org.apache.hive.storage.jdbc

Class JdbcSerDe

java.lang.Object

org.apache.hadoop.hive.serde2.AbstractSerDe

org.apache.hive.storage.jdbc.JdbcSerDe

All Implemented Interfaces:

Deserializer, SerDe, Serializer

public class JdbcSerDe
extends AbstractSerDe

Field Summary

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

configuration, log, partitionProperties, properties, tableProperties

Constructor Summary

Constructors

Constructor and Description
JdbcSerDe()

Method Summary

Modifier and Type	Method and Description
Object	deserialize(org.apache.hadoop.io.Writable blob)
ObjectInspector	getObjectInspector()
Class<? extends org.apache.hadoop.io.Writable>	getSerializedClass()
void	initialize(org.apache.hadoop.conf.Configuration configuration, Properties tableProperties, Properties partitionProperties) This method gets called multiple times by Hive.
DBRecordWritable	serialize(Object row, ObjectInspector inspector)

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

getColumnComments, getColumnNames, getColumnTypes, getConfiguration, getPartitionColumnComments, getPartitionColumnNames, getPartitionColumnTypes, getSerDeStats, parseColumnComments, parseColumnNames, parseColumnNames, parseColumnTypes, parseColumnTypes, shouldStoreFieldsInMetastore, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.hadoop.hive.serde2.SerDe

handleJobLevelConfiguration

Constructor Detail

JdbcSerDe

public JdbcSerDe()

Method Detail

initialize

public void initialize(org.apache.hadoop.conf.Configuration configuration,
                       Properties tableProperties,
                       Properties partitionProperties)
                throws SerDeException

This method gets called multiple times by Hive. On some invocations, the properties will be empty. We need to detect when the properties are not empty to initialize the class variables.

Overrides:

initialize in class AbstractSerDe

Throws:

SerDeException

serialize

public DBRecordWritable serialize(Object row,
                                  ObjectInspector inspector)
                           throws SerDeException

Specified by:

serialize in interface Serializer

Overrides:

serialize in class AbstractSerDe

Throws:

SerDeException

deserialize

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

Specified by:

deserialize in interface Deserializer

Overrides:

deserialize in class AbstractSerDe

Throws:

SerDeException

getObjectInspector

public ObjectInspector getObjectInspector()
                                   throws SerDeException

Throws:

SerDeException

getSerializedClass

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

Specified by:

getSerializedClass in interface Serializer

Specified by:

getSerializedClass in class AbstractSerDe