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Posted to jetspeed-dev@portals.apache.org by David Sean Taylor <da...@bluesunrise.com> on 2002/05/09 21:46:29 UTC
context
Raphael,
Why is there more than one context?
In a turbine action, if I do
Context context = TurbineVelocity.getContext(data);
context.put("thing", thing);
And then in a velocity page, I try
$thing
It doesn't find it.
Thanks,
David
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RE: context
Posted by David Sean Taylor <da...@bluesunrise.com>.
> Isn't the controller going to drop whatever you've placed in
> the context
> after the action is run?
>
> I haven't looked at the code for TurbineVelocity but it looks
> like the
> VelocityPortletController uses the getContext() method which
> is getting a
> new (blank) context object.
>
>
> public class VelocityPortletController extends
> AbstractPortletController {
> public ConcreteElement getContent( RunData rundata )
> {
> // create a blank context and with all the global application
> // Pull Tools inside
> Context context = TurbineVelocity.getContext();
>
> context.put( "data", rundata );
> context.put( "controller", this );
> ....
>
Yes, that's 'how', but not 'why'.
I was under the impression that there should only be one context, the
'Velocity Context'.
It confused me to find out there are more than one. Just wanted to know
why it was implemented this way.
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Re: context
Posted by "David G. Powers" <je...@pssp.com>.
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On Thursday 09 May 2002 12:46 pm, David Sean Taylor wrote:
> Raphael,
>
> Why is there more than one context?
>
> In a turbine action, if I do
>
> Context context = TurbineVelocity.getContext(data);
> context.put("thing", thing);
>
> And then in a velocity page, I try
>
> $thing
>
> It doesn't find it.
>
> Thanks,
>
> David
Isn't the controller going to drop whatever you've placed in the context
after the action is run?
I haven't looked at the code for TurbineVelocity but it looks like the
VelocityPortletController uses the getContext() method which is getting a
new (blank) context object.
public class VelocityPortletController extends AbstractPortletController
{
public ConcreteElement getContent( RunData rundata )
{
// create a blank context and with all the global application
// Pull Tools inside
Context context = TurbineVelocity.getContext();
context.put( "data", rundata );
context.put( "controller", this );
....
There is an empty buildContext method in VelocityPortletController that you
might use. Place the context objects in a session var (or use setTemp) and
then write a custom buildContext method to pull the object into the context.
Then again - I may be wayyyyyy off base!
DP
- --
David G. Powers
PowerSource
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Re: context
Posted by ra...@networks.groupvu.com.
David Sean Taylor wrote:
>Raphael,
>
>Why is there more than one context?
>
>In a turbine action, if I do
>
> Context context = TurbineVelocity.getContext(data);
> context.put("thing", thing);
>
>And then in a velocity page, I try
>
> $thing
>
>It doesn't find it.
>
>
I don't think it's a good idea to use the global app context for the
protlet as they may otherwise
screw jetspeed application context by mistake (think for example that
you want to display a dynamic
object from the context in the bottom navigation...).
So VelocityPortlet creates an independant context for each instance.
--
Raphaël Luta - raphael.luta@networks.groupvu.com
Professional Services Manager
Vivendi Universal Networks - Paris
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