org.apache.parquet.column.values.rle

Class RunLengthBitPackingHybridValuesWriter

java.lang.Object

org.apache.parquet.column.values.ValuesWriter

org.apache.parquet.column.values.rle.RunLengthBitPackingHybridValuesWriter

All Implemented Interfaces:

AutoCloseable

public class RunLengthBitPackingHybridValuesWriter
extends ValuesWriter

Field Summary

Fields

Modifier and Type	Field and Description
protected RunLengthBitPackingHybridEncoder	encoder

Constructor Summary

Constructors

Modifier	Constructor and Description
	RunLengthBitPackingHybridValuesWriter(int bitWidth, int initialCapacity, int pageSize, ByteBufferAllocator allocator)
protected	RunLengthBitPackingHybridValuesWriter(RunLengthBitPackingHybridEncoder encoder)

Method Summary

Modifier and Type	Method and Description
void	close() Called to close the values writer.
long	getAllocatedSize() ( > ValuesWriter.getBufferedSize() )
long	getBufferedSize() used to decide if we want to work to the next page
BytesInput	getBytes()
Encoding	getEncoding() called after getBytes() and before reset()
String	memUsageString(String prefix)
void	reset() called after getBytes() to reset the current buffer and start writing the next page
void	writeBoolean(boolean v)
void	writeInteger(int v)

Methods inherited from class org.apache.parquet.column.values.ValuesWriter

resetDictionary, toDictPageAndClose, writeByte, writeBytes, writeDouble, writeFloat, writeLong

Methods inherited from class java.lang.Object

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

Field Detail

encoder

protected final RunLengthBitPackingHybridEncoder encoder

Constructor Detail

RunLengthBitPackingHybridValuesWriter

public RunLengthBitPackingHybridValuesWriter(int bitWidth,
                                             int initialCapacity,
                                             int pageSize,
                                             ByteBufferAllocator allocator)

RunLengthBitPackingHybridValuesWriter

protected RunLengthBitPackingHybridValuesWriter(RunLengthBitPackingHybridEncoder encoder)

Method Detail

writeInteger

public void writeInteger(int v)

Overrides:

writeInteger in class ValuesWriter

Parameters:

v - the value to encode

writeBoolean

public void writeBoolean(boolean v)

Overrides:

writeBoolean in class ValuesWriter

Parameters:

v - the value to encode

getBufferedSize

public long getBufferedSize()

Description copied from class: ValuesWriter

used to decide if we want to work to the next page

Specified by:

getBufferedSize in class ValuesWriter

Returns:

the size of the currently buffered data (in bytes)

getAllocatedSize

public long getAllocatedSize()

Description copied from class: ValuesWriter

( > ValuesWriter.getBufferedSize() )

Specified by:

getAllocatedSize in class ValuesWriter

Returns:

the allocated size of the buffer

getBytes

public BytesInput getBytes()

Specified by:

getBytes in class ValuesWriter

Returns:

the bytes buffered so far to write to the current page

getEncoding

public Encoding getEncoding()

Description copied from class: ValuesWriter

called after getBytes() and before reset()

Specified by:

getEncoding in class ValuesWriter

Returns:

the encoding that was used to encode the bytes

reset

public void reset()

Description copied from class: ValuesWriter

called after getBytes() to reset the current buffer and start writing the next page

Specified by:

reset in class ValuesWriter

close

public void close()

Description copied from class: ValuesWriter

Called to close the values writer. Any output stream is closed and can no longer be used. All resources are released.

Specified by:

close in interface AutoCloseable

Overrides:

close in class ValuesWriter

memUsageString

public String memUsageString(String prefix)

Specified by:

memUsageString in class ValuesWriter