Package org.pentaho.di.trans.step
Interface RowListener
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- All Known Implementing Classes:
RowAdapter
,RowOutputDataMapper
public interface RowListener
RowListener is a listener interface for receiving row events. A class that is interested in processing a row event implements this interface, and the object created with that class is registered with a component using the component'saddRowListener
method. When the row event occurs, that object's appropriate method is invoked.- See Also:
RowEvent
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Method Summary
All Methods Instance Methods Abstract Methods Modifier and Type Method Description void
errorRowWrittenEvent(org.pentaho.di.core.row.RowMetaInterface rowMeta, Object[] row)
This method is called when the error handling of a row is writing a row to the error stream.void
rowReadEvent(org.pentaho.di.core.row.RowMetaInterface rowMeta, Object[] row)
This method is called when a row is read from another stepvoid
rowWrittenEvent(org.pentaho.di.core.row.RowMetaInterface rowMeta, Object[] row)
This method is called when a row is written to another step (even if there is no next step)
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Method Detail
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rowReadEvent
void rowReadEvent(org.pentaho.di.core.row.RowMetaInterface rowMeta, Object[] row) throws org.pentaho.di.core.exception.KettleStepException
This method is called when a row is read from another step- Parameters:
rowMeta
- the metadata of the rowrow
- the data of the row- Throws:
org.pentaho.di.core.exception.KettleStepException
- an exception that can be thrown to hard stop the step
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rowWrittenEvent
void rowWrittenEvent(org.pentaho.di.core.row.RowMetaInterface rowMeta, Object[] row) throws org.pentaho.di.core.exception.KettleStepException
This method is called when a row is written to another step (even if there is no next step)- Parameters:
rowMeta
- the metadata of the rowrow
- the data of the row- Throws:
org.pentaho.di.core.exception.KettleStepException
- an exception that can be thrown to hard stop the step
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errorRowWrittenEvent
void errorRowWrittenEvent(org.pentaho.di.core.row.RowMetaInterface rowMeta, Object[] row) throws org.pentaho.di.core.exception.KettleStepException
This method is called when the error handling of a row is writing a row to the error stream.- Parameters:
rowMeta
- the metadata of the rowrow
- the data of the row- Throws:
org.pentaho.di.core.exception.KettleStepException
- an exception that can be thrown to hard stop the step
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