org.key_project.util.collection

Class DefaultImmutableMap.NILMap<S,T>

java.lang.Object

org.key_project.util.collection.DefaultImmutableMap<S,T>

org.key_project.util.collection.DefaultImmutableMap.NILMap<S,T>

All Implemented Interfaces:

java.io.Serializable, java.lang.Iterable<ImmutableMapEntry<S,T>>, ImmutableMap<S,T>

Enclosing class:

DefaultImmutableMap<S,T>

private static class DefaultImmutableMap.NILMap<S,T>
extends DefaultImmutableMap<S,T>

the empty map

Field Summary

Fields

Modifier and Type	Field and Description
(package private) static DefaultImmutableMap.NILMap<?,?>	EMPTY_MAP
private static long	serialVersionUID generated serial

Constructor Summary

Constructors

Modifier	Constructor and Description
private	NILMap()

Method Summary

Modifier and Type	Method and Description
boolean	containsKey(S key)
boolean	containsValue(T val)
T	get(S key)
boolean	isEmpty() returns true if the map is empty
java.util.Iterator<ImmutableMapEntry<S,T>>	iterator()
java.util.Iterator<S>	keyIterator()
ImmutableMap<S,T>	put(S key, T value) inserts mapping into the map (old map is not modified) if key exists old entry has to be removed null is not allowed for key or value.
DefaultImmutableMap<S,T>	remove(S key) removes mapping (key,...) from map
ImmutableMap<S,T>	removeAll(T value) removes all mappings (...
int	size()
java.lang.String	toString()
java.util.Iterator<T>	valueIterator()

Methods inherited from class org.key_project.util.collection.DefaultImmutableMap

equals, hashCode, nilMap

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Field Detail

EMPTY_MAP

static final DefaultImmutableMap.NILMap<?,?> EMPTY_MAP

serialVersionUID

private static final long serialVersionUID

generated serial

See Also:

Constant Field Values

Constructor Detail

NILMap

private NILMap()

Method Detail

put

public ImmutableMap<S,T> put(S key,
                             T value)

Description copied from class: DefaultImmutableMap

inserts mapping into the map (old map is not modified) if key exists old entry has to be removed null is not allowed for key or value.

Specified by:

put in interface ImmutableMap<S,T>

Overrides:

put in class DefaultImmutableMap<S,T>

Parameters:

key - a S to be used as key

value - a T to be stored as value

Returns:

a ImmMap including the pair and all other pairs of the current map with keys different from the given key

get

public T get(S key)

Specified by:

get in interface ImmutableMap<S,T>

Overrides:

get in class DefaultImmutableMap<S,T>

Returns:

value of type T that is mapped by key of type S

isEmpty

public boolean isEmpty()

Description copied from class: DefaultImmutableMap

returns true if the map is empty

Specified by:

isEmpty in interface ImmutableMap<S,T>

Overrides:

isEmpty in class DefaultImmutableMap<S,T>

Returns:

true iff the map is empty

containsKey

public boolean containsKey(S key)

Specified by:

containsKey in interface ImmutableMap<S,T>

Overrides:

containsKey in class DefaultImmutableMap<S,T>

Returns:

true iff the map includes key

containsValue

public boolean containsValue(T val)

Specified by:

containsValue in interface ImmutableMap<S,T>

Overrides:

containsValue in class DefaultImmutableMap<S,T>

Returns:

true iff the map includes value

remove

public DefaultImmutableMap<S,T> remove(S key)

Description copied from class: DefaultImmutableMap

removes mapping (key,...) from map

Specified by:

remove in interface ImmutableMap<S,T>

Overrides:

remove in class DefaultImmutableMap<S,T>

Returns:

the new map (the same if key is not in the map)

removeAll

public ImmutableMap<S,T> removeAll(T value)

Description copied from class: DefaultImmutableMap

removes all mappings (...,value) from map

Specified by:

removeAll in interface ImmutableMap<S,T>

Overrides:

removeAll in class DefaultImmutableMap<S,T>

Returns:

the new map (the same if value is not mapped)

keyIterator

public java.util.Iterator<S> keyIterator()

Specified by:

keyIterator in interface ImmutableMap<S,T>

Overrides:

keyIterator in class DefaultImmutableMap<S,T>

Returns:

iterator for keys

valueIterator

public java.util.Iterator<T> valueIterator()

Specified by:

valueIterator in interface ImmutableMap<S,T>

Overrides:

valueIterator in class DefaultImmutableMap<S,T>

Returns:

iterator for values

iterator

public java.util.Iterator<ImmutableMapEntry<S,T>> iterator()

Specified by:

iterator in interface java.lang.Iterable<ImmutableMapEntry<S,T>>

Specified by:

iterator in interface ImmutableMap<S,T>

Overrides:

iterator in class DefaultImmutableMap<S,T>

Returns:

iterator for entries

size

public int size()

Specified by:

size in interface ImmutableMap<S,T>

Overrides:

size in class DefaultImmutableMap<S,T>

Returns:

number of entries as int

toString

public java.lang.String toString()

Overrides:

toString in class DefaultImmutableMap<S,T>