@InterfaceAudience.Public @InterfaceStability.Stable public class RegexMapper<K> extends Mapper<K,Text,Text,LongWritable>
Mapper
that extracts text matching a regular expression.Modifier and Type | Field and Description |
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static String |
GROUP |
static String |
PATTERN |
Constructor and Description |
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RegexMapper() |
Modifier and Type | Method and Description |
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void |
map(K key,
Text value,
org.apache.hadoop.mapreduce.Mapper.Context context)
Called once for each key/value pair in the input split.
|
void |
setup(org.apache.hadoop.mapreduce.Mapper.Context context)
Called once at the beginning of the task.
|
public void setup(org.apache.hadoop.mapreduce.Mapper.Context context)
Mapper
public void map(K key, Text value, org.apache.hadoop.mapreduce.Mapper.Context context) throws IOException, InterruptedException
Mapper
map
in class Mapper<K,Text,Text,LongWritable>
IOException
InterruptedException
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