EDOBE XDOM PMML Manuel d'utilisateur télécharger pdf (Page 7)

EXTENSION FILES

The Spotfire Miner software is implemented using a large number of

Java and C++ object files, image files, etc, stored in various

subdirectories within the Spotfire Miner installation directory. It is

possible to extend Spotfire Miner by adding additional files to various

subdirectories, but it is difficult to keep track of the multiple files

implementing an extension. Spotfire Miner supports an extension

mechanism where all of the files implementing an individual

extension can be placed within a single new directory. A single

extension may implement more than one node; normally, an

extension would contain a set of related nodes.

When Spotfire Miner starts, it looks for a directory named

extensions within the Spotfire Miner installation directory. If this

directory exists, each subdirectory under extensions is processed to

load each extension. Next, Spotfire Miner looks for a directory

named extensions in the user’s work directory and processes any

subdirectories of this as additional extensions. (The user’s default

work directory is depends on the operating system.) Extensions are

loaded from both places so that stable extensions to be used by

multiple users can be defined once (in the Spotfire Miner installation

directory), and users can develop new extensions in their own

directories.

Extensions are only processed when Spotfire Miner is started. There

is currently no way to dynamically add or remove extensions from

Spotfire Miner while it is executing.

To create an extension, create a new subdirectory within the

extensions directory (in the Spotfire Miner installation directory, or

the user work directory). The name of this subdirectory is not

important; it is useful to give it a name that identifies the extension,

but the directory name is not otherwise interpreted. All of the files

implementing the extension should be stored within this directory.

This would normally include:

• An XML file describing the extension nodes.

• A small icon file for each node, used in the Explorer pane.

• A large icon file for each node, used in the worksheet.

• A Java jar file containing the Java class files.

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EDOBE XDOM PMML Manuel d'utilisateur Page 7