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Posted to dev@cocoon.apache.org by "David Crossley (JIRA)" <ji...@apache.org> on 2006/03/01 08:55:42 UTC
[jira] Updated: (COCOON-865) [PATCH] New ResourceLoadAction
[ http://issues.apache.org/jira/browse/COCOON-865?page=all ]
David Crossley updated COCOON-865:
----------------------------------
Bugzilla Id: (was: 24389)
Other Info: [Patch available]
Description:
I've created a new ResourceLoadAction (based on the ResourceExistsAction).
This action is very useful if you want to load a pipeline, so that it can set up
some things used in your calling pipeline.
For example, you may need to access DOM information stored in your
session/request object, so might need to call a pipeline ahead of time to read
the data from a database and then use WriteDomTransformer to put the data where
your main pipeline can get at it.
I ran into a situation where I wanted to use a Selector coupled with the
JXPathMetaModule (to read the selector value from a DOM document in the session)
, but needed to do ensure that the data was first loaded into the session.
ResourceLoadAction solved this need.
Basically, it's very much like a <map:call> but with the serialized output being
thrown away, so it can be used to call any arbitrary pipeline anywhere you can
put an action.
Source attached.
....Andrzej
was:
I've created a new ResourceLoadAction (based on the ResourceExistsAction).
This action is very useful if you want to load a pipeline, so that it can set up
some things used in your calling pipeline.
For example, you may need to access DOM information stored in your
session/request object, so might need to call a pipeline ahead of time to read
the data from a database and then use WriteDomTransformer to put the data where
your main pipeline can get at it.
I ran into a situation where I wanted to use a Selector coupled with the
JXPathMetaModule (to read the selector value from a DOM document in the session)
, but needed to do ensure that the data was first loaded into the session.
ResourceLoadAction solved this need.
Basically, it's very much like a <map:call> but with the serialized output being
thrown away, so it can be used to call any arbitrary pipeline anywhere you can
put an action.
Source attached.
....Andrzej
> [PATCH] New ResourceLoadAction
> ------------------------------
>
> Key: COCOON-865
> URL: http://issues.apache.org/jira/browse/COCOON-865
> Project: Cocoon
> Type: Improvement
> Components: - Components: Avalon
> Versions: 2.1.2
> Environment: Operating System: other
> Platform: Other
> Reporter: Andrzej Taramina
> Assignee: Cocoon Developers Team
> Priority: Minor
> Attachments: ResourceLoadAction.java, ResourceLoadAction.java
>
> I've created a new ResourceLoadAction (based on the ResourceExistsAction).
> This action is very useful if you want to load a pipeline, so that it can set up
> some things used in your calling pipeline.
> For example, you may need to access DOM information stored in your
> session/request object, so might need to call a pipeline ahead of time to read
> the data from a database and then use WriteDomTransformer to put the data where
> your main pipeline can get at it.
> I ran into a situation where I wanted to use a Selector coupled with the
> JXPathMetaModule (to read the selector value from a DOM document in the session)
> , but needed to do ensure that the data was first loaded into the session.
> ResourceLoadAction solved this need.
> Basically, it's very much like a <map:call> but with the serialized output being
> thrown away, so it can be used to call any arbitrary pipeline anywhere you can
> put an action.
> Source attached.
> ....Andrzej
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