IRowListener (Hop Engine 2.5.0 API)

All Known Implementing Classes:

RowAdapter
```
public interface IRowListener
```
IRowListener 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's
```
 addRowListener
 
```
method. When the row event occurs, that object's appropriate method is invoked.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`errorRowWrittenEvent(IRowMeta rowMeta, Object[] row)`	This method is called when the error handling of a row is writing a row to the error stream.
`void`	`rowReadEvent(IRowMeta rowMeta, Object[] row)`	This method is called when a row is read from another transform
`void`	`rowWrittenEvent(IRowMeta rowMeta, Object[] row)`	This method is called when a row is written to another transform (even if there is no next transform)

- Method Detail
  - rowReadEvent
```
void rowReadEvent(IRowMeta rowMeta,
                  Object[] row)
           throws HopTransformException
```
    This method is called when a row is read from another transform
    
    Parameters:
    
    rowMeta - the metadata of the row
    
    row - the data of the row
    
    Throws:
    
    HopTransformException - an exception that can be thrown to hard stop the transform
  - rowWrittenEvent
```
void rowWrittenEvent(IRowMeta rowMeta,
                     Object[] row)
              throws HopTransformException
```
    This method is called when a row is written to another transform (even if there is no next transform)
    
    Parameters:
    
    rowMeta - the metadata of the row
    
    row - the data of the row
    
    Throws:
    
    HopTransformException - an exception that can be thrown to hard stop the transform
  - errorRowWrittenEvent
```
void errorRowWrittenEvent(IRowMeta rowMeta,
                          Object[] row)
                   throws HopTransformException
```
    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 row
    
    row - the data of the row
    
    Throws:
    
    HopTransformException - an exception that can be thrown to hard stop the transform