it.unimi.dsi.fastutil.ints

Class Int2LongFunctions.SynchronizedFunction

java.lang.Object

it.unimi.dsi.fastutil.ints.AbstractInt2LongFunction

it.unimi.dsi.fastutil.ints.Int2LongFunctions.SynchronizedFunction

All Implemented Interfaces:

Function<Integer,Long>, Int2LongFunction, Serializable

Direct Known Subclasses:

Int2LongMaps.SynchronizedMap

Enclosing class:

Int2LongFunctions

public static class Int2LongFunctions.SynchronizedFunction
extends AbstractInt2LongFunction
implements Serializable

A synchronized wrapper class for functions.

See Also:

Serialized Form

Method Summary

Modifier and Type	Method and Description
void	clear() Removes all associations from this function (optional operation).
boolean	containsKey(int k)
boolean	containsKey(Object ok) Returns true if this function contains a mapping for the specified key.
long	defaultReturnValue() Gets the default return value.
void	defaultReturnValue(long defRetValue) Sets the default return value.
long	get(int k) Returns the value to which the given key is mapped.
Long	get(Object k) Delegates to the corresponding type-specific method, taking care of returning null on a missing key.
Long	put(Integer k, Long v) Delegates to the corresponding type-specific method, taking care of returning null on a missing key.
long	put(int k, long v) Adds a pair to the map.
long	remove(int k) Removes the mapping with the given key.
Long	remove(Object k) Delegates to the corresponding type-specific method, taking care of returning null on a missing key.
int	size() Returns the intended number of keys in this function, or -1 if no such number exists.
String	toString()

Methods inherited from class java.lang.Object

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

Method Detail

size

public int size()

Description copied from interface: Function

Returns the intended number of keys in this function, or -1 if no such number exists.

Most function implementations will have some knowledge of the intended number of keys in their domain. In some cases, however, this might not be possible.

Specified by:

size in interface Function<Integer,Long>

Returns:

the intended number of keys in this function, or -1 if that number is not available.

containsKey

public boolean containsKey(int k)

Specified by:

containsKey in interface Int2LongFunction

See Also:

Function.containsKey(Object)

defaultReturnValue

public long defaultReturnValue()

Description copied from interface: Int2LongFunction

Gets the default return value.

Specified by:

defaultReturnValue in interface Int2LongFunction

Overrides:

defaultReturnValue in class AbstractInt2LongFunction

Returns:

the current default return value.

defaultReturnValue

public void defaultReturnValue(long defRetValue)

Description copied from interface: Int2LongFunction

Sets the default return value. This value must be returned by type-specific versions of get(), put() and remove() to denote that the map does not contain the specified key. It must be 0/false/null by default.

Specified by:

defaultReturnValue in interface Int2LongFunction

Overrides:

defaultReturnValue in class AbstractInt2LongFunction

Parameters:

defRetValue - the new default return value.

See Also:

Int2LongFunction.defaultReturnValue()

put

public long put(int k,
                long v)

Description copied from interface: Int2LongFunction

Adds a pair to the map.

Specified by:

put in interface Int2LongFunction

Overrides:

put in class AbstractInt2LongFunction

Parameters:

k - the key.

v - the value.

Returns:

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

See Also:

Function.put(Object,Object)

clear

public void clear()

Description copied from interface: Function

Removes all associations from this function (optional operation).

Specified by:

clear in interface Function<Integer,Long>

Overrides:

clear in class AbstractInt2LongFunction

See Also:

Map.clear()

toString

public String toString()

Overrides:

toString in class Object

put

public Long put(Integer k,
                Long v)

Description copied from class: AbstractInt2LongFunction

Delegates to the corresponding type-specific method, taking care of returning null on a missing key.

This method must check whether the provided key is in the map using containsKey(). Thus, it probes the map twice. Implementors of subclasses should override it with a more efficient method.

Specified by:

put in interface Function<Integer,Long>

Overrides:

put in class AbstractInt2LongFunction

Parameters:

k - the key.

v - the value.

Returns:

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

See Also:

Map.put(Object,Object)

get

public Long get(Object k)

Description copied from class: AbstractInt2LongFunction

Delegates to the corresponding type-specific method, taking care of returning null on a missing key.

This method must check whether the provided key is in the map using containsKey(). Thus, it probes the map twice. Implementors of subclasses should override it with a more efficient method.

Specified by:

get in interface Function<Integer,Long>

Overrides:

get in class AbstractInt2LongFunction

Parameters:

k - the key.

Returns:

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

See Also:

Map.get(Object)

remove

public Long remove(Object k)

Description copied from class: AbstractInt2LongFunction

Delegates to the corresponding type-specific method, taking care of returning null on a missing key.

This method must check whether the provided key is in the map using containsKey(). Thus, it probes the map twice. Implementors of subclasses should override it with a more efficient method.

Specified by:

remove in interface Function<Integer,Long>

Overrides:

remove in class AbstractInt2LongFunction

Parameters:

k - the key.

Returns:

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

See Also:

Map.remove(Object)

remove

public long remove(int k)

Description copied from interface: Int2LongFunction

Removes the mapping with the given key.

Specified by:

remove in interface Int2LongFunction

Overrides:

remove in class AbstractInt2LongFunction

Parameters:

k - the key.

Returns:

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

See Also:

Function.remove(Object)

get

public long get(int k)

Description copied from interface: Int2LongFunction

Returns the value to which the given key is mapped.

Specified by:

get in interface Int2LongFunction

Parameters:

k - 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)

containsKey

public boolean containsKey(Object ok)

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.

Specified by:

containsKey in interface Function<Integer,Long>

Overrides:

containsKey in class AbstractInt2LongFunction

Parameters:

ok - the key.

Returns:

true if this function associates a value to key.

See Also:

Map.containsKey(Object)