com.devexperts.util

Class Indexer<K,V>

java.lang.Object

com.devexperts.util.Indexer<K,V>

All Implemented Interfaces:

IndexerFunction<K,V>, Serializable

Direct Known Subclasses:

IdentityIndexer, NumberKeyIndexer

Deprecated.

Use a functional interface IndexerFunction instead.

@Deprecated
public abstract class Indexer<K,V>
extends Object
implements IndexerFunction<K,V>

A strategy that distinguishes and identifies elements in an IndexedSet and IndexedMap.

The Indexer is Serializable, so that all concrete subclasses shall be serializable in order to support serialization of indexed set and map..

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from interface com.devexperts.util.IndexerFunction

IndexerFunction.DefaultIdentityKey, IndexerFunction.DefaultIndexerFunction, IndexerFunction.IdentityKey<K,V>, IndexerFunction.IntKey<V>, IndexerFunction.LongKey<V>

Field Summary

Fields

Modifier and Type	Field and Description
static Indexer	DEFAULT Deprecated. Default strategy that treats values as their own keys (key == value) and delegates to Object.hashCode() and Object.equals(Object) methods as appropriate.

Fields inherited from interface com.devexperts.util.IndexerFunction

DEFAULT_IDENTITY_KEY

Constructor Summary

Constructors

Constructor and Description
Indexer() Deprecated.

Method Summary

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.devexperts.util.IndexerFunction

getNumberKey, getObjectKey, hashCodeByKey, hashCodeByKey, hashCodeByValue, matchesByKey, matchesByKey, matchesByValue

Field Detail

DEFAULT

public static final Indexer DEFAULT

Deprecated.

Default strategy that treats values as their own keys (key == value) and delegates to Object.hashCode() and Object.equals(Object) methods as appropriate. This strategy does not support primitive keys.

This strategy basically turns IndexedSet into plain hash set of objects and IndexedMap into a self-reference mapping.

Constructor Detail

Indexer

public Indexer()

Deprecated.