org.apache.hawq.pxf.plugins.hive

Class HiveColumnarSerdeResolver

java.lang.Object

org.apache.hawq.pxf.api.utilities.Plugin

org.apache.hawq.pxf.plugins.hive.HiveResolver

org.apache.hawq.pxf.plugins.hive.HiveColumnarSerdeResolver

All Implemented Interfaces:

ReadResolver

public class HiveColumnarSerdeResolver
extends HiveResolver

Specialized HiveResolver for a Hive table stored as RC file. Use together with HiveInputFormatFragmenter/HiveRCFileAccessor.

Field Summary

Fields inherited from class org.apache.hawq.pxf.api.utilities.Plugin

inputData

Constructor Summary

Constructors

Constructor and Description
HiveColumnarSerdeResolver(InputData input)

Method Summary

Modifier and Type	Method and Description
java.util.List<OneField>	getFields(OneRow onerow) getFields returns a singleton list of OneField item.

Methods inherited from class org.apache.hawq.pxf.api.utilities.Plugin

isThreadSafe

Methods inherited from class java.lang.Object

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

Constructor Detail

HiveColumnarSerdeResolver

public HiveColumnarSerdeResolver(InputData input)
                          throws java.lang.Exception

Throws:

java.lang.Exception

Method Detail

getFields

public java.util.List<OneField> getFields(OneRow onerow)
                                   throws java.lang.Exception

getFields returns a singleton list of OneField item. OneField item contains two fields: an integer representing the VARCHAR type and a Java Object representing the field value.

Specified by:

getFields in interface ReadResolver

Overrides:

getFields in class HiveResolver

Parameters:

onerow - the row to get the fields from

Returns:

the OneField list of one row.

Throws:

java.lang.Exception - if decomposing the row into fields failed