org.apache.hadoop.mapred

インタフェース RecordWriter<K,V>

@InterfaceAudience.Public
 @InterfaceStability.Stable
public interface RecordWriter<K,V>

RecordWriter writes the output <key, value> pairs to an output file.

RecordWriter implementations write the job outputs to the FileSystem.

関連項目:

OutputFormat

メソッドのサマリー

修飾子とタイプ	メソッドと説明
void	close(Reporter reporter) Close this RecordWriter to future operations.
void	write(K key, V value) Writes a key/value pair.

メソッドの詳細

write

void write(K key,
           V value)
    throws IOException

Writes a key/value pair.

パラメータ:

key - the key to write.

value - the value to write.

例外:

IOException

close

void close(Reporter reporter)
    throws IOException

Close this RecordWriter to future operations.

パラメータ:

reporter - facility to report progress.

例外:

IOException