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OSWorkflow的第五个程序


OSWorkflow的第五支程式


第五支程式要用OSWorkflow提供的API做查詢,查詢出已完成工作流的工作流編號。


程式


Query.java


package tw.idv.idealist; 
 

import java.util.*; 
 
import com.opensymphony.workflow.*; 
 
import com.opensymphony.workflow.query.*; 
 
import com.opensymphony.workflow.spi.WorkflowEntry; 
 

/** 
 
* @author steven 
 
*/ 
 
public class Query extends AbstractWorkflow { 
 
public List getCompleted() { 
 
FieldExpression fe = new FieldExpression(FieldExpression.STATE, 
 
FieldExpression.ENTRY, 
 
FieldExpression.EQUALS, 
 
new Integer(WorkflowEntry.COMPLETED)); 
 
List list = null; 
 
try { 
 
list = getPersistence().query(new WorkflowExpressionQuery(fe)); 
 
} catch (StoreException e) { 
 
e.printStackTrace(); 
 
} 
 

return list; 
 
} 
 
} 
 

completed.jsp 
 
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> 
 

<HTML> 
 
<HEAD> 
 
<%@ page language="java" contentType="text/html; charset=BIG5" pageEncoding="BIG5" %> 
 
<%@ page import="tw.idv.idealist.*" %> 
 
<%@ page import="java.util.*" %> 
 

<META http-equiv="Content-Type" content="text/html; charset=BIG5"> 
 
<META http-equiv="Content-Style-Type" content="text/css"> 
 
<LINK href="theme/Master.css" rel="stylesheet" type="text/css"> 
 
<TITLE>completed.jsp</TITLE> 
 
</HEAD> 
 
<BODY> 
 

已完成的工作流編號:<br> 
 
<% 
 
Query query = new Query(); 
 
List completed = query.getCompleted(); 
 
for(int i=0; i<completed.size(); i++) { 
 
Long wfId = (Long) completed.get(i); 
 
out.println("workflow id => " + wfId + "<br>"); 
 
} 
 
%> 
 

</BODY> 
 
</HTML>

  • 大小: 20.6 KB
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