public static class RegionSplitter.UniformSplit extends Object implements RegionSplitter.SplitAlgorithm
Modifier and Type | Field and Description |
---|---|
(package private) byte[] |
firstRowBytes |
(package private) byte[] |
lastRowBytes |
(package private) static byte |
xFF |
Constructor and Description |
---|
UniformSplit() |
Modifier and Type | Method and Description |
---|---|
byte[] |
firstRow()
In HBase, the first row is represented by an empty byte array.
|
byte[] |
lastRow()
In HBase, the last row is represented by an empty byte array.
|
String |
rowToStr(byte[] row)
n * byte array representing a row in HBase
|
String |
separator()
Returns the separator character to use when storing / printing the row
|
void |
setFirstRow(byte[] userInput)
Set the first row
|
void |
setFirstRow(String userInput)
In HBase, the last row is represented by an empty byte array.
|
void |
setLastRow(byte[] userInput)
Set the last row
|
void |
setLastRow(String userInput)
In HBase, the last row is represented by an empty byte array.
|
byte[] |
split(byte[] start,
byte[] end)
Split a pre-existing region into 2 regions.
|
byte[][] |
split(byte[] start,
byte[] end,
int numSplits,
boolean inclusive)
Some MapReduce jobs may want to run multiple mappers per region, this is intended for such
usecase.
|
byte[][] |
split(int numRegions)
Split an entire table.
|
byte[] |
strToRow(String input)
n * user or file input for row
|
String |
toString() |
static final byte xFF
byte[] firstRowBytes
byte[] lastRowBytes
public UniformSplit()
public byte[] split(byte[] start, byte[] end)
RegionSplitter.SplitAlgorithm
split
in interface RegionSplitter.SplitAlgorithm
public byte[][] split(int numRegions)
RegionSplitter.SplitAlgorithm
split
in interface RegionSplitter.SplitAlgorithm
public byte[][] split(byte[] start, byte[] end, int numSplits, boolean inclusive)
RegionSplitter.SplitAlgorithm
split
in interface RegionSplitter.SplitAlgorithm
start
- first row (inclusive)end
- last row (exclusive)numSplits
- number of splits to generateinclusive
- whether start and end are returned as split pointspublic byte[] firstRow()
RegionSplitter.SplitAlgorithm
firstRow
in interface RegionSplitter.SplitAlgorithm
public byte[] lastRow()
RegionSplitter.SplitAlgorithm
lastRow
in interface RegionSplitter.SplitAlgorithm
public void setFirstRow(String userInput)
RegionSplitter.SplitAlgorithm
setFirstRow
in interface RegionSplitter.SplitAlgorithm
public void setLastRow(String userInput)
RegionSplitter.SplitAlgorithm
setLastRow
in interface RegionSplitter.SplitAlgorithm
public void setFirstRow(byte[] userInput)
RegionSplitter.SplitAlgorithm
setFirstRow
in interface RegionSplitter.SplitAlgorithm
userInput
- byte array of the row key.public void setLastRow(byte[] userInput)
RegionSplitter.SplitAlgorithm
setLastRow
in interface RegionSplitter.SplitAlgorithm
userInput
- byte array of the row key.public byte[] strToRow(String input)
RegionSplitter.SplitAlgorithm
strToRow
in interface RegionSplitter.SplitAlgorithm
public String rowToStr(byte[] row)
RegionSplitter.SplitAlgorithm
rowToStr
in interface RegionSplitter.SplitAlgorithm
public String separator()
RegionSplitter.SplitAlgorithm
separator
in interface RegionSplitter.SplitAlgorithm
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