RowChangeDataJoiner (OpenRefine 4.0-SNAPSHOT API)

Type Parameters:

T -

All Superinterfaces:

Serializable

All Known Implementing Classes:

ColumnAdditionOperation.Joiner, PerformWikibaseEditsOperation.NewReconRowJoiner, ReconOperation.Joiner, RowInRecordChangeDataJoiner, TextTransformOperation.Joiner
```
public interface RowChangeDataJoiner<T>
extends Serializable
```
Joins grid data to change data to produce a new grid. This is to be used only for expensive changes whose data must be persisted to disk - other changes should just use RowMapper. If the mapper can return no or multiple rows for each original row, use RowChangeDataFlatJoiner.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`Row`	`call(Row row, IndexedData<T> indexedData)`	Given a row, its id and the pre-computed change data for this row, return the new row after the change.
`boolean`	`preservesRecordStructure()`	Indicates whether this joiner is guaranteed to preserve the record boundaries on the grid it is applied to.

- Method Detail
  - call
```
Row call(Row row,
         IndexedData<T> indexedData)
```
    Given a row, its id and the pre-computed change data for this row, return the new row after the change.
    
    Parameters:
    
    indexedData - may not be null, but the wrapped data inside may.
  - preservesRecordStructure
```
boolean preservesRecordStructure()
```
    Indicates whether this joiner is guaranteed to preserve the record boundaries on the grid it is applied to.