org.apache.drill.exec.store.parquet

Class ColumnDataReader

java.lang.Object

org.apache.drill.exec.store.parquet.ColumnDataReader

public class ColumnDataReader
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
class	ColumnDataReader.HadoopBytesInput

Field Summary

Fields

Modifier and Type	Field and Description
org.apache.hadoop.fs.FSDataInputStream	input

Constructor Summary

Constructors

Constructor and Description
ColumnDataReader(org.apache.hadoop.fs.FSDataInputStream input, long start, long length)

Method Summary

Methods

Modifier and Type	Method and Description
void	clear()
org.apache.hadoop.fs.FSDataInputStream	getInputStream()
org.apache.parquet.bytes.BytesInput	getPageAsBytesInput(int pageLength)
boolean	hasRemainder()
void	loadPage(DrillBuf target, int pageLength)
org.apache.parquet.format.PageHeader	readPageHeader()

Methods inherited from class java.lang.Object

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

Field Detail

input

public final org.apache.hadoop.fs.FSDataInputStream input

Constructor Detail

ColumnDataReader

public ColumnDataReader(org.apache.hadoop.fs.FSDataInputStream input,
                long start,
                long length)
                 throws IOException

Throws:

IOException

Method Detail

readPageHeader

public org.apache.parquet.format.PageHeader readPageHeader()
                                                    throws IOException

Throws:

IOException

getInputStream

public org.apache.hadoop.fs.FSDataInputStream getInputStream()

getPageAsBytesInput

public org.apache.parquet.bytes.BytesInput getPageAsBytesInput(int pageLength)
                                                        throws IOException

Throws:

IOException

loadPage

public void loadPage(DrillBuf target,
            int pageLength)
              throws IOException

Throws:

IOException

clear

public void clear()

hasRemainder

public boolean hasRemainder()
                     throws IOException

Throws:

IOException