org.apache.hawq.pxf.plugins.hdfs

Class StringPassResolver

java.lang.Object

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

org.apache.hawq.pxf.plugins.hdfs.StringPassResolver

All Implemented Interfaces:

ReadResolver, WriteResolver

public class StringPassResolver
extends Plugin
implements ReadResolver, WriteResolver

StringPassResolver handles "deserialization" and serialization of String records. StringPassResolver implements ReadResolver and WriteResolver interfaces. Returns strings as-is.

Field Summary

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

inputData

Constructor Summary

Constructors

Constructor and Description
StringPassResolver(InputData inputData) Constructs a StringPassResolver.

Method Summary

Modifier and Type	Method and Description
java.util.List<OneField>	getFields(OneRow onerow) Returns a list of the fields of one record.
OneRow	setFields(java.util.List<OneField> record) Creates a OneRow object from the singleton list.

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

StringPassResolver

public StringPassResolver(InputData inputData)

Constructs a StringPassResolver.

Parameters:

inputData - input all input parameters coming from the client request

Method Detail

getFields

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

Returns a list of the fields of one record. Each record field is represented by a OneField item. OneField item contains two fields: an integer representing the field type and a Java Object representing the field value.

Specified by:

getFields in interface ReadResolver

Parameters:

onerow - the row to get the fields from

Returns:

the OneField list of one row.

setFields

public OneRow setFields(java.util.List<OneField> record)

Creates a OneRow object from the singleton list.

Specified by:

setFields in interface WriteResolver

Parameters:

record - list of OneField

Returns:

the constructed OneRow