public class LuceneSegmentRecordReader
extends org.apache.hadoop.mapreduce.RecordReader<org.apache.hadoop.io.Text,org.apache.hadoop.io.NullWritable>
RecordReader
implementation for Lucene segments. Each InputSplit
contains a separate Lucene segment.
Emits records consisting of a Text
document ID and a null key.Modifier and Type | Field and Description |
---|---|
static int |
USE_TERM_INFO |
Constructor and Description |
---|
LuceneSegmentRecordReader() |
Modifier and Type | Method and Description |
---|---|
void |
close() |
org.apache.hadoop.io.Text |
getCurrentKey() |
org.apache.hadoop.io.NullWritable |
getCurrentValue() |
float |
getProgress() |
void |
initialize(org.apache.hadoop.mapreduce.InputSplit split,
org.apache.hadoop.mapreduce.TaskAttemptContext context) |
boolean |
nextKeyValue() |
public static final int USE_TERM_INFO
public void initialize(org.apache.hadoop.mapreduce.InputSplit split, org.apache.hadoop.mapreduce.TaskAttemptContext context) throws IOException, InterruptedException
initialize
in class org.apache.hadoop.mapreduce.RecordReader<org.apache.hadoop.io.Text,org.apache.hadoop.io.NullWritable>
IOException
InterruptedException
public boolean nextKeyValue() throws IOException, InterruptedException
nextKeyValue
in class org.apache.hadoop.mapreduce.RecordReader<org.apache.hadoop.io.Text,org.apache.hadoop.io.NullWritable>
IOException
InterruptedException
public org.apache.hadoop.io.Text getCurrentKey() throws IOException, InterruptedException
getCurrentKey
in class org.apache.hadoop.mapreduce.RecordReader<org.apache.hadoop.io.Text,org.apache.hadoop.io.NullWritable>
IOException
InterruptedException
public org.apache.hadoop.io.NullWritable getCurrentValue() throws IOException, InterruptedException
getCurrentValue
in class org.apache.hadoop.mapreduce.RecordReader<org.apache.hadoop.io.Text,org.apache.hadoop.io.NullWritable>
IOException
InterruptedException
public float getProgress() throws IOException, InterruptedException
getProgress
in class org.apache.hadoop.mapreduce.RecordReader<org.apache.hadoop.io.Text,org.apache.hadoop.io.NullWritable>
IOException
InterruptedException
public void close() throws IOException
close
in interface Closeable
close
in interface AutoCloseable
close
in class org.apache.hadoop.mapreduce.RecordReader<org.apache.hadoop.io.Text,org.apache.hadoop.io.NullWritable>
IOException
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