org.mini2Dx.core.collections.concurrent

Class ConcurrentByteTreeMap<T>

java.lang.Object

org.mini2Dx.core.collections.ByteMap<V>

org.mini2Dx.core.collections.ByteTreeMap<T>

org.mini2Dx.core.collections.concurrent.ConcurrentByteTreeMap<T>

All Implemented Interfaces:

java.lang.Iterable<ByteMap.Entry<T>>, ConcurrentCollection

public class ConcurrentByteTreeMap<T>
extends ByteTreeMap<T>
implements ConcurrentCollection

Nested Class Summary

Nested classes/interfaces inherited from class org.mini2Dx.core.collections.ByteTreeMap

ByteTreeMap.SortedKeys

Nested classes/interfaces inherited from class org.mini2Dx.core.collections.ByteMap

ByteMap.Entries<V>, ByteMap.Entry<V>, ByteMap.Keys, ByteMap.Values<V>

Field Summary

Fields

Modifier and Type	Field and Description
protected org.mini2Dx.lockprovider.ReadWriteLock	lock

Fields inherited from class org.mini2Dx.core.collections.ByteMap

size

Constructor Summary

Constructors

Constructor and Description
ConcurrentByteTreeMap()
ConcurrentByteTreeMap(ByteMap<? extends T> map) NOTE: read access to the other map is not thread-safe
ConcurrentByteTreeMap(int initialCapacity)
ConcurrentByteTreeMap(int initialCapacity, float loadFactor)

Method Summary

Modifier and Type	Method and Description
ByteMap.Keys	ascendingKeys()
void	clear()
void	clear(int maximumCapacity) Clears the map and reduces the size of the backing arrays to be the specified capacity if they are larger.
boolean	containsKey(byte key)
boolean	containsValue(java.lang.Object value, boolean identity) Returns true if the specified value is in the map.
ByteMap.Keys	descendingKeys()
void	ensureCapacity(int additionalCapacity) Increases the size of the backing array to accommodate the specified number of additional items.
ByteMap.Entries<T>	entries() Returns an iterator for the entries in the map.
boolean	equals(java.lang.Object object)
byte	findKey(java.lang.Object value, boolean identity, byte notFound) Returns the key for the specified value, or notFound if it is not in the map.
T	get(byte key, T defaultValue)
org.mini2Dx.lockprovider.ReadWriteLock	getLock() Returns the collection's ReadWriteLock
int	hashCode()
ByteMap.Keys	keys() Returns an iterator for the keys in the map.
T	put(byte key, T value)
void	putAll(ByteMap<T> map)
boolean	putIfAbsent(byte key, T value) Puts a key/value if the key is not already present
boolean	putIfPresent(byte key, T value) Puts a key/value if the key is already present
T	remove(byte key)
void	shrink(int maximumCapacity) Reduces the size of the backing arrays to be the specified capacity or less.
int	size() Returns the size in a thread-safe manner
java.lang.String	toString()
ByteMap.Values<T>	values() Returns an iterator for the values in the map.

Methods inherited from class org.mini2Dx.core.collections.ByteMap

get, iterator

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Field Detail

lock

protected org.mini2Dx.lockprovider.ReadWriteLock lock

Constructor Detail

ConcurrentByteTreeMap

public ConcurrentByteTreeMap()

ConcurrentByteTreeMap

public ConcurrentByteTreeMap(int initialCapacity)

ConcurrentByteTreeMap

public ConcurrentByteTreeMap(int initialCapacity,
                             float loadFactor)

ConcurrentByteTreeMap

public ConcurrentByteTreeMap(ByteMap<? extends T> map)

NOTE: read access to the other map is not thread-safe

Parameters:

map -

Method Detail

size

public int size()

Returns the size in a thread-safe manner

Returns:

0 if empty

put

public T put(byte key,
             T value)

Overrides:

put in class ByteTreeMap<T>

putIfAbsent

public boolean putIfAbsent(byte key,
                           T value)

Puts a key/value if the key is not already present

Parameters:

key - The key to put if absent

value - The value to put if absent

Returns:

True if the value was put

putIfPresent

public boolean putIfPresent(byte key,
                            T value)

Puts a key/value if the key is already present

Parameters:

key - The key to put if present

value - The value to put if present

Returns:

True if the value was put

putAll

public void putAll(ByteMap<T> map)

Overrides:

putAll in class ByteTreeMap<T>

get

public T get(byte key,
             T defaultValue)

Overrides:

get in class ByteMap<T>

remove

public T remove(byte key)

Overrides:

remove in class ByteTreeMap<T>

shrink

public void shrink(int maximumCapacity)

Description copied from class: ByteMap

Reduces the size of the backing arrays to be the specified capacity or less. If the capacity is already less, nothing is done. If the map contains more items than the specified capacity, the next highest power of two capacity is used instead.

Overrides:

shrink in class ByteMap<T>

clear

public void clear(int maximumCapacity)

Description copied from class: ByteMap

Clears the map and reduces the size of the backing arrays to be the specified capacity if they are larger.

Overrides:

clear in class ByteTreeMap<T>

clear

public void clear()

Overrides:

clear in class ByteTreeMap<T>

containsValue

public boolean containsValue(java.lang.Object value,
                             boolean identity)

Description copied from class: ByteMap

Returns true if the specified value is in the map. Note this traverses the entire map and compares every value, which may be an expensive operation.

Overrides:

containsValue in class ByteMap<T>

containsKey

public boolean containsKey(byte key)

Overrides:

containsKey in class ByteMap<T>

findKey

public byte findKey(java.lang.Object value,
                    boolean identity,
                    byte notFound)

Description copied from class: ByteMap

Returns the key for the specified value, or notFound if it is not in the map. Note this traverses the entire map and compares every value, which may be an expensive operation.

Overrides:

findKey in class ByteMap<T>

identity - If true, uses == to compare the specified value with values in the map. If false, uses ByteMap.equals(Object).

ensureCapacity

public void ensureCapacity(int additionalCapacity)

Description copied from class: ByteMap

Increases the size of the backing array to accommodate the specified number of additional items. Useful before adding many items to avoid multiple backing array resizes.

Overrides:

ensureCapacity in class ByteMap<T>

hashCode

public int hashCode()

Overrides:

hashCode in class ByteMap<T>

equals

public boolean equals(java.lang.Object object)

Overrides:

equals in class ByteMap<T>

toString

public java.lang.String toString()

Overrides:

toString in class ByteMap<T>

entries

public ByteMap.Entries<T> entries()

Description copied from class: ByteMap

Returns an iterator for the entries in the map. Remove is supported. Note that the same iterator instance is returned each time this method is called. Use the ByteMap.Entries constructor for nested or multithreaded iteration.

Overrides:

entries in class ByteMap<T>

values

public ByteMap.Values<T> values()

Description copied from class: ByteMap

Returns an iterator for the values in the map. Remove is supported. Note that the same iterator instance is returned each time this method is called. Use the ByteMap.Entries constructor for nested or multithreaded iteration.

Overrides:

values in class ByteMap<T>

keys

public ByteMap.Keys keys()

Description copied from class: ByteMap

Returns an iterator for the keys in the map. Remove is supported. Note that the same iterator instance is returned each time this method is called. Use the ByteMap.Entries constructor for nested or multithreaded iteration.

Overrides:

keys in class ByteMap<T>

ascendingKeys

public ByteMap.Keys ascendingKeys()

Overrides:

ascendingKeys in class ByteTreeMap<T>

descendingKeys

public ByteMap.Keys descendingKeys()

Overrides:

descendingKeys in class ByteTreeMap<T>

getLock

public org.mini2Dx.lockprovider.ReadWriteLock getLock()

Description copied from interface: ConcurrentCollection

Returns the collection's ReadWriteLock

Specified by:

getLock in interface ConcurrentCollection

Returns:

the collection's ReadWriteLock