Wrapping Up

Wrapping Up

Using SAAJ makes it fairly easy to construct SOAP messages from scratch, and to peruse SOAP messages received from other nodes. While SAAJ is normally used in combination with JAX-RPC or some other API, it can also be used independently, which is why it's a separate API from JAX-RPC.

JAX-RPC's Message Handler API depends heavily on SAAJ to represent incoming and outgoing SOAP messages so that you can manipulate SOAP header blocks. The next chapter explains in detail how to use SAAJ with JAX-RPC message handlers.

This chapter covered the construction of simple SOAP documents using SAAJ, but SAAJ is also designed to model SOAP Messages with Attachments (SwA), the MIME format used to deliver SOAP messages that refer to XML and non-XML data. Because the Basic Profile doesn't support SwA, this subject is addressed in Appendix F: SAAJ Attachments.