Hello,

I created a workflow using KNIME GUI. Now, I would like to create an instance of the workflow in an OSGi plugin project using workflowManager. I have some difficulties with loading the project, if the workflow in the project contains database readers or writers.

I set up my encription key supplier with the following code:
final String encryptionKey = "12345678";
KnimeEncryption.setEncryptionKeySupplier(
new EncryptionKeySupplier() {
/** {@inheritDoc} */
public String getEncryptionKey() {
return encryptionKey;
}
});

The error I get is:
Can't locate CorePlugin, not an OSGi framework?
WARN Database Reader java.sql.SQLException: javax.crypto.BadPaddingException: Given final block not properly padded

Any suggestions how to solve the problem?

Cheers,
Miha

I was wondering if there is a implemented function for a status (in %) of my node... writing a learner and predictor node for SOMs and need %-display instead the blue load bar in the node...

with friendly regards
kubrick

Hello,

let me suggest to add release dates to Previous Versions and Download KNIME.
By this, the history timeline and release cycle would be much easier to see.

The current workaround is to search.

Hi,
I have create a new node with the wizard, but it return following error message:
"Log file is located at: C:\Users\tanino\Desktop\eclipse_knime_2.1.2\runtime-New_configuration\.metadata\knime\knime.log
ERROR Stil Execute failed: da01000000103 FILE_NOT_FOUND",given that my node wants to allow the coversion of file formats, and how configuration parameters: the path of the input file, the path of the filter output, the input format and output format. what could be the reason??
thanks

Hi,

I just wanted to clarify the following:
As createJoinedTable is working with BufferedDataTable and not with BufferedDataContainer the table are going to be in memory when performing the join (i.e. exec.createJoinedTable(...)).
Or, is createJoinedTable somehow able to swap to disk?

The reason I am asking is that I want to append more than one column to a given input table and I just feel that using the columnRearranger is very cumbersome... But if you say that this is the method to use because of memory and performance issues I will obey.... ;(

Thanks a lot for any comments and clarifications.

Bernd

Hi, I just started using KNIME and since this is the first time i'm using a mining tool, i really need your help!
I use Wamp server, with php and Apache and i uploaded my databse in phpmyAdmin (ver 3.2.0.1).
In order to connect with my database through knime i use the node Database REader. I tried to import the JDBC MySql Driver but when i tried to load it through that node, i got an error message that the .jar file was not a valid xml file.
Anyway, after several restarts i finally got some new options for the database driver (in the database reader node) and i use this one: com.mysql.jdbc.Driver. Then for my database url the only 2 options that gave me a more encouraging result are these: 1)jdbc:mysql://@localhost:80/database_name and 2)jdbc:mysql://@phpmyadmin:80/database_name.The message that i take after using it is the one below and in the end i cannot connect with my database:
------------------------------------------
WARN Database Reader java.sql.SQLException: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
-----------------------------------------------
If I dont use the "@" i get a TimeoutException error.. Can anyone tell me what i'am doing wrong?
I use knime-2.1.2-win32.win32.x86 with alll the available updates.

Hi: I'm trying Knime and it's awesome. However, I don't understand the
API completely yet. I created a project using the GUI.

Then I launched my Eclipse Ganymede IDE and created a Java Project which can
run the workflow I previously created with the GUI, using the
WorkflowManager class. It's great and it works but in the workflow I
read an ARFF file and the path to the file is contained in the flow.
If I pass my program to another person it won't work unless he put the
data in the same way in his file system.

Is it any possibility to dynamically change the data location that the
workflow knows and use a relative path in my java project, for example
"src\resources\testdata.arff" or similar???

My final goal is use Knime GUI for design some experiments or datamining processes and make
software on top of that. Therefore I need to be able to easily change
the data I will pass to the predictor for classify it.

Thanks in advance

hi all,
i'm wondering if there is'nt any troubles with weka predictor cause when i want to use this node , it always raise ERROR Weka Predictor Execute failed: ("ArrayIndexOutOfBoundsException") exception.
help!!

Hi,

Could you please give me an example how to use the getCell-method?

As a example: I read a file with the FileReader-Node=>JavaSnippet Node: return Cell(1)

Thanks for any help.

schlirgg

Hi,

I have a sink-NodeModel (with an attached NodeView) which is too complex to be made persistent using the load/saveInternals-mechanism. Currently, when saving an executed instance of this node and reloading the workflow, the node is still in the "executed" state, but the view-instantiation to fails.

Thus I would like my node to become reset automatically when a previously saved workflow is being loaded. This reset should affect only my node and not the complete workflow (so no "-reset").

Is there any API or property to be set to cause the state of my node to change to "configured" when the workflow is loaded? Maybe some exception that I could throw in order to indicate that my node could not be restored even if it has been in "executed"-state when the workflow had been saved.

So far the only partial solution which came into my mind was to set a warning-message which indicates the user to reset the node.

Best, Watzlaw