@InternalExtensionOnly public class RowKeyUtil extends Object
Constructor and Description |
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RowKeyUtil() |
Modifier and Type | Method and Description |
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static byte[] |
calculateTheClosestNextRowKeyForPrefix(byte[] rowKeyPrefix)
When scanning for a prefix the scan should stop immediately after the the last row that has the
specified prefix.
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public static byte[] calculateTheClosestNextRowKeyForPrefix(byte[] rowKeyPrefix)
IMPORTANT: This converts a rowKeyPrefix into a rowKey.
If the prefix is an 'ASCII' string put into a byte[] then this is easy because you can
simply increment the last byte of the array. But if your application uses real binary rowids
you may run into the scenario that your prefix is something like: { 0x12,
0x23, 0xFF, 0xFF }
Then this stopRow needs to be fed into the actual scan
{ 0x12, 0x24 } (Notice that it is shorter now)
This method calculates the correct stop row value for this usecase.
rowKeyPrefix
- the rowKeyPrefix.