public interface Writable extends Serializable
| Modifier and Type | Method and Description |
|---|---|
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.
|
void write(DataOutput out) throws IOException
out.out - DataOuput to serialize this object into.IOExceptionvoid readFields(DataInput in) throws IOException
in.
For efficiency, implementations should attempt to re-use storage in the existing object where possible.
in - DataInput to deseriablize this object from.IOExceptionvoid writeType(DataOutput out) throws IOException
WritableFactory for details.out - DataOutput to write toIOException - For errors during writingdouble toDouble()
float toFloat()
int toInt()
long toLong()
WritableType getType()
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