org.apache.hadoop.hive.serde2

Class ByteStreamTypedSerDe

java.lang.Object

org.apache.hadoop.hive.serde2.AbstractSerDe

org.apache.hadoop.hive.serde2.TypedSerDe

org.apache.hadoop.hive.serde2.ByteStreamTypedSerDe

All Implemented Interfaces:

Deserializer, SerDe, Serializer

Direct Known Subclasses:

ThriftByteStreamTypedSerDe

public abstract class ByteStreamTypedSerDe
extends TypedSerDe

ByteStreamTypedSerDe.

Field Summary

Fields

Modifier and Type	Field and Description
protected ByteStream.Input	bis
protected ByteStream.Output	bos

Fields inherited from class org.apache.hadoop.hive.serde2.TypedSerDe

deserializeCache, objectClass, objectType

Fields inherited from class org.apache.hadoop.hive.serde2.AbstractSerDe

configErrors

Constructor Summary

Constructors

Constructor and Description
ByteStreamTypedSerDe(Type objectType)

Method Summary

Methods

Modifier and Type	Method and Description
Object	deserialize(org.apache.hadoop.io.Writable field) Deserialize an object out of a Writable blob.

Methods inherited from class org.apache.hadoop.hive.serde2.TypedSerDe

getObjectInspector, getObjectInspectorOptions, getSerDeStats, getSerializedClass, initialize, serialize

Methods inherited from class org.apache.hadoop.hive.serde2.AbstractSerDe

getConfigurationErrors, initialize

Methods inherited from class java.lang.Object

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

Field Detail

bis

protected ByteStream.Input bis

bos

protected ByteStream.Output bos

Constructor Detail

ByteStreamTypedSerDe

public ByteStreamTypedSerDe(Type objectType)
                     throws SerDeException

Throws:

SerDeException

Method Detail

deserialize

public Object deserialize(org.apache.hadoop.io.Writable field)
                   throws SerDeException

Description copied from class: AbstractSerDe

Deserialize an object out of a Writable blob. In most cases, the return value of this function will be constant since the function will reuse the returned object. If the client wants to keep a copy of the object, the client needs to clone the returned value by calling ObjectInspectorUtils.getStandardObject().

Specified by:

deserialize in interface Deserializer

Overrides:

deserialize in class TypedSerDe

Parameters:

field - The Writable object containing a serialized object

Returns:

A Java object representing the contents in the blob.

Throws:

SerDeException