org.drools.builder.help
Class KnowledgeBuilderHelper

java.lang.Object
  org.drools.builder.help.KnowledgeBuilderHelper

public class KnowledgeBuilderHelper
extends Object

Provides helper methods for working with JAXB and a Knowledgebase, it takes care of the Classpath issues when mapping against internal type declarations.

This api is experimental and thus the classes and the interfaces returned are subject to change.

Constructor Summary

KnowledgeBuilderHelper()

Method Summary

static String[]	addXsdModel(Resource resource, KnowledgeBuilder kbuilder, com.sun.tools.xjc.Options xjcOpts, String systemId) Generates pojos for a given XSD using XJC and adds them to the specified KnowlegeBase.
static DroolsJaxbHelperProvider	getDroolsJaxbHelperProvider()
static javax.xml.bind.JAXBContext	newJAXBContext(String[] classNames, KnowledgeBase kbase) Creates a new JAXBContext, from which the Marshaller and Unmarshaller can be created, which are used by the Transformer pipeline stage.
static javax.xml.bind.JAXBContext	newJAXBContext(String[] classNames, Map<String,?> properties, KnowledgeBase kbase)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

KnowledgeBuilderHelper

public KnowledgeBuilderHelper()

Method Detail

addXsdModel

public static String[] addXsdModel(Resource resource,
                                   KnowledgeBuilder kbuilder,
                                   com.sun.tools.xjc.Options xjcOpts,
                                   String systemId)
                            throws IOException

Generates pojos for a given XSD using XJC and adds them to the specified KnowlegeBase.

 Options xjcOpts = new Options();
 xjcOpts.setSchemaLanguage( Language.XMLSCHEMA );
 KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();

 String[] classNames = KnowledgeBuilderHelper.addXsdModel( ResourceFactory.newClassPathResource( "order.xsd",
                                                                                                 getClass() ),
                                                           kbuilder,
                                                           xjcOpts,
                                                           "xsd" );
 

Parameters:

resource - The resource to the XSD model

kbuilder - the KnowledgeBuilder where the generated .class files will be placed

xjcOpts - XJC Options

systemId - XJC systemId

Returns:

Returns an array of class names that where generated by the XSD.

Throws:

IOException

newJAXBContext

public static javax.xml.bind.JAXBContext newJAXBContext(String[] classNames,
                                                        KnowledgeBase kbase)
                                                 throws javax.xml.bind.JAXBException

Creates a new JAXBContext, from which the Marshaller and Unmarshaller can be created, which are used by the Transformer pipeline stage.

Parameters:

classNames - An array of class names that can be resolved by this JAXBContext

properties - JAXB properties

kbase - The KnowledgeBase

Returns:

The JAXB Context

Throws:

javax.xml.bind.JAXBException

newJAXBContext

public static javax.xml.bind.JAXBContext newJAXBContext(String[] classNames,
                                                        Map<String,?> properties,
                                                        KnowledgeBase kbase)
                                                 throws javax.xml.bind.JAXBException

Throws:

javax.xml.bind.JAXBException

getDroolsJaxbHelperProvider

public static DroolsJaxbHelperProvider getDroolsJaxbHelperProvider()