Package it.unimi.dsi.fastutil.objects

Class Reference2LongFunctions.PrimitiveFunction<K>

java.lang.Object

it.unimi.dsi.fastutil.objects.Reference2LongFunctions.PrimitiveFunction<K>

All Implemented Interfaces:

Function<K,java.lang.Long>, Reference2LongFunction<K>, java.util.function.Function<K,java.lang.Long>, java.util.function.ToLongFunction<K>

Enclosing class:

Reference2LongFunctions

public static class Reference2LongFunctions.PrimitiveFunction<K>
extends java.lang.Object
implements Reference2LongFunction<K>

An adapter for mapping generic total functions to partial primitive functions.

Method Summary

Modifier and Type	Method	Description
boolean	containsKey(java.lang.Object key)	Returns true if this function contains a mapping for the specified key.
java.lang.Long	get(java.lang.Object key)	Deprecated.
long	getLong(java.lang.Object key)	Returns the value to which the given key is mapped.
java.lang.Long	put(K key, java.lang.Long value)	Deprecated.

Methods inherited from interface it.unimi.dsi.fastutil.Function

apply, clear, size

Methods inherited from interface java.util.function.Function

andThen, compose

Methods inherited from class java.lang.Object

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

Methods inherited from interface it.unimi.dsi.fastutil.objects.Reference2LongFunction

applyAsLong, defaultReturnValue, defaultReturnValue, put, remove, removeLong

Method Detail

containsKey

public boolean containsKey(java.lang.Object key)

Description copied from interface: Function

Returns true if this function contains a mapping for the specified 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.

Specified by:

containsKey in interface Function<K,java.lang.Long>

Parameters:

key - the key.

Returns:

true if this function associates a value to key.

See Also:

Map.containsKey(Object)

getLong

public long getLong(java.lang.Object key)

Description copied from interface: Reference2LongFunction

Returns the value to which the given key is mapped.

Specified by:

getLong in interface Reference2LongFunction<K>

Parameters:

key - the key.

Returns:

the corresponding value, or the default return value if no value was present for the given key.

See Also:

Function.get(Object)

get

@Deprecated
public java.lang.Long get(java.lang.Object key)

Deprecated.

Description copied from interface: Reference2LongFunction

Returns the value associated by this function to the specified key.

Specified by:

get in interface Function<K,java.lang.Long>

Specified by:

get in interface Reference2LongFunction<K>

Parameters:

key - the key.

Returns:

the corresponding value, or null if no value was present for the given key.

See Also:

Map.get(Object)

put

@Deprecated
public java.lang.Long put(K key,
                          java.lang.Long value)

Deprecated.

Description copied from interface: Reference2LongFunction

Associates the specified value with the specified key in this function (optional operation).

Specified by:

put in interface Function<K,java.lang.Long>

Specified by:

put in interface Reference2LongFunction<K>

Parameters:

key - the key.

value - the value.

Returns:

the old value, or null if no value was present for the given key.

See Also:

Map.put(Object,Object)