BOARSOFT.COM
mac-flow - “make money” 示例
此示例演示了以下功能：
- 如何实现循环（while循环）
- 如何使用fork/join实现动态多线程并行处理——通过参数确定并行多少线程来“赚钱”
- try..catch..finally..yrt的用法，注：yrt是try的闭合符，必不可少。
- 如何开启并提交事务，注意：事务节点不需要配套的画try..finally，它使用内置try..finally来确保执行事务的提交或回滚。
流程图如下：
生成的XML如下：
<![CDATA[
<bean id="makeMoneyService" parent="simpleFlowService">
<property name="flowId" value="makeMoney"/>
</bean>
<bean id="makeMoney" parent="simpleFlow" >
<property name="flowId" value="makeMoney" />
<property name="mutex" value="false" />
<property name="entry" value="fork" />
</bean>
<bean id="makeMoney-make" parent="processNode">
<property name="handler">
<bean class="com.boarsoft.flow.demo.make.MakeMoneyHandlerImpl">
</bean>
</property>
<property name="next" value="commitTx" />
</bean>
<bean id="makeMoney-fork" parent="forkNode">
<property name="join" value="join" />
<property name="handler">
<bean class="com.boarsoft.flow.demo.make.MakeMoneyForkHandlerImpl">
</bean>
</property>
<property name="branches">
<set>
<value>try</value>
</set>
</property>
</bean>
<bean id="makeMoney-join" parent="joinNode">
<property name="handler">
<bean class="com.boarsoft.flow.demo.make.MakeMoneyJoinHandlerImpl">
</bean>
</property>
<property name="next" value="check" />
</bean>
<bean id="makeMoney-check" parent="judgeNode">
<property name="expression" value="money >= 10000" />
<!-- 当 money>=10000 时退出循环 -->
<property name="yes" value="end" />
<!-- 当 money<10000 时回到前面的fork节点，继续执行 -->
<property name="no" value="fork" />
</bean>
<bean id="makeMoney-try" parent="tryNode">
<property name="next" value="beginTx" />
<property name="catch" value="catch" />
<property name="yrt" value="yrt" />
</bean>
<bean id="makeMoney-catch" parent="catchNode">
<property name="next" value="fail" />
</bean>
<bean id="makeMoney-yrt" parent="yrtNode">
<property name="next" value="join" />
</bean>
<bean id="makeMoney-fail" parent="processNode">
<property name="handler">
<bean class="com.boarsoft.flow.demo.make.MakeMoneyFailHandlerImpl">
</bean>
</property>
<property name="next" value="yrt" />
</bean>
<bean id="makeMoney-beginTx" parent="beginTxNode">
<property name="handler">
<bean class="com.boarsoft.flow.demo.make.FakeTxHandlerImpl">
</bean>
</property>
<property name="commitTx" value="commitTx" />
<property name="next" value="make" />
</bean>
<bean id="makeMoney-commitTx" parent="commitTxNode">
<property name="next" value="catch" />
</bean>
]]>