External Libraries in NWDI

Hello all,
i have already read about several post, with that topic, but still found not an acceptable solution for my problem.
We try using NWDI (SPS14). In my SLD i created a new SC EXTLIBS. I configured a Track and loaded the Dev-Conf into the NWDS.
- I created a External Library DC and added the external jars (log4j, jdom a.o.).
- Made my Public Parts.
- Build and Activation works fine.
Due to External Libraries are not deployable i packed all into a J2EE Library Project. With "Used DC`s" as described https://www.sdn.sap.com/irj/sdn/weblogs?blog=/pub/wlg/2361. [original link is broken] [original link is broken] [original link is broken] [original link is broken] [original link is broken] [original link is broken]
Built and Activation worked well and the Track was transported successfull.
Now i created a new SC in SLD, where i defined the EXTLIB as dependency.
Now i run into trouble. I import the new Development Configuration into NWDS and create a project. I see the defined SC in my local Development configuration, but im not able to sync this SC, nor can access the included DC`s.
If i view this SC in its own Development Configuration i can see the DC`s, also the CBS WebUI tells me the correct nummber of included DC`s.
What do i wrong?
Also Pascal Willemsen mentioned a different method for external libs in /thread/47565 [original link is broken] "The 2nd available option (based on NWDI) is to create an External Library DC and add your jars to that. Create an extra public part for assembly (next to the existing public part for compilation called ExternalLibs). Then, for each portal app DC add the External Library DC as a used DC, create an assembly public part and add an Entity Reference to the assembly public part of the External Library DC. This way the jars will be assembled in the PAR file for each portal app. The nice thing is that you are still maintaining the jar files in one central place, but that you have the option to update and test the portal apps individually.".
But here im not able to share the the External Library to different Development Configurations.
Isn`t that possible at all in NWDI?
Thanks for any help
Best regards
Oliver Walter

Hi Oliver,
just some thoughts that went through my mind, maybe this helps clarifying things a bit...
An External Library DC in NWDI is just like a Java DC (except that you don't have sources or do not want to compile them): It's a simple building block that is used during build. Maybe it has a specific "API" subset (in which case you could publish different Jar files in compilation/assembly public parts) or it hasn't (in which case the jars in compilation/assembly public parts would be identical). Anyway, public parts are relevant for build.
If you want to share a common library then putting the library into an External Library DC is a first step: It allows reuse of the same library within one development configuration. If you now transport the DC (as part of the SC which contains the DC) to another track you can again reuse the same library in that other track.
What Pascal wrote refers to the runtime in contrast to the build. During build you reuse the library using public parts, during runtime you reuse the library by either assembling it into each single deployable archive, or by assembling it into one single (J2EE Server Component) library that is reused at runtime of you application. Both solutions are possible within NWDI and each has its own advantages and disadvantages: Either you mulitply the number of Jar files that are deployed (potentially increasing memory usage/required hard disk space but creating an independently updatable application) or you have to worry about version conflicts at runtime.
Marc

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Hi,
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Hannes,
If you want to use external libraries with DCs then you should follow the NWDI completely.
Check this step, otheways of using external libraries is mentioned <a href="http://help.sap.com/saphelp_nw70/helpdata/en/e3/de813e77d46245e10000000a114084/frameset.htm">here.</a>
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Using external libraries in Web Dynpro DCs

Hi,
I've followed the example in the following blog for using external libraries in my Web Dynpro (WD) DCs:
/people/valery.silaev/blog/2005/09/14/a-bit-of-impractical-scripting-for-web-dynpro and some other messages in the forums. However, it isn't working exactly as described in the blog. I have to twist it a bit to get it work. I were wondering if anyone has any better solution for this problem?
The senario is like this:
- External libraries: a.jar, b.jar
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According to the example in the blog, the following steps are carried out:
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- Step 2: Create, build, deploy J2EE Server / Library DC. (Add reference to the public part of the external library DC as a used DC, with both Build-time and Run-time dependency).
- Step 3: Create WD DC wd1, add used DCs and WD reference libraries as described in the blog. Add WD components as public part. Build and deploy WD DC wd1.
All are ok so far!
- Step 4: Create WD DC wd2, add used DCs and WD reference libraries as before. Try to build and FAIL!
The error occurs here because wd2 cannot access to the classes in the external libraries, similar to the problems described in thread Re: Problems with deploying a JAR file.
I've found a workaround, although quite tedious and cumbersom, but it works. My solution so far is:
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- Round 2: Change the public part "ExternalLibs" property to "assembly", then bulid and deploy all other DCs again.
And now I can reuse the external libraries in my WD DCs as well as WD DCs as library in other WD DCs.
I know it's not an elegant solution. So I were wondering if the experts out there can help me with better solutions?
Many thanks in advance for your help.
Regards,
Van
Edited by: Van Hai Ho on Dec 18, 2007 3:30 PM
Edited by: Van Hai Ho on Dec 18, 2007 3:31 PM

Hi Pascal,
Thank you so much for your help. Your suggestion has helped to make my life a lot easier.
Regards,
Van

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The application probably thinks it's a camera drive. Post a screen shot if the root level of the partition. Look for folders with names like Private.

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Hi,
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weblogic directory structure?
Thanks in advance,
Josh Cimino
Software Developer
Mxi Technologies Ltd.
1430 Blair Place, Suite 800
Ottawa, ON, Canada
K1J 9N2
E: [email protected]
T: 613.747.4698 ext 479
F: 613.747.1909
www.mxi.com
"From the flight line to the bottom line"
[att1.html]

Thanks!
"Dimitri Rakitine" <[email protected]> wrote in message
news:[email protected]..
http://www.onjava.com/pub/a/onjava/2001/06/26/ejb.html
Josh Cimino <[email protected]> wrote:
What if I have a session bean that uses external libraries? There is no
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"Renaud Waldura" <[email protected]> wrote in message
news:3bd348b5$[email protected]..
If your application is packaged correctly it should be in WEB-INF/lib.
If
not, well, let's just say it's probably worth your time to package it
correctly. I know it sounds harsh, but really it's worth it.
--Renaud
"Josh Cimino" <[email protected]> wrote in message
news:3bcaf5f6$[email protected]..
I have some oracle classes that I use for XML generation. Where do I
put
the jar file so that
Weblogic can use them? Do I reference it in the CLASSPATH variable,
or
can
I put the jar file in the
weblogic directory structure?
Thanks in advance,
Josh Cimino
Software Developer
Mxi Technologies Ltd.
1430 Blair Place, Suite 800
Ottawa, ON, Canada
K1J 9N2
E: [email protected]
T: 613.747.4698 ext 479
F: 613.747.1909
www.mxi.com
"From the flight line to the bottom line"
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Use external libraries in web dynpro java

Dear Experts,
I need to add an external library to my project.
Anyway, I do not know how to do it because it gives me many problems.
I tried modifying the classpath and placing it in the lib folder of the project from "Navigator".
Also project properties, add. jar outside, and throws me the following error:
[javac] Compiling 213 source files to D:\WORK\WORKSPACE\7.2.jdi\LocalDevelopment\t\2BF09F48E6D0E2C201262098A0E4D79F\classes
     [javac] ERROR: D:\WORK\WORKSPACE\7.2.jdi\LocalDevelopment\t\2BF09F48E6D0E2C201262098A0E4D79F\gen_wdp\packages\elsys\com\.....\wd\comp\....\MainView.java:34: package com.estaf does not exist
     [javac] ERROR: import com.estaf.jpay;
     [javac] ERROR:
Given these errors, I know my includes without problems and I can instantiate objects from library classes, but these errors I can not deploy.
I read the following link:
/people/raphael.vogel/blog/2008/05/05/how-to-use-external-libraries-in-the-sap-component-model-part-ii
I did everything the tutorial. I created the external library. I can see in my project "DC-Definition -> Used DCs" The public parts assembly and compilation. Now the problem is that it still does not recognize the classes of the libraries you want to use.
A level of code, when I try to instantiate the class does not recognize me. What could be missing? I did a couple of times step by step and gives me the same results.
I use SAP NetWeaver Developer Studio SAP NetWeaver 7.2 SP03 PAT0007 version.
Infinitely appreciate any help. Thank you very much.
Rasim
Edited by: Rasim Donmez on Apr 11, 2011 4:50 PM
Edited by: Rasim Donmez on Apr 11, 2011 4:51 PM

Hi,
please find below path for adding External Jar files.
right click on the webdynpro dc and select the properties .
then clcik on Java Build path->select libraries->select External External Jars.
after that just rebuild your project (not Build).
Regards,
Govindu
Edited by: Govindu Nagotla on Apr 12, 2011 2:28 PM

External Libraries

Is there any documentation on using external libraries with ExtendScript (calling conventions etc)? Also, I've been studying the Stock Photo code a bit and have come across the ExternalObject class - is there any documentation on what this is? Thanks,
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In Windows, the JavaScript files are at
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JavaFX with external libraries

Hi,
I would like to get some help about compiling a JavaFX code with external libraries. I've searched around a lot, but cant find the solution.
Basically I have a JavaFX application, that uses images (they are under the src/ folder as they suggest it) and uses external .jar files, AND these jar files uses other external files (not jars). I want to run the application in desktop mode first, so now I am interested in a solution that makes it work on PC.
I am using Netbeans to develop and run (works everything fine when running from IDE), and using javafxpackager to compile, when I want to run without the IDE.
When I compile with Netbeans, the generated jar and jnlp files can run ONLY from the dist/ folder, if I copy it somewhere else in my winchester, it does not start.
I have find something about "signing jars", so I have to make the jars signed to be able to run them AND to be able to link to the image files that the application uses.
So I have 2 problems/questions with this situation:
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So, my final question is, do I have to make the application (and all other jars) signed, to be able to use external jars and files or not (if I want to run as a desktop application)?
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Cheers
kojak

kojak wrote:
When I compile with Netbeans, the generated jar and jnlp files can run ONLY from the dist/ folder, if I copy it somewhere else in my winchester, it does not start.Unfortunately JNLP requires the base location to be stored in the JNLP file. While that supposedly makes JNLP distributed stuff more secured, it also make them cumbersome and time-consuming to use.
Futhermore, JNLP files generated by NetBeans reference a local web server that only runs when NetBeans is on.
That explains why you just simply cannot move the app to the location you want. I you move them, you have to open them (any text editor) and modify the codebase field (possibly the homepage's href too).
If you want to use only 1 single JNLP, all your JARs references in that JNLP need to be signed with the very same certificate (certificate A).
Unfortunately, this is not good most of the time as some external lib (generally the ones coming from Sun/Oracle) are already signed and you cannot resign them.
The other option is that you can make your main JNLP reference other sub-JNLP that are placed at the same location. Each of these sub-JNLP can reference 1 or more JARs that are signed with a different certificate (1st JNLP used certificate B, 2nd JNLP used certificate C, etc.).
An example adapted from my own main JNLP:
<resources>
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    <extension href="http://dl.javafx.com/1.3/javafx-rt.jnlp" name="JavaFX 1.3.x Runtime"/>
    <extension href="http://<intranet web server>/l2fprod-7.3.jnlp" name="l2fprod-7.3"/>
    <extension href="http://<intranet web server>/JFXtras-0.7.jnlp" name="JFXtras-0.7"/>
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<?xml version="1.0" encoding="UTF-8"?>
<jnlp spec="1.0+" codebase="http://<intranet web server>" href="JFXtras-0.7.jnlp">
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        <vendor>JFXtras</vendor>
        <homepage href="http://code.google.com/p/jfxtras/"/>
        <description>Additionnal controls for JavaFX</description>
        <offline-allowed/>
    </information>
    <security>
       <all-permissions/>
    </security>
    <resources>
       <jar href="lib/JFXtras-Common-0.7rc2.1.jar" main="false" download="eager" size="1309380"/>
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       <extension name="MigLayout-3.7" href="MigLayout-3.7.jnlp"/>
       <extension name="SwingWorker-1.2" href="SwingWorker-1.2.jnlp"/>
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</jnlp>Both JARs files in that particular JNLP can be signed with a different certificate from the one of the main jar, same wit the JARs listed in the 2 sub-JNLPs that are referenced here.
Note: of course, currently, JARs provided by JFXtras are note signed, so I end having to sign them myself anyway, but you get the idea.
Unfortunately NetBeans does not generate such setup so you'll have to find a tool or develop something that does that for you.
Perhaps you should try to post your question in the web start forum Java Web Start & JNLP as well but be prepared to face the all knowledgeable and always helpful but not very user-friendly and definitely not patient with new comers Andrew Thompson.
Note that I've never used external files so I do not know if signing the JAR would fix that particular issue (I do not think so).
Overall I do not like Java Web Start, as said before, it's cumbersome, time-consuming to use, poorly documented, with basically very little to no packaging/helper tool, prone to failure if you make the slightest mistake in the JNLP(s) definition (having a nebulous documentation of its feature does not help) and they've introduced a stream of bugs and errors with each sub-release of Java 6 for the past year and the half that makes programmer's life a hell and JWS a joke compared to other deployment technologies used by competitors.

Deployment: Deploying external libraries from dependent projects

Hi,
i need some help for the following issue.
How do I deploy external libraries from dependent projects? I have one project for the model layer which references TopLink JPA library and an other project for view/controller based on JSF/ADF Faces. The view/controller project has the model project as dependency.
For the view/controller project i have created a WAR deployment profile. On deployment all classes and referenced libraries from view/controller project and all classes from model project were included. But not the referenced library for TopLink JPA.
My second approach was to create a JAR deployment profile for the model project. Again the referenced library for TopLink JPA was not included.
My third approach was to add a library file group to the JAR deployment profile. I tried to add the library to jar's root and to META-INF directory. But the application don't find the library (java.lang.NoClassDefFoundError).
The only way I got this running was adding all referenced libraries from dependent projects to the view/controller project which couldn't be the proper solution.
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PS:
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I see your points.
Unless you have Java EE 5 there is no real standard way of including libraries in EAR files. Including the libs in the WAR files is the only standard supported way for file formats prior to Java EE 5. If you have to consider Tomcat as a possible platform, WAR files are your only option.
You reluctance to include the libs in the WEB-INF/libs structure is understandable but think of injected dependencies in the Entities you're not aware of. These might be needed in the view layer too.
--olaf

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Hello,
we're stuck here.
We're trying for a week now to include external libraries(e.g. Hibernate) into our Web DynPro Project, without success so far.
We read every single forum and blog entry we could find on this topic.
E.g.: /people/valery.silaev/blog/2005/09/14/a-bit-of-impractical-scripting-for-web-dynpro
We're running Netweaver 2004s SP9 Trial Version.
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Any help would be greatly appreciated.
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Edited by: Christian Wieland on Jan 31, 2008 11:22 AM

Hallo Christian,
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project? I don't know this, because it's hard to know if the users have the library (or is it include in the program?)
Thanks in advance :)

You can write windows forms or wpf applications ( and some other types ) using visual studio.
These are desktop applications which you can distribute.
A library is a dll.
Dynamic link library.
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http://msdn.microsoft.com/en-us/library/ms173084(v=vs.90).aspx
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https://visualstudiogallery.msdn.microsoft.com/9abe329c-9bba-44a1-be59-0fbf6151054d
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