public abstract class BaseInputFormat extends Object implements InputFormat
| Constructor and Description |
|---|
BaseInputFormat() |
| Modifier and Type | Method and Description |
|---|---|
RecordReader |
createReader(InputSplit split)
Creates a reader from an input split
|
WritableType |
getType()
Get the type of the writable.
|
void |
readFields(DataInput in)
Deserialize the fields of this object from
in. |
double |
toDouble()
Convert Writable to double.
|
float |
toFloat()
Convert Writable to float.
|
int |
toInt()
Convert Writable to int.
|
long |
toLong()
Convert Writable to long.
|
void |
write(DataOutput out)
Serialize the fields of this object to
out. |
void |
writeType(DataOutput out)
Write the type (a single short value) to the DataOutput.
|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, waitcreateReaderpublic RecordReader createReader(InputSplit split) throws IOException, InterruptedException
InputFormatcreateReader in interface InputFormatsplit - the split to readIOExceptionInterruptedExceptionpublic void write(DataOutput out) throws IOException
Writableout.write in interface Writableout - DataOuput to serialize this object into.IOExceptionpublic void readFields(DataInput in) throws IOException
Writablein.
For efficiency, implementations should attempt to re-use storage in the existing object where possible.
readFields in interface Writablein - DataInput to deseriablize this object from.IOExceptionpublic double toDouble()
Writablepublic float toFloat()
Writablepublic int toInt()
Writablepublic long toLong()
Writablepublic void writeType(DataOutput out) throws IOException
WritableWritableFactory for details.writeType in interface Writableout - DataOutput to write toIOException - For errors during writingpublic WritableType getType()
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