Re: [m2t-dev] Run a template from java error

[Paul Elder <pelder@xxxxxxxxxx>]

Frank:

This mailing list is for discussions
between M2T developers. For questions about using the product, please post
to the M2T newsgroup:

http://www.eclipse.org/newsportal/thread.php?group=eclipse.modeling.m2t

Paul Elder
Development Lead, Model-to-Text languages and tools
IBM Rational software

From:	赵永 <zhao-yong@xxxxxxxxxxx>
To:	m2t-dev <m2t-dev@xxxxxxxxxxx>
Date:	13/08/2009 06:25 AM
Subject:	[m2t-dev] Run a template from java error

---

Hi,
 I am using jet to generate code from a xml model.
 I have created a JET transformation project , then coded my own jet template
and xml model , then new a JET transformation and run it successfully.

Now, in order to abtain more flexibilities, I want to run the jet template
from java. I
have read the JET FAQ "M2T-JET-FAQ/How do I run a JET template from
Java?" , 
url:http://wiki.eclipse.org/M2T-JET-FAQ/How_do_I_run_a_JET_template_from_Java%3F

Based on the discription of this faq,  I invoke the JET API in my
java class.
First, I create a eclipse plugin project(not jet transformation project),
 and config it depends jet plugins
, then code some java class to invoke jet API directly.But I got the following
error:

Exception in thread "main" java.lang.NullPointerException
                
at org.eclipse.jet.taglib.TagLibraryManager.getTagLibrary(TagLibraryManager.java:89)
                
at org.eclipse.jet.internal.runtime.TagFactoryImpl.createRuntimeTag(TagFactoryImpl.java:61)
                
at com.neusoft.unieap.dc.jet.domain.DomainMainTemplate.generate(DomainMainTemplate.java:83)
                
at test.JETTest.transformation4DO(JETTest.java:30)
                
at test.JETTest.main(JETTest.java:19)

I search some information about the error and read a mail ,url:
http://dev.eclipse.org/newslists/news.eclipse.technology.emft/msg01659.html
http://dev.eclipse.org/newslists/news.eclipse.technology.emft/msg01743.html
The response is "Looking at your stack trace, it seems you are trying
to run an EMFT JET 
template directly from a Java program (Transform.main()). EMFT JET doesn't
work that way...."            
    

Now, I confused:
1 Can I run a run jet template from java? Or from a eclipse plugin project?
2 If it's ok, how to resolve the problem?

Thanks a lot.              
  
--------------
Frank
2009-08-13

---------------------------------------------------------------------------------------------------
Confidentiality Notice: The information contained in this e-mail and any
accompanying attachment(s) 
is intended only for the use of the intended recipient and may be confidential
and/or privileged of 
Neusoft Corporation, its subsidiaries and/or its affiliates. If any reader
of this communication is 
not the intended recipient, unauthorized use, forwarding, printing,  storing,
disclosure or copying 
is strictly prohibited, and may be unlawful.If you have received this communication
in error,please 
immediately notify the sender by return e-mail, and delete the original
message and all copies from 
your system. Thank you. 
---------------------------------------------------------------------------------------------------
_______________________________________________
m2t-dev mailing list
m2t-dev@xxxxxxxxxxx
https://dev.eclipse.org/mailman/listinfo/m2t-dev