工作流程學習筆記(二)

<initial-actions>
   <action id="0" name="開始">
      <pre-functions>
     <function type="class">
       <arg name="class.name">com.opensymphony.workflow.util.Caller</arg>
        </function>
        <function type="beanshell">
           <arg name="script">
             propertySet.setString("type", transientVars.get("type"));
           </arg>
        </function>
      </pre-functions>
      <results>
        <unconditional-result old-status="Finished" status="Queued"
step="1" owner="${caller}" />
      </results>
      <post-functions>
            <function type="class">
              <arg name="class.name">
                  tw.idv.idealist.OutputPropertySet
              </arg>
              <arg name="author">Steven Shi</arg>
            </function>
      </post-functions>
    </action>
  </initial-actions>
Property sets:持久性變數會將變數的值存入OS_PROPERTYENTRY表中，在程式中以propertySet來存取
ransient Map：臨時變數，僅僅在workflow中有效，在程式中以transientVars來存取。
外部類：
OutputPropertySet.java

package tw.idv.idealist;

import java.util.Map;

import com.opensymphony.module.propertyset.PropertySet;
import com.opensymphony.workflow.FunctionProvider;
import com.opensymphony.workflow.WorkflowException;

/**
 * @author steven
 */
public class OutputPropertySet implements FunctionProvider {
public void execute(Map transientVars, Map args, PropertySet ps) 
          throws WorkflowException {
if (ps.getString("type").equals("1")) {
System.out.println("事假");
}
else if (ps.getString("type").equals("2")) {
System.out.println("病假");
}
System.out.println("author => " + args.get("author"));
}
}
外部類要實現 FunctionProvider。外部類在程式中如下形勢 被調用
<function type="class">
  <arg name="class.name">
    tw.idv.idealist.OutputPropertySet
  </arg>
  <arg name="author">Steven Shi</arg>
</function>