Package io.netty.util.collection

Class IntCollections.EmptyMap

java.lang.Object

io.netty.util.collection.IntCollections.EmptyMap

All Implemented Interfaces:

IntObjectMap<Object>, Map<Integer,Object>

Enclosing class:

IntCollections

private static final class IntCollections.EmptyMap
extends Object
implements IntObjectMap<Object>

An empty map. All operations that attempt to modify the map are unsupported.

Nested Class Summary

Nested classes/interfaces inherited from interface io.netty.util.collection.IntObjectMap

IntObjectMap.PrimitiveEntry<V>

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

Map.Entry<K,V>

Constructor Summary

Constructors

Modifier	Constructor	Description
private	EmptyMap()

Method Summary

Modifier and Type	Method	Description
void	clear()
boolean	containsKey(int key)	Indicates whether or not this map contains a value for the specified key.
boolean	containsKey(Object key)
boolean	containsValue(Object value)
Iterable<IntObjectMap.PrimitiveEntry<Object>>	entries()	Gets an iterable to traverse over the primitive entries contained in this map.
Set<Map.Entry<Integer,Object>>	entrySet()
Object	get(int key)	Gets the value in the map with the specified key.
Object	get(Object key)
boolean	isEmpty()
Set<Integer>	keySet()
Object	put(int key, Object value)	Puts the given entry into the map.
Object	put(Integer key, Object value)
void	putAll(Map<? extends Integer,?> m)
Object	remove(int key)	Removes the entry with the specified key.
Object	remove(Object key)
int	size()
Collection<Object>	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 Details

EmptyMap

private EmptyMap()

Method Details

get

public Object get(int key)

Description copied from interface: IntObjectMap

Gets the value in the map with the specified key.

Specified by:

get in interface IntObjectMap<Object>

Parameters:

key - the key whose associated value is to be returned.

Returns:

the value or null if the key was not found in the map.

put

public Object put(int key,
 Object value)

Description copied from interface: IntObjectMap

Puts the given entry into the map.

Specified by:

put in interface IntObjectMap<Object>

Parameters:

key - the key of the entry.

value - the value of the entry.

Returns:

the previous value for this key or null if there was no previous mapping.

remove

public Object remove(int key)

Description copied from interface: IntObjectMap

Removes the entry with the specified key.

Specified by:

remove in interface IntObjectMap<Object>

Parameters:

key - the key for the entry to be removed from this map.

Returns:

the previous value for the key, or null if there was no mapping.

size

public int size()

Specified by:

size in interface Map<Integer,Object>

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface Map<Integer,Object>

containsKey

public boolean containsKey(Object key)

Specified by:

containsKey in interface Map<Integer,Object>

clear

public void clear()

Specified by:

clear in interface Map<Integer,Object>

keySet

public Set<Integer> keySet()

Specified by:

keySet in interface Map<Integer,Object>

containsKey

public boolean containsKey(int key)

Description copied from interface: IntObjectMap

Indicates whether or not this map contains a value for the specified key.

Specified by:

containsKey in interface IntObjectMap<Object>

containsValue

public boolean containsValue(Object value)

Specified by:

containsValue in interface Map<Integer,Object>

entries

public Iterable<IntObjectMap.PrimitiveEntry<Object>> entries()

Description copied from interface: IntObjectMap

Gets an iterable to traverse over the primitive entries contained in this map. As an optimization, the IntObjectMap.PrimitiveEntrys returned by the

invalid reference

Iterator

may change as the

invalid reference

Iterator

progresses. The caller should not rely on IntObjectMap.PrimitiveEntry key/value stability.

Specified by:

entries in interface IntObjectMap<Object>

get

public Object get(Object key)

Specified by:

get in interface Map<Integer,Object>

put

public Object put(Integer key,
 Object value)

Specified by:

put in interface Map<Integer,Object>

remove

public Object remove(Object key)

Specified by:

remove in interface Map<Integer,Object>

putAll

public void putAll(Map<? extends Integer,?> m)

Specified by:

putAll in interface Map<Integer,Object>

values

public Collection<Object> values()

Specified by:

values in interface Map<Integer,Object>

entrySet

public Set<Map.Entry<Integer,Object>> entrySet()

Specified by:

entrySet in interface Map<Integer,Object>