org.plasma.sdo.xpath
Class DataGraphNodeAdapter

java.lang.Object
  org.plasma.sdo.xpath.DataGraphNodeAdapter

Direct Known Subclasses:

XPathDataObject, XPathDataProperty, XPathDataValue

public abstract class DataGraphNodeAdapter
extends Object

Wraps a result or "endpoint" of a Jaxen XPATH parse, supplying source traversal information, e.g. the Data Object and Property which served as the source or "parent" of a particular traversal path.

Field Summary

protected DataObject	source
protected Property	sourceProperty

Constructor Summary

DataGraphNodeAdapter(DataObject source, Property sourceProperty)

Method Summary

abstract Object	get() Returns the dereferenced value of an XPATH parse result.
DataObject	getSource() Returns the data object traversal source
Property	getSourceProperty() Returns the property traversal source
abstract void	set(Object value) Sets the given value into the XPATH parse result.

Methods inherited from class java.lang.Object

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

Field Detail

source

protected DataObject source

sourceProperty

protected Property sourceProperty

Constructor Detail

DataGraphNodeAdapter

public DataGraphNodeAdapter(DataObject source,
                            Property sourceProperty)

Method Detail

get

public abstract Object get()

Returns the dereferenced value of an XPATH parse result. This method generalizes how subclasses containing either data xpath result (e.g. a Data Object or value) or meta-data xpath results (e.g. a Property) return or dereference the results differently.

Returns:

the result

set

public abstract void set(Object value)

Sets the given value into the XPATH parse result. Abstract method to generalize how subclasses containing either data xpath result (e.g. a Data Object or value) or meta-data xpath results (e.g. a Property) dereference the results differently.

getSource

public DataObject getSource()

Returns the data object traversal source

Returns:

the source data object

getSourceProperty

public Property getSourceProperty()

Returns the property traversal source

Returns:

the source property