MajorCompactionScanQueryMatcher (Apache HBase 1.4.11 API)

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java.lang.Object
- org.apache.hadoop.hbase.regionserver.querymatcher.ScanQueryMatcher
- - org.apache.hadoop.hbase.regionserver.querymatcher.CompactionScanQueryMatcher
  - - org.apache.hadoop.hbase.regionserver.querymatcher.DropDeletesCompactionScanQueryMatcher
    - - org.apache.hadoop.hbase.regionserver.querymatcher.MajorCompactionScanQueryMatcher

@InterfaceAudience.Private
public class MajorCompactionScanQueryMatcher
extends DropDeletesCompactionScanQueryMatcher

Query matcher for major compaction.

Nested Class Summary
- Nested classes/interfaces inherited from class org.apache.hadoop.hbase.regionserver.querymatcher.ScanQueryMatcher
  ScanQueryMatcher.MatchCode

Field Summary
- Fields inherited from class org.apache.hadoop.hbase.regionserver.querymatcher.DropDeletesCompactionScanQueryMatcher
  earliestPutTs, timeToPurgeDeletes
- Fields inherited from class org.apache.hadoop.hbase.regionserver.querymatcher.CompactionScanQueryMatcher
  deletes, keepDeletedCells, maxReadPointToTrackVersions
- Fields inherited from class org.apache.hadoop.hbase.regionserver.querymatcher.ScanQueryMatcher
  columns, currentRow, now, oldestUnexpiredTS, rowComparator, startKey

Constructor Summary

Constructors
Constructor and Description
`MajorCompactionScanQueryMatcher(ScanInfo scanInfo, DeleteTracker deletes, long readPointToUse, long earliestPutTs, long oldestUnexpiredTS, long now)`

Method Summary

Methods
Modifier and Type	Method and Description
`ScanQueryMatcher.MatchCode`	`match(Cell cell)` Determines if the caller should do one of several things: seek/skip to the next row (MatchCode.SEEK_NEXT_ROW) seek/skip to the next column (MatchCode.SEEK_NEXT_COL) include the current KeyValue (MatchCode.INCLUDE) ignore the current KeyValue (MatchCode.SKIP) got to the next row (MatchCode.DONE)

Methods inherited from class org.apache.hadoop.hbase.regionserver.querymatcher.DropDeletesCompactionScanQueryMatcher
tryDropDelete

Methods inherited from class org.apache.hadoop.hbase.regionserver.querymatcher.CompactionScanQueryMatcher
create, getFilter, getNextKeyHint, hasNullColumnInQuery, isUserScan, moreRowsMayExistAfter, reset, trackDelete

Methods inherited from class org.apache.hadoop.hbase.regionserver.querymatcher.ScanQueryMatcher
checkDeleted, clearCurrentRow, compareKeyForNextColumn, compareKeyForNextRow, createStartKeyFromRow, currentRow, getKeyForNextColumn, getStartKey, instantiateDeleteTracker, preCheck, setToNewRow

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

- Constructor Detail
  - MajorCompactionScanQueryMatcher
```
public MajorCompactionScanQueryMatcher(ScanInfo scanInfo,
                               DeleteTracker deletes,
                               long readPointToUse,
                               long earliestPutTs,
                               long oldestUnexpiredTS,
                               long now)
```
- Method Detail
  - match
```
public ScanQueryMatcher.MatchCode match(Cell cell)
                                 throws IOException
```
    Description copied from class: ScanQueryMatcher
    Determines if the caller should do one of several things:
    - seek/skip to the next row (MatchCode.SEEK_NEXT_ROW)
    - seek/skip to the next column (MatchCode.SEEK_NEXT_COL)
    - include the current KeyValue (MatchCode.INCLUDE)
    - ignore the current KeyValue (MatchCode.SKIP)
    - got to the next row (MatchCode.DONE)
    Specified by:
    
    match in class ScanQueryMatcher
    
    Parameters:
    cell - KeyValue to check
    
    Returns:
    The match code instance.
    
    Throws:
    
    IOException - in case there is an internal consistency problem caused by a data corruption.

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