DefaultCategoryDataSource 7.3 Constructors

[Randy Kemp]

When I tried my application in JFreeChart 7.3. Please look at these two statements:
1. return new DefaultCategoryDataset(data);
2. return new DefaultCategoryDataset(seriesNames, categories, data);
seriesNames is an arraylist, categories is an arraylist, and data is Number[][]
Before 7.3, I could compile and run a program with statement 2. Now I get this result:
FreeChartServletPcs3.java:540: cannot resolve symbol
symbol : constructor DefaultCategoryDataset (java.util.ArrayList,java.util.Arr
ayList,java.lang.Number[][])
location: class com.jrefinery.data.DefaultCategoryDataset
return new DefaultCategoryDataset(seriesNames, categories, data);
^
1 error
If I use option 2 instead, I can get a clean compile. Has the constructor changed? If so, it is not reflected in the new documentation, which I have looked at.

David. What are the current constructors for DefaultCategoryDataset?
Since they are in jcommon.jar, and are class files, I can't view the source.

[David Gilbert]

Hi Randy,

All the source code for the classes in jcommon.jar can be downloaded from:

http://www.jrefinery.com/jcommon

There's a note about this in the README file in the JFreeChart download.

I probably did change the constructor API and probably didn't document it. I apologise for the inconvenience, but intend to stick with my policy that the API is subject to change at any time until version 1.0.0 is released.

Regards,

DG.

[Randy Kemp]

When I go to that site, and try to download, I get a server 500 error, on either the zip or the tar file. But I can download other things, like Jfreechart. Is this a temporary problem on the server or permanent? If it were me, then I couldn't re-download jfreechart.

[David Gilbert]

I think the FTP server is down, I cannot access any of the download files. I can only apologise, and accelerate the move across to the new web hosting company I have chosen.

In the meantime, I've just uploaded the JCommon files to the JFreeChart project page on SourceForge:

http://sourceforge.net/projects/jfreechart

You should be able to access them from there.

Regards,

DG.