Chapter Seven. Message Construction
Introduction
This chapter discusses the [EIP] concept of Message, how it is manifested in Java CAPS, and the related Java CAPS concept of Object Type Definitions (OTDs). It discusses briefly how OTDs can be built from database tables, views, and stored procedures; XML Schemas and other source formats; how to marshal (serialize) and unmarshal (deserialize) them; how to manipulate them; and how to use them for transformations and connector operations.
The [EIP] Envelope Wrapper pattern is also discussed. Diverse implementations of the pattern, intended to convey metadata with message payload, use different Java CAPS facilities ranging from a user-defined custom Envelope Wrapper OTD, to carrying unparsed XML within ...
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