com.orchestranetworks.service

Class NodeDataTransformer

java.lang.Object

com.orchestranetworks.service.NodeDataTransformer

public abstract class NodeDataTransformer
extends Object

This class allows the transformation of data. It can be used for anonymization purposes.

Definition in the data model

The transformation class must be declared under the element xs:annotation/xs:appinfo

 <osd:transform class="com.foo.MyTransformation" />
 

where com.foo.MyTransformation is the fully qualified name of the class extending NodeDataTransformer. It is also possible to set additional JavaBean properties:

 <osd:transform class="com.foo.MyTransformation">
         <param1>...</param1>
         <param2>...</param2>
 </osd:transform>
 

where param1 and param2 are JavaBean properties of the specified class.

For more information, see the JavaBean specification.

Life cycle

1. When the data model is loaded, the specified class is instantiated through its default constructor and the JavaBean property setters are called (in the example above, setParam1(...) and setParam2(...));
2. During the operational phase, the method transformOnExport(Object, NodeDataTransformerContext) is called for each value to export to an archive.

Constructor Summary

Constructors

Constructor and Description
NodeDataTransformer()

Method Summary

Modifier and Type	Method and Description
abstract Object	transformOnExport(Object rawValue, NodeDataTransformerContext aContext) Method called when exporting an archive or performing a D3 broadcast.

Methods inherited from class java.lang.Object

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

Constructor Detail

NodeDataTransformer

public NodeDataTransformer()

Method Detail

transformOnExport

public abstract Object transformOnExport(Object rawValue,
                                         NodeDataTransformerContext aContext)

Method called when exporting an archive or performing a D3 broadcast.

This method is not called if the current node is not a terminal node, is a computed value node, or the current value is the inherit indicator.

Otherwise, this method is called for each value of the associated node to be exported.

Parameters:

rawValue - the value as it is persisted in the repository.

aContext - can be used to access other local values or to know more about the execution context.

Returns:

the value to be exported. It must comply with the rules for mapping data types. For instance, if the associated node has maxOccurs > 1, a List must be returned.