Package jadex.collection

Class RwMapWrapper<K,V>

java.lang.Object

jadex.collection.RwMapWrapper<K,V>

All Implemented Interfaces:

IRwDataStructure, Map<K,V>

public class RwMapWrapper<K,V>
extends Object
implements IRwDataStructure, Map<K,V>

Thread-safe wrapper for maps that uses a read/write lock.

Nested Class Summary

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

Map.Entry<K extends Object,V extends Object>

Field Summary

Fields

Modifier and Type	Field	Description
protected Map<K,V>	map	The wrapped map.

Constructor Summary

Constructors

Constructor	Description
RwMapWrapper(Map<K,V> map)	Creates the wrapper.
RwMapWrapper(Map<K,V> map, boolean fair)	Creates the wrapper.
RwMapWrapper(Map<K,V> map, ReadWriteLock lock)	Creates the wrapper with a specific internal lock.

Method Summary

Modifier and Type	Method	Description
void	clear()	Clears the map.
boolean	containsKey(Object key)	Returns if the map contains a key.
boolean	containsValue(Object value)	Returns if the map contains a value.
Set<Map.Entry<K,V>>	entrySet()	Returns the entry set.
V	get(Object key)	Gets the value for the key.
jadex.common.RwAutoLock	getAutoLock()	Gets the internal auto lock.
boolean	isEmpty()	Returns if map is empty.
Set<K>	keySet()	Returns the key set.
V	put(K key, V value)	Puts a key-value pair.
void	putAll(Map<? extends K,? extends V> m)	Puts all key-value pairs into map.
V	remove(Object key)	Removes a key-value pair.
int	size()	Returns the size of the map.
Collection<V>	values()	Returns the key values.

Methods inherited from class java.lang.Object

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

Methods inherited from interface jadex.collection.IRwDataStructure

getLock, getReadLock, getWriteLock, readLock, writeLock

Methods inherited from interface java.util.Map

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

Field Details

map

protected Map<K,V> map

The wrapped map.

Constructor Details

RwMapWrapper

public RwMapWrapper(Map<K,V> map)

Creates the wrapper.

Parameters:

map - The wrapped map.

RwMapWrapper

public RwMapWrapper(Map<K,V> map,
 ReadWriteLock lock)

Creates the wrapper with a specific internal lock.

Parameters:

map - The wrapped map.

RwMapWrapper

public RwMapWrapper(Map<K,V> map,
 boolean fair)

Creates the wrapper.

Parameters:

map - The wrapped map.

fair - Set true for fair-mode lock.

Method Details

size

public int size()

Returns the size of the map.

Specified by:

size in interface Map<K,V>

isEmpty

public boolean isEmpty()

Returns if map is empty.

Specified by:

isEmpty in interface Map<K,V>

containsKey

public boolean containsKey(Object key)

Returns if the map contains a key.

Specified by:

containsKey in interface Map<K,V>

containsValue

public boolean containsValue(Object value)

Returns if the map contains a value.

Specified by:

containsValue in interface Map<K,V>

get

public V get(Object key)

Gets the value for the key.

Specified by:

get in interface Map<K,V>

put

public V put(K key,
 V value)

Puts a key-value pair.

Specified by:

put in interface Map<K,V>

remove

public V remove(Object key)

Removes a key-value pair.

Specified by:

remove in interface Map<K,V>

putAll

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

Puts all key-value pairs into map.

Specified by:

putAll in interface Map<K,V>

clear

public void clear()

Clears the map.

Specified by:

clear in interface Map<K,V>

keySet

public Set<K> keySet()

Returns the key set. Warning: Use manual locking.

Specified by:

keySet in interface Map<K,V>

values

public Collection<V> values()

Returns the key values. Warning: Use manual locking.

Specified by:

values in interface Map<K,V>

entrySet

public Set<Map.Entry<K,V>> entrySet()

Returns the entry set. Warning: Use manual locking.

Specified by:

entrySet in interface Map<K,V>

getAutoLock

public jadex.common.RwAutoLock getAutoLock()

Gets the internal auto lock.

Specified by:

getAutoLock in interface IRwDataStructure

Returns:

The lock.