public abstract class StreamBaseRecordReader extends Object implements org.apache.hadoop.mapred.RecordReader<org.apache.hadoop.io.Text,org.apache.hadoop.io.Text>
StreamXmlRecordReader
Modifier and Type | Field and Description |
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protected static org.apache.commons.logging.Log |
LOG |
Constructor and Description |
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StreamBaseRecordReader(org.apache.hadoop.fs.FSDataInputStream in,
org.apache.hadoop.mapred.FileSplit split,
org.apache.hadoop.mapred.Reporter reporter,
org.apache.hadoop.mapred.JobConf job,
org.apache.hadoop.fs.FileSystem fs) |
Modifier and Type | Method and Description |
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void |
close()
Close this to future operations.
|
org.apache.hadoop.io.Text |
createKey() |
org.apache.hadoop.io.Text |
createValue() |
long |
getPos()
Returns the current position in the input.
|
float |
getProgress() |
abstract boolean |
next(org.apache.hadoop.io.Text key,
org.apache.hadoop.io.Text value)
Read a record.
|
abstract void |
seekNextRecordBoundary()
Implementation should seek forward in_ to the first byte of the next record.
|
public StreamBaseRecordReader(org.apache.hadoop.fs.FSDataInputStream in, org.apache.hadoop.mapred.FileSplit split, org.apache.hadoop.mapred.Reporter reporter, org.apache.hadoop.mapred.JobConf job, org.apache.hadoop.fs.FileSystem fs) throws IOException
IOException
public abstract boolean next(org.apache.hadoop.io.Text key, org.apache.hadoop.io.Text value) throws IOException
next
in interface org.apache.hadoop.mapred.RecordReader<org.apache.hadoop.io.Text,org.apache.hadoop.io.Text>
IOException
public long getPos() throws IOException
getPos
in interface org.apache.hadoop.mapred.RecordReader<org.apache.hadoop.io.Text,org.apache.hadoop.io.Text>
IOException
public void close() throws IOException
close
in interface org.apache.hadoop.mapred.RecordReader<org.apache.hadoop.io.Text,org.apache.hadoop.io.Text>
IOException
public float getProgress() throws IOException
getProgress
in interface org.apache.hadoop.mapred.RecordReader<org.apache.hadoop.io.Text,org.apache.hadoop.io.Text>
IOException
public org.apache.hadoop.io.Text createKey()
createKey
in interface org.apache.hadoop.mapred.RecordReader<org.apache.hadoop.io.Text,org.apache.hadoop.io.Text>
public org.apache.hadoop.io.Text createValue()
createValue
in interface org.apache.hadoop.mapred.RecordReader<org.apache.hadoop.io.Text,org.apache.hadoop.io.Text>
public abstract void seekNextRecordBoundary() throws IOException
IOException
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