Eclipse Community Forums: M2T (model-to-text transformation) » exchange data between java and jet template

Home » Modeling » M2T (model-to-text transformation) » exchange data between java and jet template

exchange data between java and jet template [message #63238]

Mon, 29 June 2009 08:57

Eclipse User

How can I assign a variable retrieved from a model into script-code and
vice versa, e.g. my model contains the following:
<appendix value1="11" value2="22" value3=""/>
In the JET template I retrieve 'value1' and 'value2' into 'x1' and 'x2'
The following script calculates the maximum:
<%
int a;
int b;
int c = java.lang.Math.max(a, b);
%>
How can I assign 'x1' to 'a', 'x2' to 'b' and (after the script) 'c' to
'x3'

regards,
Aart

Re: exchange data between java and jet template [message #63263 is a reply to message #63238]

Mon, 29 June 2009 09:38

Eclipse User

aart matsinger wrote:
> How can I assign a variable retrieved from a model into script-code and
> vice versa, e.g. my model contains the following:
> <appendix value1="11" value2="22" value3=""/>
> In the JET template I retrieve 'value1' and 'value2' into 'x1' and 'x2'
> The following script calculates the maximum:
> <%
> int a;
> int b;
> int c = java.lang.Math.max(a, b);
> %> How can I assign 'x1' to 'a', 'x2' to 'b' and (after the script) 'c'
> to 'x3'
>
> regards,
> Aart
>

Aart:

I'm am guessing you are doing something like:

<c:setVariable name="x1" select="/appendix/@value1"/>

Even better would be:

<c:setVariable name="x1" select="number(/appendix/@value1)"/>

(so that x1 is a Number rather than an an XPath NodeSet)

Assuming you use the 'number' function in setting the variable,
Your Java code should look like:

<%
int a = ((Number)context.getVariable("x1")).intValue();
int b = ((Number)context.getVariable("x2")).intValue();
int c = Math.max(a, b);
%>

Paul

Re: exchange data between java and jet template [message #63285 is a reply to message #63263]

Mon, 29 June 2009 10:01

Eclipse User

Paul,

Thanks! This works fine.

regards,
Aart

Previous Topic:	[Announce] M2T releases with Galileo!
Next Topic:	Acceleo QVTO Interop

Goto Forum:

-=] Back to Top [=-

Current Time: Tue Nov 04 21:40:08 EST 2025

.:: Contact :: Home ::.

Breadcrumbs

Sign up to our Newsletter