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S
Stanley1-Visitor
1-Visitor
March 3, 2014
Solved

Call custom class

  • March 3, 2014
  • 1 reply
  • 3450 views

Hi all,

I wrote a workflow expression but it was quite long.

So I used javac to create package and store it in proper dir inside codebase/ext.

But when I'm calling my class via expression in workflow manager I get error class not found. 

Checking Syntax...
e:\Windchill_9.0\Windchill\temp\WfExpression269020934.java:40: package com does not exist
 ext.workflow.myClass(primaryBusinessObject); 
 ^
1 error
Syntax check complete.

Can you help me, please?

Best answer by VasiliyRepecki

What are you expecting to get by this code?

To get class instance you shoud write "new ext.test.TestingClass();",

To call method "ext.test.TestingClass.main();".

1 reply

M
MikeLockwood22-Sapphire I
22-Sapphire I
March 3, 2014

Here's an example of a call to a custom class that we use.

Code In workflow Template Activity, on Start Transition

//Add pBONumber to Assignment names

ext.alcon.workflow.WorkflowHelper.replaceInAssignmentName(self, "\\{pBONumber}", pBONumber);

custom class location

D:\PTC\Windchill_10.1\Windchill\codebase\ext\alcon\workflow\WorkflowHelper.class

Called Method in custom class

/**

* Replace a given string with another given string in the names of the assignments associated with the given pBO.

*/

public static void replaceInAssignmentName(WTObject primaryBusinessObject, String replaceThis, String withThat) {

try {

Enumeration processes = WfEngineHelper.service.getAssociatedProcesses(primaryBusinessObject,null,((WTContained)primaryBusinessObject).getContainerReference());

while(processes.hasMoreElements()) {

WfProcess process = (WfProcess) processes.nextElement();

QueryResult nodes = process.getContainerNodes();

while(nodes.hasMoreElements()){

WTObject wtObj = (WTObject) nodes.nextElement();

LocalizableMessage wtObjDispTypeLM = wtObj.getDisplayType();

String wtObjDispType = wtObjDispTypeLM.getLocalizedMessage(wt.session.SessionHelper.manager.getLocale());

String wtObjName = null;

if(wtObjDispType.contains("Wf Assigned Activity")){

wtObjName = ((WfActivity)wtObj).getName();

String wtObjNewName = wtObjName.replaceFirst(replaceThis, withThat);

((WfActivity)wtObj).setName(wtObjNewName);

PersistenceHelper.manager.save((Persistable) wtObj);

}

}

PersistenceHelper.manager.save((Persistable) process);

}

}

catch(WTException e) {

e.printStackTrace();

LOGGER.error("Error while adding PBONumber to Assignment Name: " + e);

}

}

S
Stanley1-VisitorAuthor
1-Visitor
March 4, 2014

Thanks for your reply.

Did you use standard Javac or Rational Rose?

I wrote simple TestingClass.java

package ext.test;
 

import java.io.File;
import java.io.FileWriter;
 
public class TestingClass {
 public static void main (String[] args) {
 try {
 FileWriter outputStream = new FileWriter("C:\\test\\helloworld.txt");
 for (int i = 0; i < 25; i++) {
 outputStream.write("Hello World!" + "\r\n"); 
 }
 outputStream.close();
 } catch (Exception e) {
 e.printStackTrace();
 } 
 }
}

Placed it inside of <wc.home>\codebase\ext\test

compiled using javac ext\test\TestingClass.java

<wc.home>\codebase\ext\test\TestingClass.class was created

Then I used my class in Workflow Expression

try {
 ext.test.TestingClass();
} catch (Exception e) {
 e.printStackTrace();
}

syntax check returned

Checking Syntax...
e:\Windchill_9.0\Windchill\temp\WfExpression269079314.java:39: package ext does not exist
ext.test.TestingClass();
 ^
1 error
Syntax check complete.

I catched similar exception at runtime

V
VasiliyRepecki1-VisitorAnswer
1-Visitor
March 5, 2014

What are you expecting to get by this code?

To get class instance you shoud write "new ext.test.TestingClass();",

To call method "ext.test.TestingClass.main();".

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