|
||||||||||
| PREV CLASS NEXT CLASS | FRAMES NO FRAMES | |||||||||
| SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD | |||||||||
java.lang.Objectorg.apache.hadoop.mapreduce.InputSplit
org.apache.hadoop.mapreduce.lib.db.DBInputFormat.DBInputSplit
@InterfaceStability.Evolving public static class DBInputFormat.DBInputSplit
A InputSplit that spans a set of rows
| Constructor Summary | |
|---|---|
DBInputFormat.DBInputSplit()
Default Constructor |
|
DBInputFormat.DBInputSplit(long start,
long end)
Convenience Constructor |
|
| Method Summary | |
|---|---|
long |
getEnd()
|
long |
getLength()
Get the size of the split, so that the input splits can be sorted by size. |
String[] |
getLocations()
Get the list of nodes by name where the data for the split would be local. |
long |
getStart()
|
void |
readFields(DataInput input)
Deserialize the fields of this object from in. |
void |
write(DataOutput output)
Serialize the fields of this object to out. |
| Methods inherited from class java.lang.Object |
|---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Constructor Detail |
|---|
public DBInputFormat.DBInputSplit()
public DBInputFormat.DBInputSplit(long start,
long end)
start - the index of the first row to selectend - the index of the last row to select| Method Detail |
|---|
public String[] getLocations()
throws IOException
getLocations in class InputSplitIOExceptionpublic long getStart()
public long getEnd()
public long getLength()
throws IOException
InputSplit
getLength in class InputSplitIOException
public void readFields(DataInput input)
throws IOException
in.
For efficiency, implementations should attempt to re-use storage in the existing object where possible.
readFields in interface Writableinput - DataInput to deseriablize this object from.
IOException
public void write(DataOutput output)
throws IOException
out.
write in interface Writableoutput - DataOuput to serialize this object into.
IOException
|
||||||||||
| PREV CLASS NEXT CLASS | FRAMES NO FRAMES | |||||||||
| SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD | |||||||||