org.apache.hadoop.hbase.mapreduce

Class TableOutputFormat.TableRecordWriter

java.lang.Object

org.apache.hadoop.mapreduce.RecordWriter<KEY,org.apache.hadoop.hbase.client.Mutation>

org.apache.hadoop.hbase.mapreduce.TableOutputFormat.TableRecordWriter

Enclosing class:

TableOutputFormat<KEY>

protected class TableOutputFormat.TableRecordWriter
extends org.apache.hadoop.mapreduce.RecordWriter<KEY,org.apache.hadoop.hbase.client.Mutation>

Writes the reducer output to an HBase table.

Constructor Summary

Constructors

Constructor and Description
TableRecordWriter()

Method Summary

Modifier and Type	Method and Description
void	close(org.apache.hadoop.mapreduce.TaskAttemptContext context) Closes the writer, in this case flush table commits.
void	write(KEY key, org.apache.hadoop.hbase.client.Mutation value) Writes a key/value pair into the table.

Methods inherited from class java.lang.Object

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

Constructor Detail

TableRecordWriter

public TableRecordWriter()
                  throws IOException

Throws:

IOException

Method Detail

close

public void close(org.apache.hadoop.mapreduce.TaskAttemptContext context)
           throws IOException

Closes the writer, in this case flush table commits.

Specified by:

close in class org.apache.hadoop.mapreduce.RecordWriter<KEY,org.apache.hadoop.hbase.client.Mutation>

Parameters:

context - The context.

Throws:

IOException - When closing the writer fails.

See Also:

RecordWriter.close(TaskAttemptContext)

write

public void write(KEY key,
                  org.apache.hadoop.hbase.client.Mutation value)
           throws IOException

Writes a key/value pair into the table.

Specified by:

write in class org.apache.hadoop.mapreduce.RecordWriter<KEY,org.apache.hadoop.hbase.client.Mutation>

Parameters:

key - The key.

value - The value.

Throws:

IOException - When writing fails.

See Also:

RecordWriter.write(Object, Object)