Re: Path Problem?

Posted by Bob Loushin on Jan 19, 2010; 1:11am
URL: http://imagej.273.s1.nabble.com/Path-problem-tp3689668p3689669.html

I'd like to thank everyone who responded.  Mr. Saalfeld seems to have pointed me down the right path, but I haven't had success following it.  In particular, the following works:

Experiment 1:

test_1.java:
//package my_stuff;

import ij.*;
import ij.process.*;
import ij.gui.*;
import java.awt.*;
import ij.plugin.*;

public class test_1 implements PlugIn {

 public void run(String arg) { shared_method(); }

 public void shared_method() { IJ.showMessage("test_1","Hello world!"); }
}


plugins.config:

# Name: Test_Plugin

# Author: Bob
# Version: 1.0
# Date: 1/18/10
# Requires: ImageJ 1.31s

Plugins>Test, "Test 1", test_1("run")

I compile a .class out of the java file using ImageJ>Plugins>Compile and Run..., wrap the whole thing in a .jar using the command

jar cvfM Test.jar test_1.class test_1.java plugins.config

I put this in the plugins folder, fired up ImageJ, and Test 1 was there and ran as expected.

Experiment 2:  Then I uncommented the first line of the .java file and changed the last line of the plugins.config to read

Plugins>Test, "Test 1", my_stuff.test_1("run")

I compile the .class, but of course when I do the Compile and Run..., the run part fails, because now my class is inside a package.  But it still compiled, and the .class should be good, so I proceed.  I use the same jar command as before, restart ImageJ, and try to run it.  Unfortunately, it again fails.  Apparently, there is still a detail I do not understand.

Experiment 3:  The ultimate goal is to be able to write a test_2.java which will look like the following:

test_2.java:
//package my_stuff;

import test_1.*;  //This line may not be necessary, or it might need to be import test_1; my Java knowledge is weak on this point, but I'll experiment.
import ij.*;
import ij.process.*;
import ij.gui.*;
import java.awt.*;
import ij.plugin.*;

public class test_2 implements PlugIn {

 public void run(String arg) {
     test_1 temp;
     temp.shared_method();
   }

}

I can't try this until I can get Experiment 2 to work.

Can anyone tell me where I've gone wrong?

Thanks!

Bob