Package io.netty.util.collection
Class LongCollections.EmptyMap
java.lang.Object
io.netty.util.collection.LongCollections.EmptyMap
- All Implemented Interfaces:
LongObjectMap<Object>
,Map<Long,
Object>
- Enclosing class:
LongCollections
An empty map. All operations that attempt to modify the map are unsupported.
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Nested Class Summary
Nested classes/interfaces inherited from interface io.netty.util.collection.LongObjectMap
LongObjectMap.PrimitiveEntry<V>
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Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionvoid
clear()
boolean
containsKey
(long key) Indicates whether or not this map contains a value for the specified key.boolean
containsKey
(Object key) boolean
containsValue
(Object value) entries()
Gets an iterable to traverse over the primitive entries contained in this map.entrySet()
get
(long key) Gets the value in the map with the specified key.boolean
isEmpty()
keySet()
Puts the given entry into the map.void
remove
(long key) Removes the entry with the specified key.int
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
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Constructor Details
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EmptyMap
private EmptyMap()
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Method Details
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get
Description copied from interface:LongObjectMap
Gets the value in the map with the specified key.- Specified by:
get
in interfaceLongObjectMap<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.
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put
Description copied from interface:LongObjectMap
Puts the given entry into the map.- Specified by:
put
in interfaceLongObjectMap<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.
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remove
Description copied from interface:LongObjectMap
Removes the entry with the specified key.- Specified by:
remove
in interfaceLongObjectMap<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.
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size
public int size() -
isEmpty
public boolean isEmpty() -
containsKey
- Specified by:
containsKey
in interfaceMap<Long,
Object>
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clear
public void clear() -
keySet
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containsKey
public boolean containsKey(long key) Description copied from interface:LongObjectMap
Indicates whether or not this map contains a value for the specified key.- Specified by:
containsKey
in interfaceLongObjectMap<Object>
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containsValue
- Specified by:
containsValue
in interfaceMap<Long,
Object>
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entries
Description copied from interface:LongObjectMap
Gets an iterable to traverse over the primitive entries contained in this map. As an optimization, theLongObjectMap.PrimitiveEntry
s returned by theinvalid reference
Iterator
invalid reference
Iterator
LongObjectMap.PrimitiveEntry
key/value stability.- Specified by:
entries
in interfaceLongObjectMap<Object>
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get
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put
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remove
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putAll
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values
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entrySet
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