/* * Copyright (c) 2002-2003 by OpenSymphony * All rights reserved. */package com.opensymphony.workflow.ejb;import com.opensymphony.workflow.WorkflowContext;import javax.ejb.SessionContext;/** * EJB specific workflow context. * The default implementation is to get the caller principal from the * container's SessionContext. If different behaviour is desired, this * class can be subclassed with whatever custom logic in place to look * up the caller. This can be done by specifying a <code>workflowContext</code> * property in the ejb persistence store's properties in osworkflow.xml. * The value of this properly should be the classname of the WorkflowContext * to use. * * @author Hani Suleiman * @version $Revision: 1.6 $ */public class EJBWorkflowContext implements WorkflowContext {    //~ Instance fields ////////////////////////////////////////////////////////    private SessionContext sessionContext;    //~ Methods ////////////////////////////////////////////////////////////////    public String getCaller() {        return sessionContext.getCallerPrincipal().getName();    }    public void setRollbackOnly() {        sessionContext.setRollbackOnly();    }    public void setSessionContext(SessionContext context) {        this.sessionContext = context;    }    public SessionContext getSessionContext() {        return sessionContext;    }}