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« Return to Thread: JESS: Problem on handling the function 'batch'
Re: JESS: Problem on handling the function 'batch'
by Ernest Friedman-Hill
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Rate this Message:
You're mistaken that setting the property java.class.path changes the
path that the application classloader will use to load classes; that
property is basically read-only, and represents the classpath at JVM
launch.
Anyway, "batch" will indeed find files along the classpath. If your
application's "root directory" is on the classpath, and the CLP file
is in a subdirectory "foo" below that root directory, then either
'batch("/foo/filename.clp")' or 'batch("foo/filename.clp")' would
find it just fine.
On Mar 30, 2008, at 5:53 PM, francisco santiago wrote:
> Hello. This is my first time using Jess. I have a full project in
> which I'm making some changes. This project works via ANT
> (build.xml file fully functional).
>
> The project is working at 100%, but we want to run it without ANT.
> ANT manages the classpath to add some paths to critical locations
> into the app.
>
> I'm having a problem when invoking the function 'batch' in Jess
> when I give it an argument like 'fileName.clp'.
>
> Jess reports an error saying it cannot open the file. The file is
> under a subdirectory into the app base directory. If I put the file
> into this root directory, all works well.
>
> But it's necessary to have those clp's placed in a subfolder.
>
> I've tried using System.getProperties().setProperty
> ("java.class.path",'clp's-directory-path'), but only Java code find
> it useful by using Class.getResourceAsStream() to get acces to the
> resources (as 'fileName.clp' is). But Jess still gives the same
> error, like it doesn't see the changes done to the classpath via
> Java code in execution time.
>
> 'java.class.path' property contains paths to the ./ and ./build
> locations initially. I've noted that placing directly the clp's
> into those places makes Jess find them. Any other location doesn't
> work. Appending to that classpath variable the path to my dir of
> clp's is the solution I've tried, as explained in the paragraph above.
>
> Thank you so much for yout attention and sorry for the length of
> the e-mail. I think that details were necesary.
---------------------------------------------------------
Ernest Friedman-Hill
Informatics & Decision Sciences Phone: (925) 294-2154
Sandia National Labs FAX: (925) 294-2234
PO Box 969, MS 9012 ejfried@...
Livermore, CA 94550 http://www.jessrules.com
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path that the application classloader will use to load classes; that
property is basically read-only, and represents the classpath at JVM
launch.
Anyway, "batch" will indeed find files along the classpath. If your
application's "root directory" is on the classpath, and the CLP file
is in a subdirectory "foo" below that root directory, then either
'batch("/foo/filename.clp")' or 'batch("foo/filename.clp")' would
find it just fine.
On Mar 30, 2008, at 5:53 PM, francisco santiago wrote:
> Hello. This is my first time using Jess. I have a full project in
> which I'm making some changes. This project works via ANT
> (build.xml file fully functional).
>
> The project is working at 100%, but we want to run it without ANT.
> ANT manages the classpath to add some paths to critical locations
> into the app.
>
> I'm having a problem when invoking the function 'batch' in Jess
> when I give it an argument like 'fileName.clp'.
>
> Jess reports an error saying it cannot open the file. The file is
> under a subdirectory into the app base directory. If I put the file
> into this root directory, all works well.
>
> But it's necessary to have those clp's placed in a subfolder.
>
> I've tried using System.getProperties().setProperty
> ("java.class.path",'clp's-directory-path'), but only Java code find
> it useful by using Class.getResourceAsStream() to get acces to the
> resources (as 'fileName.clp' is). But Jess still gives the same
> error, like it doesn't see the changes done to the classpath via
> Java code in execution time.
>
> 'java.class.path' property contains paths to the ./ and ./build
> locations initially. I've noted that placing directly the clp's
> into those places makes Jess find them. Any other location doesn't
> work. Appending to that classpath variable the path to my dir of
> clp's is the solution I've tried, as explained in the paragraph above.
>
> Thank you so much for yout attention and sorry for the length of
> the e-mail. I think that details were necesary.
---------------------------------------------------------
Ernest Friedman-Hill
Informatics & Decision Sciences Phone: (925) 294-2154
Sandia National Labs FAX: (925) 294-2234
PO Box 969, MS 9012 ejfried@...
Livermore, CA 94550 http://www.jessrules.com
--------------------------------------------------------------------
To unsubscribe, send the words 'unsubscribe jess-users you@...'
in the BODY of a message to majordomo@..., NOT to the list
(use your own address!) List problems? Notify owner-jess-users@....
--------------------------------------------------------------------
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