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A Provider implementation can accept and return objects that are derived from the javax.xml.transform.Source interface. Source objects are low level objects that hold XML documents. Each Source implementation provides methods that access the stored XML documents and manipulate its contents. The following objects implement the Source interface:

DOMSource

Holds XML messages as a Document Object Model(DOM) tree. The XML message is stored as a set of Node objects that are accessed using the getNode() method. Nodes can be either updated or added to the DOM tree using the setNode() method.

SAXSource

Holds XML messages as a Simple API for XML (SAX) object. SAX objects contain an InputSource object that holds the raw data and an XMLReader object that parses the raw data.

StreamSource

Holds XML messages as a data stream. The data stream can be manipulated the same as any other data stream.

If you create your Provider object so that it uses generic Source objects, Fuse Services Framework returns the messages as SAXSource objects.

This behavior can be changed using the endpoint's source-preferred-format property. See Configuring Web Service Endpoints for information about configuring the Fuse Services Framework runtime.

[Important]Important

When using Source objects the developer is responsible for ensuring that all required binding specific wrappers are added to the message. For example, when interacting with a service expecting SOAP messages, the developer must ensure that the required SOAP envelope is added to the outgoing request and that the SOAP envelope's contents are correct.

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