Jump to: navigation, search

Difference between revisions of "EclipseLink/Examples/SDO/JAXB"

(Create the JAXBHelperContext)
(Create the JAXBHelperContext)
Line 5: Line 5:
 
==Create the JAXBHelperContext==
 
==Create the JAXBHelperContext==
 
The JAXBHelperContext is instantiated using a JAXBContext.  This JAXBContext represents the object-to-XML mapping for the POJOs.  If static DataObjects are being used, a second constructor is offered that takes a ClassLoader as a parameter.
 
The JAXBHelperContext is instantiated using a JAXBContext.  This JAXBContext represents the object-to-XML mapping for the POJOs.  If static DataObjects are being used, a second constructor is offered that takes a ClassLoader as a parameter.
 
+
<pre>
 +
JAXBContext jaxbContext = JAXBContext.newInstance("com.example.customer");
 +
JAXBHelperContext jaxbHelperContext = new JAXBHelperContext(jaxbContext);
 +
</pre>
 
For help on creating a JAXBContext see:
 
For help on creating a JAXBContext see:
 
* [[EclipseLink/Examples/MOXy/JAXB#Creating_a_JAXBContext_using_jaxb.properties | Creating a JAXBContext using jaxb.properties]]
 
* [[EclipseLink/Examples/MOXy/JAXB#Creating_a_JAXBContext_using_jaxb.properties | Creating a JAXBContext using jaxb.properties]]

Revision as of 10:33, 30 January 2009

Overview

The JAXBHelperContext is a bridge between POJOs and SDO DataObjects. The bridge is based on their corresponding XML representations. For the POJOs the XML representation is specified using JAXB annotations or object-to-XML mappings.

Create the JAXBHelperContext

The JAXBHelperContext is instantiated using a JAXBContext. This JAXBContext represents the object-to-XML mapping for the POJOs. If static DataObjects are being used, a second constructor is offered that takes a ClassLoader as a parameter.

JAXBContext jaxbContext = JAXBContext.newInstance("com.example.customer");
JAXBHelperContext jaxbHelperContext = new JAXBHelperContext(jaxbContext);

For help on creating a JAXBContext see:

Define the SDO Metadata

Get the SDO Type for a POJO

Convert a POJO to a SDO DataObject

Convert a SDO DataObject to a POJO