org.exoplatform.services.jcr.ext.distribution.impl

Class DataDistributionByHash

java.lang.Object

org.exoplatform.services.jcr.ext.distribution.impl.AbstractDataDistributionType

org.exoplatform.services.jcr.ext.distribution.impl.DataDistributionByHash

All Implemented Interfaces:

DataDistributionType

public class DataDistributionByHash
extends AbstractDataDistributionType

It will generate from the data id an hash code thanks to an hashing function then with this hash code it will be able to generate a hierarchy of sub-nodes with n levels of depth for example with n = 4 and MD5 as hashing function: For "john.smith" with MD5, the hash code in base 32 is 12spjkm4fhsrl151pva3f7mf1r, so the path would be "1/2/s/john.smith"

Version:

$Id$

Author:

Nicolas Filotto

Constructor Summary

Constructors

Constructor and Description
DataDistributionByHash()

Method Summary

Modifier and Type	Method and Description
protected List<String>	getAncestors(String dataId) Gives the list of all the name of the ancestors
protected boolean	useParametersOnLeafOnly() Indicates whether or not the node type, the mixin types and the permissions have to be used on leaf node only.

Methods inherited from class org.exoplatform.services.jcr.ext.distribution.impl.AbstractDataDistributionType

createNode, getDataNode, getOrCreateDataNode, getOrCreateDataNode, getOrCreateDataNode, getOrCreateDataNode, getRelativePath, migrate, migrate, removeDataNode

Methods inherited from class java.lang.Object

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

Constructor Detail

DataDistributionByHash

public DataDistributionByHash()

Method Detail

getAncestors

protected List<String> getAncestors(String dataId)

Gives the list of all the name of the ancestors

Specified by:

getAncestors in class AbstractDataDistributionType

Parameters:

dataId - the id of the data to find/create

Returns:

the list of the ancestor names

useParametersOnLeafOnly

protected boolean useParametersOnLeafOnly()

Indicates whether or not the node type, the mixin types and the permissions have to be used on leaf node only.

Specified by:

useParametersOnLeafOnly in class AbstractDataDistributionType

Returns:

true if only the leaf node has to be created with the parameters false otherwise.