Package org.pentaho.di.lineage

Class TransDataLineage

java.lang.Object
org.pentaho.di.lineage.TransDataLineage
public class TransDataLineage extends Object
This class will help calculate and contain the data lineage for all values in the transformation.
What we will get is a List of ValueLineage objects for all the values steps in the transformation.
Each of these ValueLineage objects contains a list of all the steps it passed through.
As such, it's a hierarchical view of the transformation.
This view will allow us to see immediately where a certain value is being manipulated.
Author:
matt

  • Constructor Details

    • TransDataLineage

      public TransDataLineage(TransMeta transMeta)

  • Method Details

    • getTransMeta

      public TransMeta getTransMeta()

    • setTransMeta

      public void setTransMeta(TransMeta transMeta)

    • getValueLineages

      public List<ValueLineage> getValueLineages()
      Returns:
      the valueLineages

    • setValueLineages

      public void setValueLineages(List<ValueLineage> valueLineages)
      Parameters:
      valueLineages - the valueLineages to set

    • calculateLineage

      public void calculateLineage() throws org.pentaho.di.core.exception.KettleStepException
      Using the transformation, we will calculate the data lineage for each field in each step.
      Throws:
      org.pentaho.di.core.exception.KettleStepException - In case there is an exception calculating the lineage. This is usually caused by unavailable data sources etc.