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Nodes

Basic IO

  • File Reader - for flat file and csv
  • Flat File Document Parser -
  • list files

Developing a new Node

1. You need to download the Knime Eclipse developer edition http://www.knime.org/downloads/overview?sid=238456 2. Create a new Project from Knime → New Node wizard 3. Select the type of node

  • source
  • Sink
  • Learner
  • Predictor
  • Manipulator
  • Visualizer
  • Meta
  • LoopStart
  • LoopEnd
  • ScopeStart
  • ScopeEnd
  • QuickForm
  • Other
  • Subnode
  • VirtualIn
  • VirtualOut

The project creates the necessary sample java files including:

  • The NodeFactory, the entry point for the platform
  • A bundles all necessary node classes:
    • NodeModel
    • NodeDialogPane (optional)
    • NodeView (optional).

* And NodeFactory.xml description is generated, which contains node properties such as a node description, node name, node type, icon, port and view descriptions, an explanation of all dialog options. These properties are shown inside the Node

Node Dialog

Running a new Knime Node

  1. open the Run menu and click Open Run Dialog…
  2. Within this frame a new runtime configuration can be set up by right-clicking the Eclipse Application tag. Specify a new workspace directory and select
  • org.knime.product.KNIME_APPLICATION as Run an application option.
  • Arguments tab we recommend using the following VM arguments: -ea -Xmx1G -XX:MaxPermSize=512M.
  • click Apply to apply the changes and
  • click Run to launch KNIME

 
knime.txt · Last modified: 2014/08/27 09:51 by root
 
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