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BHR · Joined: Nov 25, 2014 Posts: 20

Hi
Dear all
I have been working on custom element
how imports like below can be handled at begin of custom element java file?
items : ExternalChartContext ExternalChartIf ExternalElementContext and etc...

import com.proatech.bioera.external.ExternalChartContext;
import com.proatech.bioera.external.ExternalChartIf;
import com.proatech.bioera.external.ExternalElementContext;
import com.proatech.bioera.external.ExternalInit2If;
import com.proatech.bioera.external.ExternalSinkIf;
import com.proatech.bioera.external.ExternalSourceIf;

jarek · Joined: Oct 22, 2007 Posts: 1073

I think you need to add custom.jar to your classpath. It is located under ext folder and contains those classes you are trying to import. More information here:

http://www.bioera.net/manual.html#_Toc403982654

BHR · Joined: Nov 25, 2014 Posts: 20

Dear jarek
thanks for your reply and answering
I have been seen that page before.
maybe those classes exist in external.jar file but when I add it into my project
the project yet report errors under imports like this
import com.proatech.bioera.external.ExternalElementContext;

jarek · Joined: Oct 22, 2007 Posts: 1073

It is custom.jar, NOT external.jar

BHR · Joined: Nov 25, 2014 Posts: 20

tnx Jarek

BHR · Joined: Nov 25, 2014 Posts: 20

Hi dear jarek
I have been completed programming custom element and make its .jar file
this is the files structure in that .jar file

souce package>default package> palayer_controler (this file implemented the interfaces)
in this file the other java class has constructed and called
SO after copying this .jar fileinto ext folder how I can set path for this class
classpath and path in software custom element ?
any comment can be helpful
thanks in advance

jarek · Joined: Oct 22, 2007 Posts: 1073

You do NOT set a classpath anywhere.

After you copied your jar file into ext folder, all you need to do is enter full name of your class with the package.

For example:

com.yourpackage.YourClass

That is on assumption you put your class YourClass in com.yourpackage package.

BHR · Joined: Nov 25, 2014 Posts: 20

Hi dear jarek
thanks for your replies.
I reflected all your comments to my project but I dont see anything
not working and not error reporting!
how I can send my project class tree snapshot to you?

BHR · Joined: Nov 25, 2014 Posts: 20

Dear Jarek
is it possible to make a tutorial \"how add a .jar file as custom element\" and put it on youtube or this site?

jarek · Joined: Oct 22, 2007 Posts: 1073

Creating a custom element requires some java knowledge.

Jar creation is well explained in many tutorials about java, for example:

http://docs.oracle.com/javase/tutorial/deployment/jar/

If you have not done that before, you should first learn and experiment with a test jar and see how it works outside of BioEra, before you do this for custom element.

Please note, that in order to create a custom element you do not have to create a jar. You can put your classes inside \"impl\" folder like described in the manual. Jar is more convenient for final packaging and redistribution. But for the initial implementation it is not necessary.

I created a demo jar file with the same code which is used in the custom element example. It can be put in the ext folder and should execute the same (impl folder should be made empty to make sure the classes in there do not interfere). You could simply edit its content using a program like winzip (jar file can be edited with tools used for .zip files).

http://proatech.com/design/CustomTest.jar