org.apache.hadoop.hbase
Interface HScannerInterface

All Known Subinterfaces:

HInternalScannerInterface

All Known Implementing Classes:

HAbstractScanner, HTable.ClientScanner

public interface HScannerInterface

HScannerInterface iterates through a set of rows. It's implemented by several classes.

Method Summary

void	close() Closes a scanner and releases any resources it has allocated
boolean	next(HStoreKey key, SortedMap<Text,byte[]> results) Grab the next row's worth of values.

Method Detail

next

boolean next(HStoreKey key,
             SortedMap<Text,byte[]> results)
             throws IOException

Grab the next row's worth of values. The scanner will return the most recent data value for each row that is not newer than the target time passed when the scanner was created.

Parameters:

key - will contain the row and timestamp upon return

results - will contain an entry for each column family member and its value

Returns:

true if data was returned

Throws:

IOException

close

void close()
           throws IOException

Closes a scanner and releases any resources it has allocated

Throws:

IOException