org.infinispan.query.backend
Class KeyTransformationHandler

java.lang.Object
  org.infinispan.query.backend.KeyTransformationHandler

public class KeyTransformationHandler
extends Object

This transforms arbitrary keys to a String which can be used by Lucene as a document identifier, and vice versa.

There are 2 approaches to doing so; one for SimpleKeys: Java primitives (and their object wrappers) and Strings, and one for custom, user-defined types that could be used as keys.

For SimpleKeys, users don't need to do anything, these keys are automatically transformed by this class.

For user-defined keys, only types annotated with @Transformable, and declaring an appropriate Transformer implementation, are supported.

Since:

4.0

Author:

Manik Surtani

See Also:

Transformable, Transformer

Constructor Summary

KeyTransformationHandler()

Method Summary

static String	keyToString(Object key)
static Object	stringToKey(String s)

Methods inherited from class java.lang.Object

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

Constructor Detail

KeyTransformationHandler

public KeyTransformationHandler()

Method Detail

stringToKey

public static Object stringToKey(String s)

keyToString

public static String keyToString(Object key)