public static class HashTable.HashMapper extends TableMapper<ImmutableBytesWritable,ImmutableBytesWritable>
Modifier and Type | Field and Description |
---|---|
private ImmutableBytesWritable |
currentRow |
private HashTable.ResultHasher |
hasher |
private long |
targetBatchSize |
Constructor and Description |
---|
HashMapper() |
Modifier and Type | Method and Description |
---|---|
protected void |
cleanup(org.apache.hadoop.mapreduce.Mapper.Context context) |
protected void |
map(ImmutableBytesWritable key,
Result value,
org.apache.hadoop.mapreduce.Mapper.Context context) |
protected void |
setup(org.apache.hadoop.mapreduce.Mapper.Context context) |
private HashTable.ResultHasher hasher
private long targetBatchSize
private ImmutableBytesWritable currentRow
public HashMapper()
protected void setup(org.apache.hadoop.mapreduce.Mapper.Context context) throws IOException, InterruptedException
setup
in class org.apache.hadoop.mapreduce.Mapper<ImmutableBytesWritable,Result,ImmutableBytesWritable,ImmutableBytesWritable>
IOException
InterruptedException
protected void map(ImmutableBytesWritable key, Result value, org.apache.hadoop.mapreduce.Mapper.Context context) throws IOException, InterruptedException
map
in class org.apache.hadoop.mapreduce.Mapper<ImmutableBytesWritable,Result,ImmutableBytesWritable,ImmutableBytesWritable>
IOException
InterruptedException
protected void cleanup(org.apache.hadoop.mapreduce.Mapper.Context context) throws IOException, InterruptedException
cleanup
in class org.apache.hadoop.mapreduce.Mapper<ImmutableBytesWritable,Result,ImmutableBytesWritable,ImmutableBytesWritable>
IOException
InterruptedException
Copyright © 2007–2020 The Apache Software Foundation. All rights reserved.