org.cactoos.map

Class MapOf<X,Y>

java.lang.Object

org.cactoos.map.MapEnvelope<X,Y>

org.cactoos.map.MapOf<X,Y>

Type Parameters:

X - Type of key

Y - Type of value

All Implemented Interfaces:

Map<X,Y>

public final class MapOf<X,Y>
extends MapEnvelope<X,Y>

Iterable as Map.

This class should be used very carefully. You must understand that it will fetch the entire content of the encapsulated Map on each method call. It doesn't cache the data anyhow. If you don't need this Map to re-fresh its content on every call, by doing round-trips to the encapsulated iterable, use StickyMap.

There is no thread-safety guarantee.

Since:

0.4

Version:

$Id: 5f0d2e84cce6f43a6f0faead58b4ff149169daaa $

Author:

Yegor Bugayenko ([email protected])

See Also:

StickyMap

Nested Class Summary

Nested classes/interfaces inherited from interface java.util.Map

Map.Entry<K,V>

Constructor Summary

Constructors

Constructor and Description
MapOf(Func<Z,Map.Entry<X,Y>> entry, Iterable<Z> list) Ctor.
MapOf(Func<Z,Map.Entry<X,Y>> entry, Map<X,Y> src, Iterable<Z> list) Ctor.
MapOf(Func<Z,X> key, Func<Z,Y> value, Iterable<Z> list) Ctor.
MapOf(Func<Z,X> key, Func<Z,Y> value, Map<X,Y> src, Iterable<Z> list) Ctor.
MapOf(Iterable<Map.Entry<X,Y>> entries) Ctor.
MapOf(Iterator<Map.Entry<X,Y>> entries) Ctor.
MapOf(Map.Entry<X,Y>... list) Ctor.
MapOf(Map<X,Y> src, Iterable<Map.Entry<X,Y>> list) Ctor.
MapOf(Map<X,Y> src, Map.Entry<X,Y>... list) Ctor.

Method Summary

Methods inherited from class org.cactoos.map.MapEnvelope

clear, containsKey, containsValue, entrySet, get, isEmpty, keySet, put, putAll, remove, size, values

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Map

compute, computeIfAbsent, computeIfPresent, equals, forEach, getOrDefault, hashCode, merge, putIfAbsent, remove, replace, replace, replaceAll

Constructor Detail

MapOf

@SafeVarargs
public MapOf(Map.Entry<X,Y>... list)

Ctor.

Parameters:

list - List of entries

MapOf

@SafeVarargs
public MapOf(Map<X,Y> src,
                          Map.Entry<X,Y>... list)

Ctor.

Parameters:

src - The map to extend

list - List of entries

Since:

0.12

MapOf

public MapOf(Func<Z,X> key,
             Func<Z,Y> value,
             Iterable<Z> list)

Ctor.

Type Parameters:

Z - Type of items in the list

Parameters:

list - List of items

key - Func to create key

value - Func to create value

Since:

0.11

MapOf

public MapOf(Func<Z,X> key,
             Func<Z,Y> value,
             Map<X,Y> src,
             Iterable<Z> list)

Ctor.

Type Parameters:

Z - Type of items in the list

Parameters:

src - The map to extend

list - List of items

key - Func to create key

value - Func to create value

Since:

0.12

MapOf

public MapOf(Func<Z,Map.Entry<X,Y>> entry,
             Iterable<Z> list)

Ctor.

Type Parameters:

Z - Type of items in the list

Parameters:

list - List of items

entry - Func to create entry

Since:

0.11

MapOf

public MapOf(Func<Z,Map.Entry<X,Y>> entry,
             Map<X,Y> src,
             Iterable<Z> list)

Ctor.

Type Parameters:

Z - Type of items in the list

Parameters:

src - The map to extend

list - List of items

entry - Func to create entry

Since:

0.11

MapOf

public MapOf(Map<X,Y> src,
             Iterable<Map.Entry<X,Y>> list)

Ctor.

Parameters:

src - Map to extend

list - List of the entries

Since:

0.12

MapOf

public MapOf(Iterator<Map.Entry<X,Y>> entries)

Ctor.

Parameters:

entries - List of the entries

MapOf

public MapOf(Iterable<Map.Entry<X,Y>> entries)

Ctor.

Parameters:

entries - List of the entries