Package org.nd4j.linalg.compression

Class CompressedDataBuffer

java.lang.Object

org.nd4j.linalg.api.buffer.BaseDataBuffer

org.nd4j.linalg.compression.CompressedDataBuffer

All Implemented Interfaces:

Serializable, AutoCloseable, DataBuffer

public class CompressedDataBuffer
extends BaseDataBuffer

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from interface org.nd4j.linalg.api.buffer.DataBuffer

DataBuffer.AllocationMode, DataBuffer.TypeEx

Field Summary

Fields

Modifier and Type	Field	Description
protected CompressionDescriptor	compressionDescriptor

Fields inherited from class org.nd4j.linalg.api.buffer.BaseDataBuffer

allocationMode, attached, constant, elementSize, indexer, length, offset, originalBuffer, originalOffset, parentWorkspace, pointer, referenced, released, TO_STRING_MAX_ELEMENTS, type, underlyingLength, workspaceGenerationId, wrappedDataBuffer

Constructor Summary

Constructors

Constructor	Description
CompressedDataBuffer(org.bytedeco.javacpp.Pointer pointer, @NonNull CompressionDescriptor descriptor)

Method Summary

Modifier and Type	Method	Description
org.bytedeco.javacpp.Pointer	addressPointer()	Returns the address of the pointer wrapped in a Pointer
DataBuffer	create(double[] data)	Create the data buffer with respect to the given byte buffer
DataBuffer	create(float[] data)	Create the data buffer with respect to the given byte buffer
DataBuffer	create(int[] data)	Create the data buffer with respect to the given byte buffer
protected DataBuffer	create(long length)	Create with length
DataBuffer	dup()	Return a copy of this buffer
protected double	getDoubleUnsynced(long index)
protected float	getFloatUnsynced(long index)
protected int	getIntUnsynced(long index)
protected long	getLongUnsynced(long index)
protected void	initTypeAndSize()	Initialize the opType of this buffer
long	length()	Returns the length of the buffer
void	pointerIndexerByCurrentType(DataType currentType)
static DataBuffer	readUnknown(DataInputStream s, DataBuffer.AllocationMode allocMode, long length, DataType type)	Drop-in replacement wrapper for BaseDataBuffer.read() method, aware of CompressedDataBuffer
DataBuffer	reallocate(long length)	Reallocate the native memory of the buffer
protected void	setIndexer(org.bytedeco.javacpp.indexer.Indexer indexer)
void	syncToPrimary()	This method synchronizes host memory
void	syncToSpecial()	This method synchronizes device memory
void	write(DataOutputStream out)

Methods inherited from class org.nd4j.linalg.api.buffer.BaseDataBuffer

addReferencing, address, allocationMode, array, asBytes, asDouble, asFloat, asInt, asLong, asNio, asNioDouble, asNioFloat, asNioInt, asNioLong, assign, assign, assign, assign, assign, assign, assign, assign, assign, assign, capacity, close, closeable, copyAtStride, dataType, destroy, dirty, doReadObject, equals, fillPointerWithZero, flush, fromFloat, getDouble, getDoublesAt, getDoublesAt, getElementSize, getFloat, getFloatsAt, getFloatsAt, getGenerationId, getInt, getIntsAt, getIntsAt, getLong, getLongsAt, getLongsAt, getNumber, getParentWorkspace, getShort, hashCode, indexer, isAttached, isConstant, isInScope, isPersist, markReleased, offset, originalDataBuffer, originalOffset, persist, pickReferent, platformAddress, pointer, put, put, put, put, put, putByDestinationType, read, read, readContent, readHeader, references, release, removeReferencing, sameUnderlyingData, setConstant, setData, setData, setData, setData, setData, setData, setData, setNioBuffer, toFloat, toString, underlyingDataBuffer, underlyingLength, unPersist, wasClosed, wrappedBuffer, write

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

compressionDescriptor

protected CompressionDescriptor compressionDescriptor

Constructor Detail

CompressedDataBuffer

public CompressedDataBuffer(org.bytedeco.javacpp.Pointer pointer,
                            @NonNull
                            @NonNull CompressionDescriptor descriptor)

Method Detail

initTypeAndSize

protected void initTypeAndSize()

Initialize the opType of this buffer

Specified by:

initTypeAndSize in class BaseDataBuffer

write

public void write(DataOutputStream out)
           throws IOException

Specified by:

write in interface DataBuffer

Overrides:

write in class BaseDataBuffer

Throws:

IOException

setIndexer

protected void setIndexer(org.bytedeco.javacpp.indexer.Indexer indexer)

Overrides:

setIndexer in class BaseDataBuffer

addressPointer

public org.bytedeco.javacpp.Pointer addressPointer()

Description copied from interface: DataBuffer

Returns the address of the pointer wrapped in a Pointer

Specified by:

addressPointer in interface DataBuffer

Specified by:

addressPointer in class BaseDataBuffer

Returns:

the address of the pointer wrapped in a Pointer

readUnknown

public static DataBuffer readUnknown(DataInputStream s,
                                     DataBuffer.AllocationMode allocMode,
                                     long length,
                                     DataType type)

Drop-in replacement wrapper for BaseDataBuffer.read() method, aware of CompressedDataBuffer

Parameters:

s -

Returns:

dup

public DataBuffer dup()

Description copied from interface: DataBuffer

Return a copy of this buffer

Specified by:

dup in interface DataBuffer

Overrides:

dup in class BaseDataBuffer

Returns:

a copy of this buffer

length

public long length()

Description copied from interface: DataBuffer

Returns the length of the buffer

Specified by:

length in interface DataBuffer

Overrides:

length in class BaseDataBuffer

Returns:

the length of the buffer

create

protected DataBuffer create(long length)

Create with length

Specified by:

create in class BaseDataBuffer

Parameters:

length - a databuffer of the same opType as this with the given length

Returns:

a data buffer with the same length and datatype as this one

create

public DataBuffer create(double[] data)

Create the data buffer with respect to the given byte buffer

Specified by:

create in class BaseDataBuffer

Parameters:

data - the buffer to create

Returns:

the data buffer based on the given buffer

create

public DataBuffer create(float[] data)

Create the data buffer with respect to the given byte buffer

Specified by:

create in class BaseDataBuffer

Parameters:

data - the buffer to create

Returns:

the data buffer based on the given buffer

create

public DataBuffer create(int[] data)

Create the data buffer with respect to the given byte buffer

Specified by:

create in class BaseDataBuffer

Parameters:

data - the buffer to create

Returns:

the data buffer based on the given buffer

pointerIndexerByCurrentType

public void pointerIndexerByCurrentType(DataType currentType)

Specified by:

pointerIndexerByCurrentType in class BaseDataBuffer

reallocate

public DataBuffer reallocate(long length)

Description copied from interface: DataBuffer

Reallocate the native memory of the buffer

Specified by:

reallocate in interface DataBuffer

Specified by:

reallocate in class BaseDataBuffer

Parameters:

length - the new length of the buffer

Returns:

this databuffer

syncToPrimary

public void syncToPrimary()

Description copied from class: BaseDataBuffer

This method synchronizes host memory

Specified by:

syncToPrimary in class BaseDataBuffer

syncToSpecial

public void syncToSpecial()

Description copied from class: BaseDataBuffer

This method synchronizes device memory

Specified by:

syncToSpecial in class BaseDataBuffer

getDoubleUnsynced

protected double getDoubleUnsynced(long index)

Specified by:

getDoubleUnsynced in class BaseDataBuffer

getFloatUnsynced

protected float getFloatUnsynced(long index)

Specified by:

getFloatUnsynced in class BaseDataBuffer

getLongUnsynced

protected long getLongUnsynced(long index)

Specified by:

getLongUnsynced in class BaseDataBuffer

getIntUnsynced

protected int getIntUnsynced(long index)

Specified by:

getIntUnsynced in class BaseDataBuffer