RE: [Jython-users] Accessing Java methods from Jython class

[Updike, C. <Cla...@jh...>]

Should line 25 perhaps be:

 flow.embedImage(con.getImage(), size) #Line 25  <-- note the parans on
getImage()

-Clark

-----Original Message-----
From: On Behalf Of Katherine Wong
Sent: Monday, September 27, 2004 11:09 AM
To: jyt...@li...
Subject: [Jython-users] Accessing Java methods from Jython class


Hello Jython-users,

I'm new to Jython and is encountering the following problem...Hoping to get
some insight.

In my test.py I have the following method:

def addContent(self):
 con = Content() 
 flow = JCFlow(self.document)
 flow.print(con.getParagraph()) #Line 23
 flow.newLine()
 flow.embedImage(con.getImage, size) #Line 25

In my Content.java, I have setup the following methods:

public String getParagraph() {
 String para = "Some paragraph....";
 return para;
}
public Image getImage() {
     String imageFile = "logo.gif";
     URL imageUrl = this.getClass().getResource(imageFile);
     if (imageUrl == null) {
         throw new IllegalStateException("File not found " + imageFile);
     }
 Image logo = new ImageIcon(imageUrl).getImage();
 return logo;
}
 
When I ran the test.py, I get the following error:
----------------
Traceback (innermost last):
  File "GenerateReport.py", line 54, in ?
  File "GenerateReport.py", line 15, in __init__
  File "GenerateReport.py", line 23, in addContent
TypeError: print(): 1st arg can't be coerced to
com.klg.jclass.sreport.TextMacro, String or
com.klg.jclass.sreport.JCPageTable
----------------
From the error I knew this has something to do with overloading method b/c
flow.print() has the following variant:
flow.print(String)
flow.print(com.foo.TextMacro)
flow.proint(com.foo.Table)
So I changed Line 23 to: flow.print(String(con.getParagraph()))
Now, I get the following error:
----------------
Traceback (innermost last):
  File "GenerateReport.py", line 54, in ?
  File "GenerateReport.py", line 15, in __init__
  File "GenerateReport.py", line 23, in addContent
TypeError: java.lang.String(): 1st arg can't be coerced to char[],
java.lang.StringBuffer, byte[] or String
----------------
I'm not sure how to resolve this.  I have the same problem with Line 25:
----------------
Traceback (innermost last):
  File "GenerateReport.py", line 54, in ?
  File "GenerateReport.py", line 15, in __init__
  File "GenerateReport.py", line 25, in addContent
TypeError: embedImage(): 1st arg can't be coerced to java.awt.Image
----------------
If I change Line 25 to: 
----------------
Traceback (innermost last): flow.embedImage(java.awt.Image(con.getImage),
size)
  File "GenerateReport.py", line 54, in ?
  File "GenerateReport.py", line 15, in __init__
  File "GenerateReport.py", line 25, in addContent
TypeError: can't instantiate abstract class (java.awt.Image)
----------------
Please Help!

Thanks,
Kat