org.apache.jackrabbit.mk.store
Class IdFactory

java.lang.Object
  org.apache.jackrabbit.mk.store.IdFactory

public abstract class IdFactory
extends Object

Create new internal content object ids based on serialized data.

Constructor Summary

IdFactory()

Method Summary

byte[]	createContentId(byte[] serialized) Creates a new id based on the specified serialized data.
protected byte[]	digest(byte[] data) Return a digest for some data.
static IdFactory	getDigestFactory() Return the default factory that will create node and revision ids based on their content.

Methods inherited from class java.lang.Object

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

Constructor Detail

IdFactory

public IdFactory()

Method Detail

createContentId

public byte[] createContentId(byte[] serialized)
                       throws Exception

Creates a new id based on the specified serialized data.

The general contract of createContentId is:

createId(data1).equals(createId(data2)) == Arrays.equals(data1, data2)

Parameters:

serialized - serialized data

Returns:

raw node id as byte array

Throws:

Exception - if an error occurs

digest

protected byte[] digest(byte[] data)
                 throws Exception

Return a digest for some data.

Parameters:

data - data

Returns:

digest

Throws:

Exception

getDigestFactory

public static IdFactory getDigestFactory()

Return the default factory that will create node and revision ids based on their content.

Returns:

factory