The Oracle I/PM API provides several document retrieval operations on the DocumentContentService. All of the retrieval methods accept the unique document identifier as input and return document content as a javax.activation.DataHandler.
When processing the DataHandler results, calling code should assume that the DataHandler is a wrapper around an open stream to the server and should process the results immediately, either by persisting the content to an output stream, such as a file, using the DataHandler.writeTo method, or by reading the input stream directly by using the DataHandler.getInputStream method. If the input stream is accessed directly, the caller must be sure to close the stream when the reading of the stream is complete.
Some of the retrieval methods that perform rendering operations on the original document in its native format, also accept additional parameters for controlling the rendering process.
This section covers the following topics: