Re: Any BeanShell example for 8.0.1?

[Steven Rubin]

At 04:39 PM 1/19/2005, you wrote:
> Since 8.0.0, I have not been
> able to find any BeanShell script sample. Is there any script we can see
> for Java version?

When the C version of Electric was in use, it had a Java interpreter with
a limited interface that could be fully treated in a single chapter of
the manual.

Now the Java version of Electric has a Java interpreter (the Bean Shell)
that offers users the complete power of Java.  Any class in Electric
which offers public methods is available to your code.  This is good
news: you can do more.

But, really, this is bad news: it is harder to learn.  Now you have
to study the entire Electric API.  The Electric source code has
Javadoc comments in it which create a reasonable online manual. 
However, that manual is not actually included with the download, so you
must use the Javadoc command to extract it from the source code.

In any case, examples are often helpful, so here is an example.

This code makes a list of the nodes in the current cell:
--------------------------------------------------------------------------
import
com.sun.electric.database.hierarchy.Library;
import com.sun.electric.database.hierarchy.Cell;
import com.sun.electric.database.topology.NodeInst;
import com.sun.electric.tool.user.ui.WindowFrame;

// get the cell in the current window
Cell cell = WindowFrame.needCurCell();
if (cell == null) return;

// examine the cell
System.out.println("Cell " + cell.describe() + " has
" + cell.getNumNodes() + " nodes:");
for(Iterator it = cell.getNodes(); it.hasNext(); )
{
  NodeInst ni = (NodeInst)it.next();
  System.out.println("   Node " + ni.describe()
+ " is connected to " + ni.getNumConnections() + "
arcs");
}
--------------------------------------------------------------------------

   -Steve