EDOBE XDOM PMML Manuel d'utilisateur télécharger pdf (Page 27)

An example execute() method is in the section Simple Java Version

on page 28.

C++ Procs If the computation is to be performed in C++, the CNKProc class will

be a simple class extending

CNKProc with information on what C++

class to use. This information is specified in the

createPeerObject()

method.

public void createPeerObject() {

createCNKObject(“cnkmisc”,

new String[] { "CNKProcKMeans", "CNKProc",

"CNKObj" });

}

The section The TIBCO Spotfire Pipeline on page 50 discusses the

C++ pipeline classes including the C++

CNKProc class that will be

extended to perform the computations in C++. An example using

C++ is available in the section Simple C++ Version on page 32.

C++ Tips Here are some useful tips regarding the computational code

requirements.

• When creating a Java node calling a C++, the

createPeerObject() method is the key Java method. This

specifies the peer C++ class, and which shared object library

to load.

• When creating a C++ proc, the key methods are the

constructor, destructor,

init(), execute(), setProperty(),

and

getProperty().

• In a C++ proc, be sure to call the super-class

init() method

from the

init() method in your child class.

• In a C++ proc, be sure to set and get the properties using

consistent types. If you set a property as one type and get it as

another, the result will be incorrect.

• In a C++ proc, be sure to include the

CNK_DEFINE_ACCESSIBLE_CLASS macro at the top of your code.

This is necessary for the C++ CNKProc object to be created.

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EDOBE XDOM PMML Manuel d'utilisateur Page 27