Flowable源码注释（五十一）网关解析处理器_flowable 包容网关-优快云博客

本文主要探讨Flowable流程引擎中的网关解析处理器，包括 ExclusiveGatewayParseHandler 的排他网关，InclusiveGatewayParseHandler 的包容网关，ParallelGatewayParseHandler 的并行网关，以及 EventBasedGatewayParseHandler 的基于事件的网关解析。详细解析了每个网关处理器在Flowable-6.7.2版本中的实现和作用。

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Flowable源码地址：https://github.com/flowable/flowable-engine

Flowable-6.7.2 源码注释地址：https://github.com/solojin/flowable-6.7.2-annotated

网关解析处理器，包路径：org.flowable.engine.impl.bpmn.parser.handler

ExclusiveGatewayParseHandler 排他网关

/**
 * 排他网关
 *
 * @author Joram Barrez
 */
public class ExclusiveGatewayParseHandler extends AbstractActivityBpmnParseHandler<ExclusiveGateway> {

    @Override
    public Class<? extends BaseElement> getHandledType() {
        return ExclusiveGateway.class;
    }

    @Override
    protected void executeParse(BpmnParse bpmnParse, ExclusiveGateway gateway) {
        gateway.setBehavior(bpmnParse.getActivityBehaviorFactory().createExclusiveGatewayActivityBehavior(gateway));
    }

}

InclusiveGatewayParseHandler 包容网关

/**
 * 包容网关
 *
 * @author Joram Barrez
 */
public class InclusiveGatewayParseHandler extends AbstractActivityBpmnParseHandler<InclusiveGateway> {

    @Override
    public Class<? extends BaseElement> getHandledType() {
        return InclusiveGateway.class;
    }

    @Override
    protected void executeParse(BpmnParse bpmnParse, InclusiveGateway gateway) {
        gateway.setBehavior(bpmnParse.getActivityBehaviorFactory().createInclusiveGatewayActivityBehavior(gateway));
    }

}

ParallelGatewayParseHandler 并行网关

/**
 * 并行网关
 *
 * @author Joram Barrez
 */
public class ParallelGatewayParseHandler extends AbstractActivityBpmnParseHandler<ParallelGateway> {

    @Override
    public Class<? extends BaseElement> getHandledType() {
        return ParallelGateway.class;
    }

    @Override
    protected void executeParse(BpmnParse bpmnParse, ParallelGateway gateway) {
        gateway.setBehavior(bpmnParse.getActivityBehaviorFactory().createParallelGatewayActivityBehavior(gateway));
    }

}

EventBasedGatewayParseHandler 基于事件的网关解析处理器

/**
 * 基于事件的网关解析处理器
 *
 * @author Joram Barrez
 */
public class EventBasedGatewayParseHandler extends AbstractActivityBpmnParseHandler<EventGateway> {

    @Override
    public Class<? extends BaseElement> getHandledType() {
        return EventGateway.class;
    }

    @Override
    protected void executeParse(BpmnParse bpmnParse, EventGateway gateway) {
        gateway.setBehavior(bpmnParse.getActivityBehaviorFactory().createEventBasedGatewayActivityBehavior(gateway));
    }

}