drools源码分析,rete源码分析,rete算法

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1、源码分析报告95源码分析报告11.前言32.规则包格式33.规则编辑83.1AbstractRuleBase83.2ReteooRuleBase103.3ReteooBuilder103.4ReteooRuleBuilder113.5Rule133.6LogicTransformer（有待具体详细分析）133.7ReteooComponentBuilder(部分继承关系)153.8ObjectTypeNode233.9ObjectSinkPropagator263.10BuildUtils313.11NetWorkNode(部分继承关系)333.12Sink(部分继承关系)403.1

2、3Rete413.14FieldIndex414.运行时执行424.1ReteooRuleBase424.2AbstractRuleBase434.3ReteooStatefulSession444.4ReteooWorkingMemory444.5AbstractWorkingMemory//1484row464.6ReteooFactHandleFactory524.7AbstractFactHandleFactory534.8PropagationContext534.9Rete//678row544.10ObjectTypeNode604.11ObjectSinkPropag

3、ator接口614.12AlphaNode//370row664.13LeftInputAdapterNode674.14TupleSinkPropagator684.15JoinNode704.16RuleTerminalNode724.17BetaNode774.18BetaMemory774.19TupleMemory784.20ClassFieldExtractor784.21ReteTuple784.22BetaConstraints804.23VariableConstraint(Beta)834.24VariableRestriction83954.25Abstract

4、HashTable874.26PrimitiveLongMap874.27PrimitiveLongStack884.28TruthMaintenanceSystem884.29DefaultFactHandle884.30DefaultAgenda894.31AgendaItem904.32BinaryHeapQueueAgendaGroup914.33DefaultExecutorService924.34PackageCompilationData924.35PatternBuilder//0.1与初始事实有关924.36ObjectTypeNode//0.1与初始事实有关93

5、4.37DefaultKnowledgeHelper934.38ClassObjectType944.39ValueType944.40AlphaNodeFieldConstraint955.总结951.前言RETE算法一般可以分为两个部分：规则编辑和运行时执行。规则编辑描述规则库中的规则如何生成一个有效的具有分辨力的网络即RETE网络；运行时执行描述工作区中加入事实后如何在RETE网络中传递到网络的根节点。本源码分析报告仅仅分析上述的两个部分，对规则包Package的构建不予分析，只是对规则包格式加以说明。2.规则包格式应用场景以DEMO程序中修改的两条规则为例说明JAVA规则包的

6、格式。（应用场景将在后续版本中修改）规则例子1：whenFeeList(userType=="01")orFeeList(userType=="04",callType=="32")andFeeList(userType=="03",callType=="32")thenSystem.out.println("启动测试规则");规则例子2：when($feeList:FeeList(callStartTime<22,callStartTime>6)andFeeList(callEndTime>22))$basicfeePlan:BasicfeePlan()$longfeePlan:L

7、ongfeePlan();95thenSystem.out.print("获得从‘忙’时跨越到‘闲’时的通话时长:");System.out.print("忙时时长——"+$basicfeePlan.getBusyTime()+"s"+"；");System.out.println("闲时时长——"+$basicfeePlan.getIdleTime()+"s");经过编译后，产生的Package对象结构如下：其中rules为存放规则的HashMap，其中