org.apache.accumulo.core.client.mapreduce

Class AccumuloOutputFormat.AccumuloRecordWriter

java.lang.Object

org.apache.hadoop.mapreduce.RecordWriter<org.apache.hadoop.io.Text,Mutation>

org.apache.accumulo.core.client.mapreduce.AccumuloOutputFormat.AccumuloRecordWriter

Enclosing class:

AccumuloOutputFormat

protected static class AccumuloOutputFormat.AccumuloRecordWriter
extends org.apache.hadoop.mapreduce.RecordWriter<org.apache.hadoop.io.Text,Mutation>

A base class to be used to create RecordWriter instances that write to Accumulo.

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	AccumuloRecordWriter(org.apache.hadoop.mapreduce.TaskAttemptContext context)

Method Summary

Modifier and Type	Method and Description
void	addTable(org.apache.hadoop.io.Text tableName)
void	close(org.apache.hadoop.mapreduce.TaskAttemptContext attempt)
void	write(org.apache.hadoop.io.Text table, Mutation mutation) Push a mutation into a table.

Methods inherited from class java.lang.Object

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

Constructor Detail

AccumuloRecordWriter

protected AccumuloRecordWriter(org.apache.hadoop.mapreduce.TaskAttemptContext context)
                        throws AccumuloException,
                               AccumuloSecurityException,
                               IOException

Throws:

AccumuloException

AccumuloSecurityException

IOException

Method Detail

write

public void write(org.apache.hadoop.io.Text table,
                  Mutation mutation)
           throws IOException

Push a mutation into a table. If table is null, the defaultTable will be used. If AccumuloOutputFormat.canCreateTables(JobContext) is set, the table will be created if it does not exist. The table name must only contain alphanumerics and underscore.

Specified by:

write in class org.apache.hadoop.mapreduce.RecordWriter<org.apache.hadoop.io.Text,Mutation>

Throws:

IOException

addTable

public void addTable(org.apache.hadoop.io.Text tableName)
              throws AccumuloException,
                     AccumuloSecurityException

Throws:

AccumuloException

AccumuloSecurityException

close

public void close(org.apache.hadoop.mapreduce.TaskAttemptContext attempt)
           throws IOException,
                  InterruptedException

Specified by:

close in class org.apache.hadoop.mapreduce.RecordWriter<org.apache.hadoop.io.Text,Mutation>

Throws:

IOException

InterruptedException