com.facebook.hive.orc

Class OrcSerde

java.lang.Object

com.facebook.hive.orc.OrcSerde

All Implemented Interfaces:

org.apache.hadoop.hive.serde2.Deserializer, org.apache.hadoop.hive.serde2.SerDe, org.apache.hadoop.hive.serde2.Serializer

public class OrcSerde
extends Object
implements org.apache.hadoop.hive.serde2.SerDe

A serde class for ORC. It transparently passes the object to/from the ORC file reader/writer.

Constructor Summary

Constructors

Constructor and Description
OrcSerde()

Method Summary

Modifier and Type	Method and Description
Object	deserialize(org.apache.hadoop.io.Writable writable)
org.apache.hadoop.hive.serde2.objectinspector.ObjectInspector	getObjectInspector()
org.apache.hadoop.hive.serde2.SerDeStats	getSerDeStats() Always returns null, since serialized size doesn't make sense in the context of ORC files.
Class<? extends org.apache.hadoop.io.Writable>	getSerializedClass()
void	initialize(org.apache.hadoop.conf.Configuration conf, Properties table)
org.apache.hadoop.io.Writable	serialize(Object realRow, org.apache.hadoop.hive.serde2.objectinspector.ObjectInspector inspector)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

OrcSerde

public OrcSerde()

Method Detail

initialize

public void initialize(org.apache.hadoop.conf.Configuration conf,
                       Properties table)

Specified by:

initialize in interface org.apache.hadoop.hive.serde2.Deserializer

Specified by:

initialize in interface org.apache.hadoop.hive.serde2.Serializer

getSerializedClass

public Class<? extends org.apache.hadoop.io.Writable> getSerializedClass()

Specified by:

getSerializedClass in interface org.apache.hadoop.hive.serde2.Serializer

serialize

public org.apache.hadoop.io.Writable serialize(Object realRow,
                                               org.apache.hadoop.hive.serde2.objectinspector.ObjectInspector inspector)

Specified by:

serialize in interface org.apache.hadoop.hive.serde2.Serializer

deserialize

public Object deserialize(org.apache.hadoop.io.Writable writable)
                   throws org.apache.hadoop.hive.serde2.SerDeException

Specified by:

deserialize in interface org.apache.hadoop.hive.serde2.Deserializer

Throws:

org.apache.hadoop.hive.serde2.SerDeException

getObjectInspector

public org.apache.hadoop.hive.serde2.objectinspector.ObjectInspector getObjectInspector()
                                                                                 throws org.apache.hadoop.hive.serde2.SerDeException

Specified by:

getObjectInspector in interface org.apache.hadoop.hive.serde2.Deserializer

Throws:

org.apache.hadoop.hive.serde2.SerDeException

getSerDeStats

public org.apache.hadoop.hive.serde2.SerDeStats getSerDeStats()

Always returns null, since serialized size doesn't make sense in the context of ORC files.

Specified by:

getSerDeStats in interface org.apache.hadoop.hive.serde2.Deserializer

Specified by:

getSerDeStats in interface org.apache.hadoop.hive.serde2.Serializer

Returns:

null