TransDataLineage (PDI Engine 10.0.0.1-249 API)

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 Summary

Constructors
Constructor Description

TransDataLineage(TransMeta transMeta)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`calculateLineage()`	Using the transformation, we will calculate the data lineage for each field in each step.
`TransMeta`	`getTransMeta()`
`List<ValueLineage>`	`getValueLineages()`
`void`	`setTransMeta(TransMeta transMeta)`
`void`	`setValueLineages(List<ValueLineage> valueLineages)`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - TransDataLineage
```
public TransDataLineage(TransMeta transMeta)
```
- Method Detail
  - 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.