org.cristalise.kernel.lifecycle.routingHelpers

Class ViewpointDataHelper

java.lang.Object

org.cristalise.kernel.lifecycle.routingHelpers.ViewpointDataHelper

All Implemented Interfaces:

DataHelper

public class ViewpointDataHelper
extends Object
implements DataHelper

Implements the DataHelper to get Outcome data using Viewpoint and XPath.

Constructor Summary

Constructors

Constructor and Description
ViewpointDataHelper()

Method Summary

Modifier and Type	Method and Description
String	get(ItemPath itemPath, String actContext, String dataPath, Object locker) dataPath syntax is used for search : viewpoint:/xpath/to/field

Methods inherited from class java.lang.Object

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

Constructor Detail

ViewpointDataHelper

public ViewpointDataHelper()

Method Detail

get

public String get(ItemPath itemPath,
                  String actContext,
                  String dataPath,
                  Object locker)
           throws InvalidDataException,
                  PersistencyException,
                  ObjectNotFoundException

dataPath syntax is used for search : viewpoint:/xpath/to/field

Specified by:

get in interface DataHelper

Parameters:

itemPath - the current item to be used

actContext - the current Activity path in which the DataHelper is used

dataPath - its content is implementation specific

locker - the transaction locker object used for ClusterStorage methods

Returns:

The resolved value

Throws:

InvalidDataException - data inconsistency

PersistencyException - persistency issue

ObjectNotFoundException - object was not found