Package com.tangosol.util

Class SparseArray<V>

java.lang.Object

com.tangosol.util.AbstractLongArray<V>

com.tangosol.util.AbstractSparseArray<V>

com.tangosol.util.SparseArray<V>

All Implemented Interfaces:

LongArray<V>, Serializable, Cloneable, Iterable<V>

public class SparseArray<V>
extends AbstractSparseArray<V>

A data structure resembling an Object array indexed by long values. This data structure is not thread safe and if there exists the possibility that some thread may perform a mutation while other thread(s) are reading/iterating then some form of locking is required to protect the SparseArray. Note that concurrent readers are allowed, thus protecting the SparseArray with a read-write would be appropriate. See SafeLongArray, ReadHeavyLongArray, and CopyOnWriteLongArray for thread-safe LongArray implementations.

Author:

cp 2007.10.08

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
protected static class	SparseArray.ObjectNode<V>	Node mapping long key to Object value.

Nested classes/interfaces inherited from class com.tangosol.util.AbstractSparseArray

AbstractSparseArray.Crawler, AbstractSparseArray.Node<V>

Nested classes/interfaces inherited from interface com.tangosol.util.LongArray

LongArray.Iterator<V>

Field Summary

Fields inherited from class com.tangosol.util.AbstractSparseArray

m_head, m_size

Fields inherited from interface com.tangosol.util.LongArray

NOT_FOUND

Constructor Summary

Constructors

Constructor	Description
SparseArray()

Method Summary

Modifier and Type	Method	Description
SparseArray<V>	clone()	Make a clone of the LongArray.
protected AbstractSparseArray.Node<V>	instantiateNode(long lKey, V oValue)	Factory pattern: create a new Node with the specified key and value.

Methods inherited from class com.tangosol.util.AbstractSparseArray

adjustDoubleBalance, balancedInsertion, balancePostRemove, ceiling, ceilingIndex, clear, doubleRotate, exists, find, findInsertionPoint, floor, floorIndex, get, getFirstIndex, getLastIndex, getSize, instantiateCrawler, iterator, iterator, print, remove, remove, remove, replace, reverseIterator, reverseIterator, rotate, set, validate

Methods inherited from class com.tangosol.util.AbstractLongArray

add, contains, equals, hashCode, indexOf, indexOf, isEmpty, lastIndexOf, lastIndexOf, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Methods inherited from interface com.tangosol.util.LongArray

keys

Constructor Detail

SparseArray

public SparseArray()

Method Detail

instantiateNode

protected AbstractSparseArray.Node<V> instantiateNode(long lKey,
                                                      V oValue)

Factory pattern: create a new Node with the specified key and value.

Specified by:

instantiateNode in class AbstractSparseArray<V>

Parameters:

lKey - the long key

oValue - the object value

Returns:

the new node

clone

public SparseArray<V> clone()

Description copied from class: AbstractSparseArray

Make a clone of the LongArray. The element values are not deep-cloned.

Specified by:

clone in interface LongArray<V>

Overrides:

clone in class AbstractSparseArray<V>

Returns:

a clone of this LongArray object