com.devexperts.util

Class IdentityIndexer<K,V>

java.lang.Object

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

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

All Implemented Interfaces:

IndexerFunction<K,V>, IndexerFunction.IdentityKey<K,V>, Serializable

Deprecated.

Use IndexerFunction.IdentityKey

@Deprecated
public abstract class IdentityIndexer<K,V>
extends Indexer<K,V>
implements IndexerFunction.IdentityKey<K,V>

An implementation of IndexerFunction that distinguishes and identifies elements using identity comparison of object keys.

It uses System.identityHashCode(Object) method instead of Object.hashCode() method to compute hashcode and reference comparison instead of Object.equals(Object) method to determine identity.

The IdentityIndexer 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 inherited from class com.devexperts.util.Indexer

DEFAULT

Fields inherited from interface com.devexperts.util.IndexerFunction

DEFAULT, DEFAULT_IDENTITY_KEY

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	IdentityIndexer() Deprecated. Sole constructor; for invocation by subclass constructors, typically implicit.

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.IdentityKey

hashCodeByKey, matchesByKey

Methods inherited from interface com.devexperts.util.IndexerFunction

getNumberKey, getObjectKey, hashCodeByKey, hashCodeByValue, matchesByKey, matchesByValue

Constructor Detail

IdentityIndexer

protected IdentityIndexer()

Deprecated.

Sole constructor; for invocation by subclass constructors, typically implicit.

This implementation does nothing.