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Drools5学习笔记1-最常用API

2009-11-03 11:21 483 查看
 最常用到的核心接口API：
org.drools.builder.KnowledgeBuilder
org.drools.KnowledgeBase
org.drools.agent.KnowledgeAgent
org.drools.runtime.StatefulKnowledgeSession
org.drools.runtime.StatelessKnowledgeSession 

最常用到的工厂类：
org.drools.builder.KnowledgeBuilderFactory
org.drools.io.ResourceFactory
org.drools.KnowledgeBaseFactory
org.drools.agent.KnowledgeAgentFactory 

典型例子：
KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();
kbuilder.add( ResourceFactory.newUrlResource( url ),
ResourceType.DRL );
if ( kbuilder.hasErrors() ) {
System.err.println( builder.getErrors().toString() );
}
KnowledgeBase kbase = KnowledgeBaseFactory.newKnowledgeBase();
kbase.addKnowledgePackages( builder.getKnowledgePackages() );
StatefulKnowledgeSession ksession = knowledgeBase.newStatefulKnowledgeSession();
ksession.insert( new Fibonacci( 10 ) );
ksession.fireAllRules();
ksession.dispose();
加载普通规则定义文件的写法：
KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();
kbuilder.add( ResourceFactory.newUrlResource( url ),
ResourceType.DRL );
if ( kbuilder.hasErrors() ) {
System.err.println( builder.getErrors().toString() );
}
KnowledgeBase kbase = KnowledgeBaseFactory.newKnowledgeBase();
kbase.addKnowledgePackages( builder.getKnowledgePackages() );
StatefulKnowledgeSession ksession = knowledgeBase.newStatefulKnowledgeSession();
ksession.insert( new Fibonacci( 10 ) );
ksession.fireAllRules();
ksession.dispose();
加载规则流资源文件的写法：
KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();
kbuilder.add( ResourceFactory.newUrlResource( url ),
ResourceType.DRF );
if ( kbuilder.hasErrors() ) {
System.err.println( builder.getErrors().toString() );
}
KnowledgeBase kbase = KnowledgeBaseFactory.newKnowledgeBase();
kbase.addKnowledgePackages( builder.getKnowledgePackages() );
StatefulKnowledgeSession ksession = knowledgeBase.newStatefulKnowledgeSession();
ksession.startProcess( "Buy Order Process" );
ksession.dispose();
加载决策树，excel规则文件的写法：
DecisionTableConfiguration dtconf = KnowledgeBuilderFactory.newDecisionTableConfiguration();
dtconf.setInputType( DecisionTableInputType.XLS );
dtconf.setWorksheetName( "Tables_2" );
kbuilder.add( ResourceFactory.newUrlResource( "file://IntegrationExampleTest.xls" ),
ResourceType.DTABLE,
dtconf );
以xml文件配置规则资源文件，并且加载这个规则集合文件的写法：
<change-set xmlns='http://drools.org/drools-5.0/change-set'
xmlns:xs='http://www.w3.org/2001/XMLSchema-instance'
xs:schemaLocation='http://drools.org/drools-5.0/change-set change-set-5.0.xsd' >
<add>
<resource source='classpath:org/domain/someRules.drl' type='DRL' />
<resource source='classpath:org/domain/aFlow.drf' type='DRF' />
</add>
</change-set>
//加载规则集合文件
KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();
kbuilder.add( ResourceFactory.newUrlResource( url ),
ResourceType.ChangeSet ); 

                                            

                                        

                        
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                         标签： 
                                                api
                                                url
                                                excel
                                                file
                                                xml
                                                

                        

                    


                

            


            

                
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