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java.lang.Objectorg.apache.hadoop.hbase.regionserver.MinorCompactingStoreScanner
public class MinorCompactingStoreScanner
A scanner that does a minor compaction at the same time. Doesn't need to implement ChangedReadersObserver, since it doesn't scan memstore, only store files and optionally the memstore-snapshot.
Method Summary | |
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void |
close()
Close the KeyValue scanner. |
KeyValue |
next()
Return the next KeyValue in this scanner, iterating the scanner |
boolean |
next(List<KeyValue> results)
Grab the next row's worth of values. |
boolean |
next(List<KeyValue> results,
int limit)
Grab the next row's worth of values with a limit on the number of values to return. |
boolean |
next(StoreFile.Writer writer)
High performance merge scan. |
KeyValue |
peek()
Look at the next KeyValue in this scanner, but do not iterate scanner. |
boolean |
reseek(KeyValue key)
Reseek the scanner at or after the specified KeyValue. |
boolean |
seek(KeyValue key)
Seek the scanner at or after the specified KeyValue. |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Method Detail |
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public KeyValue peek()
KeyValueScanner
peek
in interface KeyValueScanner
public KeyValue next() throws IOException
KeyValueScanner
next
in interface KeyValueScanner
IOException
public boolean seek(KeyValue key)
KeyValueScanner
seek
in interface KeyValueScanner
key
- seek value
public boolean reseek(KeyValue key)
KeyValueScanner
reseek
in interface KeyValueScanner
key
- seek value (should be non-null)
public boolean next(StoreFile.Writer writer) throws IOException
writer
-
IOException
public boolean next(List<KeyValue> results) throws IOException
InternalScanner
next
in interface InternalScanner
results
- return output array
IOException
- epublic boolean next(List<KeyValue> results, int limit) throws IOException
InternalScanner
next
in interface InternalScanner
results
- return output arraylimit
- limit on row count to get
IOException
- epublic void close()
KeyValueScanner
close
in interface Closeable
close
in interface InternalScanner
close
in interface KeyValueScanner
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