0 Replies Latest reply on Dec 7, 2011 9:39 PM by dearest555

Cannot instantiate abstract class or interface

dearest555 Dec 7, 2011 9:39 PM

Hi,

I 'm newbie in JBPM. I try to do assign handler but I got an error message.

Caused by: org.hibernate.InstantiationException

Cannot instantiate abstract class or interface: com.mmm.workflow.bom.Document

-file : process.jpdl.xml

package com.dear.workflow.task.assigment;

import org.apache.commons.lang.StringUtils;
import org.jbpm.api.model.OpenExecution;
import org.jbpm.api.task.Assignable;

import com.dear.common.bom.Employee;
import com.dear.workflow.bom.Document;
import com.trg.search.Search;

public class AssignByOrganization extends AssignmentBase {

public static String ORGANIZATION_TYPE_SUPERVISOR = "supervisor";
public static String ORGANIZATION_TYPE_DIVMGR = "divmgr";
public static String ORGANIZATION_TYPE_DEPTMGR = "deptmgr";

String type;
/* (non-Javadoc)
* @see org.jbpm.api.task.AssignmentHandler#assign(org.jbpm.api.task.Assignable, org.jbpm.api.model.OpenExecution)
*/
public void assign(Assignable assignable, OpenExecution execution)
   throws Exception {
String docRefId = (String)execution.getVariable("docRefId");
Search search = new Search(Document.class);
search.addFilterEqual("docRefId", docRefId);
Document document = (Document)generalDAO.searchUnique(search);
//Document document = (Document)execution.getVariable("document");
Employee author = generalDAO.find(Employee.class, StringUtils.rightPad(document.getAuthor().getEmployeeId(), 10, " ").toUpperCase() ).getSupervisor();
//generalDAO.refresh(author);
if(author != null)
{
   if(type.equals(ORGANIZATION_TYPE_SUPERVISOR))
    assignable.setAssignee(author.getSupervisor().getEmployeeId());
   if(type.equals(ORGANIZATION_TYPE_DIVMGR))
    assignable.setAssignee(author.getDivisionManager().getEmployeeId());
   if(type.equals(ORGANIZATION_TYPE_DEPTMGR))
    assignable.setAssignee(author.getDepartmentManager().getEmployeeId());
}

}

task g="186,155,123,52" name="Supervisor Review"

<assignment-handler auto-wire="true" class="com.dear.workflow.task.assigment.AssignByOrganization"

<field name="type"

<string value="supervisor"

</field>

</assignment-handler

<!--

-->

<transition g="464,134:-36,-18" name="deny" to="notify deny"

<transition g="5,-16" name="approve" to="Finance Review"

</task