WithOnlyQueriedData (apache-cassandra API)

java.lang.Object
- org.apache.cassandra.db.transform.Transformation<I>
- - org.apache.cassandra.db.rows.WithOnlyQueriedData<I>

```
public class WithOnlyQueriedData<I extends BaseRowIterator<?>>
extends Transformation<I>
```
Function to skip cells (from an iterator) that are not part of those queried by the user according to the provided ColumnFilter. See UnfilteredRowIterators.withOnlyQueriedData(org.apache.cassandra.db.rows.UnfilteredRowIterator, org.apache.cassandra.db.filter.ColumnFilter) for more details.

Constructor Summary

Constructors
Constructor Description

WithOnlyQueriedData(ColumnFilter filter)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`protected RegularAndStaticColumns`	`applyToPartitionColumns(RegularAndStaticColumns columns)`	Applied to the `PartitionColumns` of any rows iterator.
`protected Row`	`applyToRow(Row row)`	Applied to any row we encounter in a rows iterator
`protected Row`	`applyToStatic(Row row)`	Applied to the static row of any rows iterator.

Methods inherited from class org.apache.cassandra.db.transform.Transformation
apply, apply, apply, apply, applyToDeletion, applyToMarker, applyToPartition, applyToPartitionKey, onClose, onPartitionClose

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

- Constructor Detail
  - WithOnlyQueriedData
```
public WithOnlyQueriedData(ColumnFilter filter)
```
- Method Detail
  - applyToPartitionColumns
```
protected RegularAndStaticColumns applyToPartitionColumns(RegularAndStaticColumns columns)
```
    Description copied from class: Transformation
    
    Applied to the PartitionColumns of any rows iterator. NOTE: same remark than for applyToDeletion: it is only applied to the first iterator in a sequence of iterators filled by MoreContents.
    
    Overrides:
    
    applyToPartitionColumns in class Transformation<I extends BaseRowIterator<?>>
  - applyToStatic
```
protected Row applyToStatic(Row row)
```
    Description copied from class: Transformation
    
    Applied to the static row of any rows iterator. NOTE that this is only applied to the first iterator in any sequence of iterators filled by a MoreContents; the static data for such iterators is all expected to be equal
    
    Overrides:
    
    applyToStatic in class Transformation<I extends BaseRowIterator<?>>
  - applyToRow
```
protected Row applyToRow(Row row)
```
    Description copied from class: Transformation
    
    Applied to any row we encounter in a rows iterator
    
    Overrides:
    
    applyToRow in class Transformation<I extends BaseRowIterator<?>>