Package org.apache.avro.mapreduce

Class AvroKeyValueOutputFormat<K,V>

java.lang.Object
org.apache.hadoop.mapreduce.OutputFormat<K,V>
org.apache.hadoop.mapreduce.lib.output.FileOutputFormat<K,V>
org.apache.avro.mapreduce.AvroOutputFormatBase<K,V>
org.apache.avro.mapreduce.AvroKeyValueOutputFormat<K,V>
Type Parameters:
K - The type of key. If an Avro type, it must be wrapped in an AvroKey.
V - The type of value. If an Avro type, it must be wrapped in an AvroValue.
public class AvroKeyValueOutputFormat<K,V> extends AvroOutputFormatBase<K,V>
FileOutputFormat for writing Avro container files of key/value pairs.

Since Avro container files can only contain records (not key/value pairs), this output format puts the key and value into an Avro generic record with two fields, named 'key' and 'value'.

The keys and values given to this output format may be Avro objects wrapped in AvroKey or AvroValue objects. The basic Writable types are also supported (e.g., IntWritable, Text); they will be converted to their corresponding Avro types.