object, Object)
@Deprecated default java.lang.Short remove(java.lang.Object key)
key
- the key.null
if no value was present for the given key.Map.remove(Object)
default boolean containsKey(double key)
Note that for some kind of functions (e.g., hashes) this method will always return true. In particular, this default implementation always returns true.
key
- the key.key
.Function.containsKey(Object)
@Deprecated default boolean containsKey(java.lang.Object key)
Note that for some kind of functions (e.g., hashes) this method will always return true. This default implementation, in particular, always return true.
key
- the key.key
.Map.containsKey(Object)
default void defaultReturnValue(short rv)
get()
, put()
and remove()
to
denote that the map does not contain the specified key. It must be
0/false
/null
by default.rv
- the new default return value.defaultReturnValue()
default short defaultReturnValue()
This default implementation just return the default null value
of the type (null
for objects, 0 for scalars, false for Booleans).
@Deprecated default <T> java.util.function.Function<T,java.lang.Short> compose(java.util.function.Function<? super T,? extends java.lang.Double> before)
compose
in interface java.util.function.Function<java.lang.Double,java.lang.Short>
@Deprecated default <T> java.util.function.Function<java.lang.Double,T> andThen(java.util.function.Function<? super java.lang.Short,? extends T> after)
andThen
in interface java.util.function.Function<java.lang.Double,java.lang.Short>
default Double2ByteFunction andThenByte(Short2ByteFunction after)
default Byte2ShortFunction composeByte(Byte2DoubleFunction before)
default Double2ShortFunction andThenShort(Short2ShortFunction after)
default Short2ShortFunction composeShort(Short2DoubleFunction before)
default Double2IntFunction andThenInt(Short2IntFunction after)
default Int2ShortFunction composeInt(Int2DoubleFunction before)
default Double2LongFunction andThenLong(Short2LongFunction after)
default Long2ShortFunction composeLong(Long2DoubleFunction before)
default Double2CharFunction andThenChar(Short2CharFunction after)
default Char2ShortFunction composeChar(Char2DoubleFunction before)
default Double2FloatFunction andThenFloat(Short2FloatFunction after)
default Float2ShortFunction composeFloat(Float2DoubleFunction before)
default Double2DoubleFunction andThenDouble(Short2DoubleFunction after)
default Double2ShortFunction composeDouble(Double2DoubleFunction before)
default <T> Double2ObjectFunction<T> andThenObject(Short2ObjectFunction<? extends T> after)
default <T> Object2ShortFunction<T> composeObject(Object2DoubleFunction<? super T> before)
default <T> Double2ReferenceFunction<T> andThenReference(Short2ReferenceFunction<? extends T> after)
default <T> Reference2ShortFunction<T> composeReference(Reference2DoubleFunction<? super T> before)