org.apache.hadoop.dynamodb.read

Class DefaultDynamoDBRecordReader

java.lang.Object

org.apache.hadoop.dynamodb.read.AbstractDynamoDBRecordReader<org.apache.hadoop.io.Text,DynamoDBItemWritable>

org.apache.hadoop.dynamodb.read.DefaultDynamoDBRecordReader

All Implemented Interfaces:

org.apache.hadoop.mapred.RecordReader<org.apache.hadoop.io.Text,DynamoDBItemWritable>

public class DefaultDynamoDBRecordReader
extends AbstractDynamoDBRecordReader<org.apache.hadoop.io.Text,DynamoDBItemWritable>

Constructor Summary

Constructors

Constructor and Description
DefaultDynamoDBRecordReader(DynamoDBRecordReaderContext context)

Method Summary

Modifier and Type	Method and Description
void	convertDynamoDBItemToValue(DynamoDBItemWritable item, DynamoDBItemWritable toValue) Convert a DynamoDB item to some value.
org.apache.hadoop.io.Text	createKey()
DynamoDBItemWritable	createValue()

Methods inherited from class org.apache.hadoop.dynamodb.read.AbstractDynamoDBRecordReader

close, getPos, getProgress, next

Methods inherited from class java.lang.Object

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

Constructor Detail

DefaultDynamoDBRecordReader

public DefaultDynamoDBRecordReader(DynamoDBRecordReaderContext context)

Method Detail

createKey

public org.apache.hadoop.io.Text createKey()

createValue

public DynamoDBItemWritable createValue()

convertDynamoDBItemToValue

public void convertDynamoDBItemToValue(DynamoDBItemWritable item,
                                       DynamoDBItemWritable toValue)

Description copied from class: AbstractDynamoDBRecordReader

Convert a DynamoDB item to some value. Note that the nature of this method requires V to have some form of setter since the converted value must be stored in toValue.

Parameters:

item - The item retrieved from DynamoDB

toValue - Where the converted item should be stored