I understood all that. One question, though.. in my current
block.xml, I have a reference to the avalon implementation
artifact. Where do I make that artifact definition? That is,
Merlin will attempt to locate that artifact.. I need to give
it some file in order to do so?

Justin



---- Original message ----
>Date: Thu, 29 Apr 2004 19:20:01 +0200
>From: Stephen McConnell <[EMAIL PROTECTED]>  
>Subject: Re: running hello component  
>To: Avalon framework users <[EMAIL PROTECTED]>
>
>Justin Permar wrote:
>
>> Thanks for the great help so far everyone.
>> 
>> So far I've managed to build the component I made and generate
>> a  .xinfo file using the ant meta task.
>> 
>> My next task is to actually run the hello block. I've made a
>> block.xml file just like the example in the tutorial. What's
>> the next step?
>
>Two options:
>
>   (a) a package block
>   (b) a standalone block
>
>A packaged block (a jar file containing a block.xml file) is
basically a 
>convenience approach.  The alternative (and IMO cleaner
approach) is to 
>create a standalone block definition.  The standalone block
is just a 
>XML file that contains the <container> definition and the
<classloader> 
>includes a reference to the artifact and its dependencies.
>
>Here is an example of running merlin with a standalone block:
>
>   $ merlin -execute block:merlin/tutorial/hello
>
>What this is doing is the following:
>
>   1. locate a file named merlin/tutorial/blocks/hello.block
>   2. create a container model based on the block definition
>   3. add the model to the root container
>   3. deploy the container
>
>> It seems that I should make a .jar that includes the block.xml
>> and my HelloComponent .class file. Then I need to satisfy the
>> block dependencies:
>> 
>> <repository>
>>   <resource id="avalon-framework:avalon-framework-impl"
>> version="4.1.5"/>
>> </repository>
>
>Including a block.xml is not necessary - its just convenient
if you want 
>to reference a jar file instead of a standalone block
definition.  Also 
>- just for reference - embedded block xmls are not used in
jar files 
>established in a classloader (they only come into play if your 
>referencing a jar via the command line or as a <include>
statement 
>inside a <container>.
>
>> I think what I need is another file that lists resources, so
>> that merlin can find them? Where can I find a description of
>> that file, and how can I generate it? This link seems to be
>> what I'm looking for (ant version of course ;):
>> 
>> http://avalon.apache.org/util/plugin/index.html
>> 
>> I can't seem to find the avalon:artifact goal. That page
>> refers to an "avalon plugin", which seems to be different from
>> both the avalon meta plugin and the merlin plugins, both of
>> which are distributed with the release...
>> 
>> Any more pointers please?
>
>Generally speaking you should not need to deal with the util
plugin - it 
>basically build meta info about classloaders - which is used for 
>constructing plugins.  Instead you just need to declare the
dependent 
>jar files in your blocks <classloader> and that's about it.
>
>Stephen.
>
>> Justin
>> 
>>
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>
>
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