VisibilityScanDeleteTracker (Apache HBase 1.2.12 API)

java.lang.Object
- org.apache.hadoop.hbase.regionserver.ScanDeleteTracker
- - org.apache.hadoop.hbase.security.visibility.VisibilityScanDeleteTracker

All Implemented Interfaces:

DeleteTracker
```
@InterfaceAudience.Private
public class VisibilityScanDeleteTracker
extends ScanDeleteTracker
```
Similar to ScanDeletTracker but tracks the visibility expression also before deciding if a Cell can be considered deleted

Nested Class Summary
- Nested classes/interfaces inherited from interface org.apache.hadoop.hbase.regionserver.DeleteTracker
  DeleteTracker.DeleteCompare, DeleteTracker.DeleteResult

Field Summary

Fields
Modifier and Type	Field and Description
`private static List<Tag>`	`EMPTY_TAG` This tag is used for the DELETE cell which has no visibility label.
`private static org.apache.commons.logging.Log`	`LOG`
`private List<Pair<List<Tag>,Byte>>`	`visibilityTagsDeleteColumns`
`private List<Triple<List<Tag>,Byte,Long>>`	`visibilityTagsDeleteFamily`
`private List<Triple<List<Tag>,Byte,Long>>`	`visibilityTagsDeleteFamilyVersion`
`private List<Pair<List<Tag>,Byte>>`	`visiblityTagsDeleteColumnVersion`

Fields inherited from class org.apache.hadoop.hbase.regionserver.ScanDeleteTracker
deleteBuffer, deleteLength, deleteOffset, deleteTimestamp, deleteType, familyStamp, familyVersionStamps, hasFamilyStamp

Constructor Summary

Constructors
Constructor and Description

VisibilityScanDeleteTracker()

Constructors
Constructor and Description
`VisibilityScanDeleteTracker()`

Method Summary

Methods
Modifier and Type	Method and Description
`void`	`add(Cell delCell)` Add the specified KeyValue to the list of deletes to check against for this row operation.
`private boolean`	`extractDeleteCellVisTags(Cell delCell, KeyValue.Type type)`
`DeleteTracker.DeleteResult`	`isDeleted(Cell cell)` Check if the specified KeyValue buffer has been deleted by a previously seen delete.
`void`	`reset()` Called between rows.

Methods inherited from class org.apache.hadoop.hbase.regionserver.ScanDeleteTracker
isEmpty, update

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

- Field Detail
  - LOG
```
private static final org.apache.commons.logging.Log LOG
```
  - EMPTY_TAG
```
private static final List<Tag> EMPTY_TAG
```
    This tag is used for the DELETE cell which has no visibility label.
  - visibilityTagsDeleteFamily
```
private List<Triple<List<Tag>,Byte,Long>> visibilityTagsDeleteFamily
```
  - visibilityTagsDeleteFamilyVersion
```
private List<Triple<List<Tag>,Byte,Long>> visibilityTagsDeleteFamilyVersion
```
  - visibilityTagsDeleteColumns
```
private List<Pair<List<Tag>,Byte>> visibilityTagsDeleteColumns
```
  - visiblityTagsDeleteColumnVersion
```
private List<Pair<List<Tag>,Byte>> visiblityTagsDeleteColumnVersion
```
- Constructor Detail
  - VisibilityScanDeleteTracker
```
public VisibilityScanDeleteTracker()
```
- Method Detail
  - add
```
public void add(Cell delCell)
```
    Description copied from class: ScanDeleteTracker
    
    Add the specified KeyValue to the list of deletes to check against for this row operation.
    This is called when a Delete is encountered.
    
    Specified by:
    
    add in interface DeleteTracker
    
    Overrides:
    
    add in class ScanDeleteTracker
    
    Parameters:
    delCell - - the delete cell
  - extractDeleteCellVisTags
```
private boolean extractDeleteCellVisTags(Cell delCell,
                               KeyValue.Type type)
```
  - isDeleted
```
public DeleteTracker.DeleteResult isDeleted(Cell cell)
```
    Description copied from class: ScanDeleteTracker
    
    Check if the specified KeyValue buffer has been deleted by a previously seen delete.
    
    Specified by:
    
    isDeleted in interface DeleteTracker
    
    Overrides:
    
    isDeleted in class ScanDeleteTracker
    
    Parameters:
    cell - - current cell to check if deleted by a previously seen delete
    
    Returns:
    deleteResult
  - reset
```
public void reset()
```
    Description copied from interface: DeleteTracker
    
    Called between rows.
    This clears everything as if a new DeleteTracker was instantiated.
    
    Specified by:
    
    reset in interface DeleteTracker
    
    Overrides:
    
    reset in class ScanDeleteTracker

Class VisibilityScanDeleteTracker

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.hadoop.hbase.regionserver.DeleteTracker

Field Summary

Fields inherited from class org.apache.hadoop.hbase.regionserver.ScanDeleteTracker

Constructor Summary

Method Summary

Methods inherited from class org.apache.hadoop.hbase.regionserver.ScanDeleteTracker

Methods inherited from class java.lang.Object

Field Detail

LOG

EMPTY_TAG

visibilityTagsDeleteFamily

visibilityTagsDeleteFamilyVersion

visibilityTagsDeleteColumns

visiblityTagsDeleteColumnVersion

Constructor Detail

VisibilityScanDeleteTracker

Method Detail

add

extractDeleteCellVisTags

isDeleted

reset