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java.lang.Objectorg.apache.hadoop.mapreduce.lib.db.DBInputFormat.NullDBWritable
@InterfaceStability.Evolving public static class DBInputFormat.NullDBWritable
A Class that does nothing, implementing DBWritable
| Constructor Summary | |
|---|---|
DBInputFormat.NullDBWritable()
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| Method Summary | |
|---|---|
void |
readFields(DataInput in)
Deserialize the fields of this object from in. |
void |
readFields(ResultSet arg0)
Reads the fields of the object from the ResultSet. |
void |
write(DataOutput out)
Serialize the fields of this object to out. |
void |
write(PreparedStatement arg0)
Sets the fields of the object in the PreparedStatement. |
| Methods inherited from class java.lang.Object |
|---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Constructor Detail |
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public DBInputFormat.NullDBWritable()
| Method Detail |
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public 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.
IOException
public void readFields(ResultSet arg0)
throws SQLException
DBWritableResultSet.
readFields in interface DBWritablearg0 - the ResultSet to get the fields from.
SQLException
public void write(DataOutput out)
throws IOException
Writableout.
write in interface Writableout - DataOuput to serialize this object into.
IOException
public void write(PreparedStatement arg0)
throws SQLException
DBWritablePreparedStatement.
write in interface DBWritablearg0 - the statement that the fields are put into.
SQLException
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