org.apache.jackrabbit.oak.plugins.version

Class DateVersionSelector

java.lang.Object

org.apache.jackrabbit.oak.plugins.version.DateVersionSelector

All Implemented Interfaces:

VersionSelector

public class DateVersionSelector
extends java.lang.Object
implements VersionSelector

Inspired by Jackrabbit 2.x

This Class implements a version selector that selects a version by creation date. The selected version is the latest that is older or equal than the given date. If no version could be found null is returned unless the returnLatest flag is set to true, where the latest version is returned.

 V1.0 - 02-Sep-2006
 V1.1 - 03-Sep-2006
 V1.2 - 05-Sep-2006

 new DateVersionSelector("03-Sep-2006").select() -> V1.1
 new DateVersionSelector("04-Sep-2006").select() -> V1.1
 new DateVersionSelector("01-Sep-2006").select() -> null
 new DateVersionSelector("01-Sep-2006", true).select() -> V1.2
 new DateVersionSelector(null, true).select() -> V1.2
 

Constructor Summary

Constructors

Constructor and Description
DateVersionSelector(java.lang.String timestamp) Creates a DateVersionSelector that will select the latest version of all those that are older than the given timestamp.

Method Summary

Modifier and Type	Method and Description
NodeBuilder	select(NodeBuilder history) Selects a version of the given version history.

Methods inherited from class java.lang.Object

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

Constructor Detail

DateVersionSelector

public DateVersionSelector(java.lang.String timestamp)

Creates a DateVersionSelector that will select the latest version of all those that are older than the given timestamp.

Parameters:

timestamp - reference timestamp

Method Detail

select

public NodeBuilder select(NodeBuilder history)
                   throws RepositoryException

Description copied from interface: VersionSelector

Selects a version of the given version history. If this VersionSelector is unable to select one, it can return null. Please note, that a version selector is not allowed to return the root version.

Specified by:

select in interface VersionSelector

Parameters:

history - version history to select a version from

Returns:

A version or null.

Throws:

RepositoryException - if an error occurs.