Package io.netty.util.collection
Class CharCollections.EmptyMap
- java.lang.Object
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- io.netty.util.collection.CharCollections.EmptyMap
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- All Implemented Interfaces:
CharObjectMap<java.lang.Object>
,java.util.Map<java.lang.Character,java.lang.Object>
- Enclosing class:
- CharCollections
private static final class CharCollections.EmptyMap extends java.lang.Object implements CharObjectMap<java.lang.Object>
An empty map. All operations that attempt to modify the map are unsupported.
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Nested Class Summary
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Nested classes/interfaces inherited from interface io.netty.util.collection.CharObjectMap
CharObjectMap.PrimitiveEntry<V>
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Constructor Summary
Constructors Modifier Constructor Description private
EmptyMap()
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description void
clear()
boolean
containsKey(char key)
Indicates whether or not this map contains a value for the specified key.boolean
containsKey(java.lang.Object key)
boolean
containsValue(java.lang.Object value)
java.lang.Iterable<CharObjectMap.PrimitiveEntry<java.lang.Object>>
entries()
Gets an iterable to traverse over the primitive entries contained in this map.java.util.Set<java.util.Map.Entry<java.lang.Character,java.lang.Object>>
entrySet()
java.lang.Object
get(char key)
Gets the value in the map with the specified key.java.lang.Object
get(java.lang.Object key)
boolean
isEmpty()
java.util.Set<java.lang.Character>
keySet()
java.lang.Object
put(char key, java.lang.Object value)
Puts the given entry into the map.java.lang.Object
put(java.lang.Character key, java.lang.Object value)
void
putAll(java.util.Map<? extends java.lang.Character,?> m)
java.lang.Object
remove(char key)
Removes the entry with the specified key.java.lang.Object
remove(java.lang.Object key)
int
size()
java.util.Collection<java.lang.Object>
values()
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Method Detail
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get
public java.lang.Object get(char key)
Description copied from interface:CharObjectMap
Gets the value in the map with the specified key.- Specified by:
get
in interfaceCharObjectMap<java.lang.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
public java.lang.Object put(char key, java.lang.Object value)
Description copied from interface:CharObjectMap
Puts the given entry into the map.- Specified by:
put
in interfaceCharObjectMap<java.lang.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
public java.lang.Object remove(char key)
Description copied from interface:CharObjectMap
Removes the entry with the specified key.- Specified by:
remove
in interfaceCharObjectMap<java.lang.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()
- Specified by:
size
in interfacejava.util.Map<java.lang.Character,java.lang.Object>
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isEmpty
public boolean isEmpty()
- Specified by:
isEmpty
in interfacejava.util.Map<java.lang.Character,java.lang.Object>
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containsKey
public boolean containsKey(java.lang.Object key)
- Specified by:
containsKey
in interfacejava.util.Map<java.lang.Character,java.lang.Object>
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clear
public void clear()
- Specified by:
clear
in interfacejava.util.Map<java.lang.Character,java.lang.Object>
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keySet
public java.util.Set<java.lang.Character> keySet()
- Specified by:
keySet
in interfacejava.util.Map<java.lang.Character,java.lang.Object>
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containsKey
public boolean containsKey(char key)
Description copied from interface:CharObjectMap
Indicates whether or not this map contains a value for the specified key.- Specified by:
containsKey
in interfaceCharObjectMap<java.lang.Object>
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containsValue
public boolean containsValue(java.lang.Object value)
- Specified by:
containsValue
in interfacejava.util.Map<java.lang.Character,java.lang.Object>
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entries
public java.lang.Iterable<CharObjectMap.PrimitiveEntry<java.lang.Object>> entries()
Description copied from interface:CharObjectMap
Gets an iterable to traverse over the primitive entries contained in this map. As an optimization, theCharObjectMap.PrimitiveEntry
s returned by theIterator
may change as theIterator
progresses. The caller should not rely onCharObjectMap.PrimitiveEntry
key/value stability.- Specified by:
entries
in interfaceCharObjectMap<java.lang.Object>
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get
public java.lang.Object get(java.lang.Object key)
- Specified by:
get
in interfacejava.util.Map<java.lang.Character,java.lang.Object>
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put
public java.lang.Object put(java.lang.Character key, java.lang.Object value)
- Specified by:
put
in interfacejava.util.Map<java.lang.Character,java.lang.Object>
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remove
public java.lang.Object remove(java.lang.Object key)
- Specified by:
remove
in interfacejava.util.Map<java.lang.Character,java.lang.Object>
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putAll
public void putAll(java.util.Map<? extends java.lang.Character,?> m)
- Specified by:
putAll
in interfacejava.util.Map<java.lang.Character,java.lang.Object>
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values
public java.util.Collection<java.lang.Object> values()
- Specified by:
values
in interfacejava.util.Map<java.lang.Character,java.lang.Object>
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entrySet
public java.util.Set<java.util.Map.Entry<java.lang.Character,java.lang.Object>> entrySet()
- Specified by:
entrySet
in interfacejava.util.Map<java.lang.Character,java.lang.Object>
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