zstd-jni 1.5.5-11 · com.github.luben.zstd.ZstdCompressCtx

Modifier and Type	Field and Description
private ZstdDictCompress	compression_dict
private long	nativePtr
private SequenceProducer	seqprod
private long	seqprod_state

Access	Constructor and Description
public	ZstdCompressCtx() Create a context for faster compress operations One such context is required for each thread - put this in a ThreadLocal.

Method Summary

Modifier and Type	Method and Description
public int	Returns: the size of the compressed data compress(ByteBuffer the destination buffer - must be direct. It is assumed that the `position()` of this buffer marks the offset at which the compressed data are to be written, and that the `limit()` of this buffer is the maximum compressed data size to allow. When this method returns successfully, its `position()` will be set to its current `position()` plus the compressed size of the data. dstBuf, ByteBuffer the source buffer - must be direct. It is assumed that the `position()` of this buffer marks the beginning of the uncompressed data to be compressed, and that the `limit()` of this buffer marks its end. When this method returns successfully, its `position()` will be set to the initial `limit()`. srcBuf) Compresses the data in buffer 'srcBuf'
public ByteBuffer	Returns: A newly allocated direct ByteBuffer containing the compressed data. compress(ByteBuffer the source buffer - must be direct. It is assumed that the `position()` of the buffer marks the beginning of the uncompressed data to be compressed, and that the `limit()` of this buffer marks its end. When this method returns successfully, its `position()` will be set to its initial `limit()`. srcBuf) Compresses the data in buffer 'srcBuf'
public int	compress(byte[] dst, byte[] src)
public byte[]	compress(byte[] src)
public int	Returns: the number of bytes written into buffer 'dstBuff'. compressByteArray(byte[] the destination buffer (byte array) dstBuff, int the start offset of 'dstBuff' dstOffset, int the size of 'dstBuff' (after 'dstOffset') dstSize, byte[] the source buffer (byte array) srcBuff, int the start offset of 'srcBuff' srcOffset, int the length of 'srcBuff' (after 'srcOffset') srcSize) Compresses byte array 'srcBuff' into byte array 'dstBuff' reusing this ZstdCompressCtx.
private static native long	compressByteArray0(long ptr, byte[] dst, int dstOffset, int dstSize, byte[] src, int srcOffset, int srcSize)
public int	Returns: the number of bytes written into buffer 'dstBuff'. compressDirectByteBuffer(ByteBuffer the destination buffer - must be direct dstBuff, int the start offset of 'dstBuff' dstOffset, int the size of 'dstBuff' (after 'dstOffset') dstSize, ByteBuffer the source buffer - must be direct srcBuff, int the start offset of 'srcBuff' srcOffset, int the length of 'srcBuff' (after 'srcOffset') srcSize) Compresses buffer 'srcBuff' into buffer 'dstBuff' reusing this ZstdCompressCtx.
private static native long	compressDirectByteBuffer0(long ptr, ByteBuffer dst, int dstOffset, int dstSize, ByteBuffer src, int srcOffset, int srcSize)
public boolean	Returns: true if all state has been flushed from internal buffers compressDirectByteBufferStream(ByteBuffer destination of compressed data dst, ByteBuffer buffer to compress src, EndDirective directive for handling the end of the stream endOp) Compress as much of the `src` `ByteBuffer` into the `dst` `ByteBuffer` as possible.
private static native long	compressDirectByteBufferStream0(long ptr, ByteBuffer dst, int dstOffset, int dstSize, ByteBuffer src, int srcSize, int srcOffset, int endOp) 4 pieces of information are packed into the return value of this method, which must be treated as an unsigned long.
pack-priv void	doClose() Implements abstract com.github.luben.zstd.AutoCloseBase.doClose.
private void	ensureOpen()
private static native void	free(long ptr)
public ZstdFrameProgression	getFrameProgression() Tells how much data has been ingested (read from input), consumed (input actually compressed) and produced (output) for current frame.
private static native ZstdFrameProgression	getFrameProgression0(long ptr)
pack-priv long	getNativePtr()
private static native long	init()
private native long	loadCDict0(long ptr, byte[] dict)
private native long	loadCDictFast0(long ptr, ZstdDictCompress dict)
public ZstdCompressCtx	loadDict(ZstdDictCompress the dictionary or `null` to remove loaded dictionary dict) Load compression dictionary to be used for subsequently compressed frames.
public ZstdCompressCtx	loadDict(byte[] the dictionary or `null` to remove loaded dictionary dict) Load compression dictionary to be used for subsequently compressed frames.
public ZstdCompressCtx	registerSequenceProducer(SequenceProducer the user-defined `SequenceProducer` to register. producer) Register an external sequence producer
public void	reset() Clear all state and parameters from the compression context.
private static native long	reset0(long ptr)
public ZstdCompressCtx	setChainLog(int chainLog)
public ZstdCompressCtx	setChecksum(boolean A 32-bits checksum of content is written at end of frame, default: false checksumFlag) Enable or disable compression checksums
private static native void	setChecksum0(long ptr, boolean checksumFlag)
public ZstdCompressCtx	setContentSize(boolean Content size will be written into frame header _whenever known_, default: true contentSizeFlag) Enable or disable content size
private static native void	setContentSize0(long ptr, boolean contentSizeFlag)
public ZstdCompressCtx	setDictID(boolean When applicable, dictionary's ID is written into frame header, default: true dictIDFlag) Enable or disable dictID
private static native void	setDictID0(long ptr, boolean dictIDFlag)
public ZstdCompressCtx	setEnableLongDistanceMatching(Zstd.ParamSwitch whether to enable long-distance matching. enableLDM) Enable or disable long-distance matching.
public ZstdCompressCtx	setHashLog(int hashLog)
public ZstdCompressCtx	setJobSize(int jobSize)
public ZstdCompressCtx	setLevel(int compression level, default: `Zstd#defaultCompressionLevel()` level) Set compression level
private static native void	setLevel0(long ptr, int level)
public ZstdCompressCtx	setLong(int Maximum allowed back-reference distance, expressed as power of 2. This will set a memory budget for streaming decompression, with larger values requiring more memory and typically compressing more. Must be clamped between 10 and 32/64 but values greater than 27 may not be decompressable in all context as they require more memory. 0 disables LDM. windowLog) Enable or disable LongDistanceMatching and set the window size
public ZstdCompressCtx	setMagicless(boolean A 32-bits magic number is written at start of frame, default: false magiclessFlag) Enable or disable magicless frames
public ZstdCompressCtx	setMinMatch(int minMatch)
public ZstdCompressCtx	setOverlapLog(int overlapLog)
public void	setPledgedSrcSize(long srcSize) Promise to compress a certain number of source bytes.
private static native long	setPledgedSrcSize0(long ptr, long srcSize)
public ZstdCompressCtx	setSearchForExternalRepcodes(Zstd.ParamSwitch whether to search for repcodes searchRepcodes) Set whether to search external sequences for repeated offsets that can be encoded as repcodes.
public ZstdCompressCtx	setSearchLog(int searchLog)
public ZstdCompressCtx	setSequenceProducerFallback(boolean fall back to the default internal sequence producer if an external sequence producer returns an error code, default: false fallbackFlag) Enable or disable sequence producer fallback
public ZstdCompressCtx	setStrategy(int strategy)
public ZstdCompressCtx	setTargetLength(int targetLength)
public ZstdCompressCtx	setValidateSequences(Zstd.ParamSwitch whether to enable sequence validation validateSequences) Enable or disable sequence validation.
public ZstdCompressCtx	setWindowLog(int windowLog)
public ZstdCompressCtx	setWorkers(int workers)

Inherited from com.github.luben.zstd.AutoCloseBase:: acquireSharedLock close releaseSharedLock storeFence

compression_dict	back to summary
private ZstdDictCompress compression_dict

nativePtr	back to summary
private long nativePtr

seqprod	back to summary
private SequenceProducer seqprod

seqprod_state	back to summary
private long seqprod_state

ZstdCompressCtx	back to summary
public ZstdCompressCtx() Create a context for faster compress operations One such context is required for each thread - put this in a ThreadLocal.

Method Detail

compress	back to summary
public int compress(ByteBuffer dstBuf, ByteBuffer srcBuf) Compresses the data in buffer 'srcBuf' Parameters dstBuf:ByteBuffer the destination buffer - must be direct. It is assumed that the `position()` of this buffer marks the offset at which the compressed data are to be written, and that the `limit()` of this buffer is the maximum compressed data size to allow. When this method returns successfully, its `position()` will be set to its current `position()` plus the compressed size of the data. srcBuf:ByteBuffer the source buffer - must be direct. It is assumed that the `position()` of this buffer marks the beginning of the uncompressed data to be compressed, and that the `limit()` of this buffer marks its end. When this method returns successfully, its `position()` will be set to the initial `limit()`. Returns:int the size of the compressed data

compress

back to summary

public int compress(ByteBuffer dstBuf, ByteBuffer srcBuf)

Compresses the data in buffer 'srcBuf'

Parameters

dstBuf:ByteBuffer

the destination buffer - must be direct. It is assumed that the `position()` of this buffer marks the offset at which the compressed data are to be written, and that the `limit()` of this buffer is the maximum compressed data size to allow.

When this method returns successfully, its `position()` will be set to its current `position()` plus the compressed size of the data.

srcBuf:ByteBuffer

the source buffer - must be direct. It is assumed that the `position()` of this buffer marks the beginning of the uncompressed data to be compressed, and that the `limit()` of this buffer marks its end.

When this method returns successfully, its `position()` will be set to the initial `limit()`.

Returns:int

the size of the compressed data

compress	back to summary
public ByteBuffer compress(ByteBuffer srcBuf) throws ZstdException Compresses the data in buffer 'srcBuf' Parameters srcBuf:ByteBuffer the source buffer - must be direct. It is assumed that the `position()` of the buffer marks the beginning of the uncompressed data to be compressed, and that the `limit()` of this buffer marks its end. When this method returns successfully, its `position()` will be set to its initial `limit()`. Returns:ByteBuffer A newly allocated direct ByteBuffer containing the compressed data.

compress

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public ByteBuffer compress(ByteBuffer srcBuf) throws ZstdException

Compresses the data in buffer 'srcBuf'

Parameters

srcBuf:ByteBuffer

the source buffer - must be direct. It is assumed that the `position()` of the buffer marks the beginning of the uncompressed data to be compressed, and that the `limit()` of this buffer marks its end.

When this method returns successfully, its `position()` will be set to its initial `limit()`.

Returns:ByteBuffer

A newly allocated direct ByteBuffer containing the compressed data.

compress	back to summary
public int compress(byte[] dst, byte[] src)

compress	back to summary
public byte[] compress(byte[] src)

compressByteArray	back to summary
public int compressByteArray(byte[] dstBuff, int dstOffset, int dstSize, byte[] srcBuff, int srcOffset, int srcSize) Compresses byte array 'srcBuff' into byte array 'dstBuff' reusing this ZstdCompressCtx. Destination buffer should be sized to handle worst cases situations (input data not compressible). Worst case size evaluation is provided by function ZSTD_compressBound(). Parameters dstBuff:byte[] the destination buffer (byte array) dstOffset:int the start offset of 'dstBuff' dstSize:int the size of 'dstBuff' (after 'dstOffset') srcBuff:byte[] the source buffer (byte array) srcOffset:int the start offset of 'srcBuff' srcSize:int the length of 'srcBuff' (after 'srcOffset') Returns:int the number of bytes written into buffer 'dstBuff'.

compressByteArray

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public int compressByteArray(byte[] dstBuff, int dstOffset, int dstSize, byte[] srcBuff, int srcOffset, int srcSize)

Compresses byte array 'srcBuff' into byte array 'dstBuff' reusing this ZstdCompressCtx. Destination buffer should be sized to handle worst cases situations (input data not compressible). Worst case size evaluation is provided by function ZSTD_compressBound().

Parameters

dstBuff:byte[]: the destination buffer (byte array)
dstOffset:int: the start offset of 'dstBuff'
dstSize:int: the size of 'dstBuff' (after 'dstOffset')
srcBuff:byte[]: the source buffer (byte array)
srcOffset:int: the start offset of 'srcBuff'
srcSize:int: the length of 'srcBuff' (after 'srcOffset')

Returns:int

the number of bytes written into buffer 'dstBuff'.

compressByteArray0	back to summary
private static native long compressByteArray0(long ptr, byte[] dst, int dstOffset, int dstSize, byte[] src, int srcOffset, int srcSize)

compressDirectByteBuffer	back to summary
public int compressDirectByteBuffer(ByteBuffer dstBuff, int dstOffset, int dstSize, ByteBuffer srcBuff, int srcOffset, int srcSize) Compresses buffer 'srcBuff' into buffer 'dstBuff' reusing this ZstdCompressCtx. Destination buffer should be sized to handle worst cases situations (input data not compressible). Worst case size evaluation is provided by function ZSTD_compressBound(). This is a low-level function that does not take into account or affect the `limit` or `position` of source or destination buffers. Parameters dstBuff:ByteBuffer the destination buffer - must be direct dstOffset:int the start offset of 'dstBuff' dstSize:int the size of 'dstBuff' (after 'dstOffset') srcBuff:ByteBuffer the source buffer - must be direct srcOffset:int the start offset of 'srcBuff' srcSize:int the length of 'srcBuff' (after 'srcOffset') Returns:int the number of bytes written into buffer 'dstBuff'.

compressDirectByteBuffer

back to summary

public int compressDirectByteBuffer(ByteBuffer dstBuff, int dstOffset, int dstSize, ByteBuffer srcBuff, int srcOffset, int srcSize)

Compresses buffer 'srcBuff' into buffer 'dstBuff' reusing this ZstdCompressCtx. Destination buffer should be sized to handle worst cases situations (input data not compressible). Worst case size evaluation is provided by function ZSTD_compressBound(). This is a low-level function that does not take into account or affect the `limit` or `position` of source or destination buffers.

Parameters

dstBuff:ByteBuffer: the destination buffer - must be direct
dstOffset:int: the start offset of 'dstBuff'
dstSize:int: the size of 'dstBuff' (after 'dstOffset')
srcBuff:ByteBuffer: the source buffer - must be direct
srcOffset:int: the start offset of 'srcBuff'
srcSize:int: the length of 'srcBuff' (after 'srcOffset')

Returns:int

the number of bytes written into buffer 'dstBuff'.

compressDirectByteBuffer0	back to summary
private static native long compressDirectByteBuffer0(long ptr, ByteBuffer dst, int dstOffset, int dstSize, ByteBuffer src, int srcOffset, int srcSize)

compressDirectByteBufferStream back to summary

compressDirectByteBufferStream	back to summary
public boolean compressDirectByteBufferStream(ByteBuffer dst, ByteBuffer src, EndDirective endOp) Compress as much of the `src` `ByteBuffer` into the `dst` `ByteBuffer` as possible. Parameters dst:ByteBuffer destination of compressed data src:ByteBuffer buffer to compress endOp:EndDirective directive for handling the end of the stream Returns:boolean true if all state has been flushed from internal buffers

public boolean compressDirectByteBufferStream(ByteBuffer dst, ByteBuffer src, EndDirective endOp)

Compress as much of the src ByteBuffer into the dst ByteBuffer as possible.

Parameters

dst:ByteBuffer: destination of compressed data
src:ByteBuffer: buffer to compress
endOp:EndDirective: directive for handling the end of the stream

Returns:boolean

true if all state has been flushed from internal buffers

compressDirectByteBufferStream0	back to summary
private static native long compressDirectByteBufferStream0(long ptr, ByteBuffer dst, int dstOffset, int dstSize, ByteBuffer src, int srcSize, int srcOffset, int endOp) 4 pieces of information are packed into the return value of this method, which must be treated as an unsigned long. The highest bit is set if all data has been flushed from internal buffers. The next 31 bits are the new position of the destination buffer. The next bit is set if an error occurred. If an error occurred, the lowest 31 bits encode a zstd error code. Otherwise, the lowest 31 bits are the new position of the source buffer.

compressDirectByteBufferStream0

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private static native long compressDirectByteBufferStream0(long ptr, ByteBuffer dst, int dstOffset, int dstSize, ByteBuffer src, int srcSize, int srcOffset, int endOp)

4 pieces of information are packed into the return value of this method, which must be treated as an unsigned long. The highest bit is set if all data has been flushed from internal buffers. The next 31 bits are the new position of the destination buffer. The next bit is set if an error occurred. If an error occurred, the lowest 31 bits encode a zstd error code. Otherwise, the lowest 31 bits are the new position of the source buffer.

doClose	back to summary
pack-priv void doClose() Implements abstract com.github.luben.zstd.AutoCloseBase.doClose.

ensureOpen	back to summary
private void ensureOpen()

free	back to summary
private static native void free(long ptr)

getFrameProgression	back to summary
public ZstdFrameProgression getFrameProgression() Tells how much data has been ingested (read from input), consumed (input actually compressed) and produced (output) for current frame.

getFrameProgression0	back to summary
private static native ZstdFrameProgression getFrameProgression0(long ptr)

getNativePtr	back to summary
pack-priv long getNativePtr()

init	back to summary
private static native long init()

loadCDict0	back to summary
private native long loadCDict0(long ptr, byte[] dict)

loadCDictFast0	back to summary
private native long loadCDictFast0(long ptr, ZstdDictCompress dict)

loadDict	back to summary
public ZstdCompressCtx loadDict(ZstdDictCompress dict) Load compression dictionary to be used for subsequently compressed frames. Parameters dict:ZstdDictCompress the dictionary or `null` to remove loaded dictionary

loadDict

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public ZstdCompressCtx loadDict(ZstdDictCompress dict)

Load compression dictionary to be used for subsequently compressed frames.

Parameters

dict:ZstdDictCompress: the dictionary or `null` to remove loaded dictionary

loadDict	back to summary
public ZstdCompressCtx loadDict(byte[] dict) Load compression dictionary to be used for subsequently compressed frames. Parameters dict:byte[] the dictionary or `null` to remove loaded dictionary

loadDict

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public ZstdCompressCtx loadDict(byte[] dict)

Load compression dictionary to be used for subsequently compressed frames.

Parameters

dict:byte[]: the dictionary or `null` to remove loaded dictionary

registerSequenceProducer back to summary

registerSequenceProducer	back to summary
public ZstdCompressCtx registerSequenceProducer(SequenceProducer producer) Register an external sequence producer Parameters producer:SequenceProducer the user-defined `SequenceProducer` to register.

public ZstdCompressCtx registerSequenceProducer(SequenceProducer producer)

Parameters

producer:SequenceProducer: the user-defined SequenceProducer to register.

reset	back to summary
public void reset() Clear all state and parameters from the compression context. This leaves the object in a state identical to a newly created compression context.

reset0	back to summary
private static native long reset0(long ptr)

setChainLog	back to summary
public ZstdCompressCtx setChainLog(int chainLog)

setChecksum	back to summary
public ZstdCompressCtx setChecksum(boolean checksumFlag) Enable or disable compression checksums Parameters checksumFlag:boolean A 32-bits checksum of content is written at end of frame, default: false

setChecksum

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public ZstdCompressCtx setChecksum(boolean checksumFlag)

Enable or disable compression checksums

Parameters

checksumFlag:boolean: A 32-bits checksum of content is written at end of frame, default: false

setChecksum0	back to summary
private static native void setChecksum0(long ptr, boolean checksumFlag)

setContentSize	back to summary
public ZstdCompressCtx setContentSize(boolean contentSizeFlag) Enable or disable content size Parameters contentSizeFlag:boolean Content size will be written into frame header _whenever known_, default: true

setContentSize

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public ZstdCompressCtx setContentSize(boolean contentSizeFlag)

Enable or disable content size

Parameters

contentSizeFlag:boolean: Content size will be written into frame header _whenever known_, default: true

setContentSize0	back to summary
private static native void setContentSize0(long ptr, boolean contentSizeFlag)

setDictID	back to summary
public ZstdCompressCtx setDictID(boolean dictIDFlag) Enable or disable dictID Parameters dictIDFlag:boolean When applicable, dictionary's ID is written into frame header, default: true

setDictID

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public ZstdCompressCtx setDictID(boolean dictIDFlag)

Enable or disable dictID

Parameters

dictIDFlag:boolean: When applicable, dictionary's ID is written into frame header, default: true

setDictID0	back to summary
private static native void setDictID0(long ptr, boolean dictIDFlag)

setEnableLongDistanceMatching	back to summary
public ZstdCompressCtx setEnableLongDistanceMatching(Zstd.ParamSwitch enableLDM) Enable or disable long-distance matching. Parameters enableLDM:Zstd.ParamSwitch whether to enable long-distance matching.

setEnableLongDistanceMatching

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public ZstdCompressCtx setEnableLongDistanceMatching(Zstd.ParamSwitch enableLDM)

Enable or disable long-distance matching.

Parameters

enableLDM:Zstd.ParamSwitch: whether to enable long-distance matching.

setHashLog	back to summary
public ZstdCompressCtx setHashLog(int hashLog)

setJobSize	back to summary
public ZstdCompressCtx setJobSize(int jobSize)

setLevel back to summary

setLevel	back to summary
public ZstdCompressCtx setLevel(int level) Set compression level Parameters level:int compression level, default: `Zstd#defaultCompressionLevel()`

public ZstdCompressCtx setLevel(int level)

Set compression level

Parameters

level:int: compression level, default: Zstd#defaultCompressionLevel()

setLevel0	back to summary
private static native void setLevel0(long ptr, int level)

setLong	back to summary
public ZstdCompressCtx setLong(int windowLog) Enable or disable LongDistanceMatching and set the window size Parameters windowLog:int Maximum allowed back-reference distance, expressed as power of 2. This will set a memory budget for streaming decompression, with larger values requiring more memory and typically compressing more. Must be clamped between 10 and 32/64 but values greater than 27 may not be decompressable in all context as they require more memory. 0 disables LDM.

setLong

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public ZstdCompressCtx setLong(int windowLog)

Enable or disable LongDistanceMatching and set the window size

Parameters

windowLog:int: Maximum allowed back-reference distance, expressed as power of 2. This will set a memory budget for streaming decompression, with larger values requiring more memory and typically compressing more. Must be clamped between 10 and 32/64 but values greater than 27 may not be decompressable in all context as they require more memory. 0 disables LDM.

setMagicless	back to summary
public ZstdCompressCtx setMagicless(boolean magiclessFlag) Enable or disable magicless frames Parameters magiclessFlag:boolean A 32-bits magic number is written at start of frame, default: false

setMagicless

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public ZstdCompressCtx setMagicless(boolean magiclessFlag)

Enable or disable magicless frames

Parameters

magiclessFlag:boolean: A 32-bits magic number is written at start of frame, default: false

setMinMatch	back to summary
public ZstdCompressCtx setMinMatch(int minMatch)

setOverlapLog	back to summary
public ZstdCompressCtx setOverlapLog(int overlapLog)

setPledgedSrcSize	back to summary
public void setPledgedSrcSize(long srcSize) Promise to compress a certain number of source bytes. Knowing the number of bytes to compress up front helps to choose proper compression settings and size internal buffers. Additionally, the pledged size is stored in the header of the output stream, allowing decompressors to know how much uncompressed data to expect. Attempting to compress more or less than the pledged size will result in an error.

setPledgedSrcSize

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public void setPledgedSrcSize(long srcSize)

Promise to compress a certain number of source bytes. Knowing the number of bytes to compress up front helps to choose proper compression settings and size internal buffers. Additionally, the pledged size is stored in the header of the output stream, allowing decompressors to know how much uncompressed data to expect. Attempting to compress more or less than the pledged size will result in an error.

setPledgedSrcSize0	back to summary
private static native long setPledgedSrcSize0(long ptr, long srcSize)

setSearchForExternalRepcodes

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public ZstdCompressCtx setSearchForExternalRepcodes(Zstd.ParamSwitch searchRepcodes)

Set whether to search external sequences for repeated offsets that can be encoded as repcodes.

Parameters

searchRepcodes:Zstd.ParamSwitch: whether to search for repcodes

setSearchLog	back to summary
public ZstdCompressCtx setSearchLog(int searchLog)

setSequenceProducerFallback

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public ZstdCompressCtx setSequenceProducerFallback(boolean fallbackFlag)

Enable or disable sequence producer fallback

Parameters

fallbackFlag:boolean: fall back to the default internal sequence producer if an external sequence producer returns an error code, default: false

setStrategy	back to summary
public ZstdCompressCtx setStrategy(int strategy)

setTargetLength	back to summary
public ZstdCompressCtx setTargetLength(int targetLength)

setValidateSequences

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public ZstdCompressCtx setValidateSequences(Zstd.ParamSwitch validateSequences)

Enable or disable sequence validation. Useful for the sequence-level API and with external sequence producers.

Parameters

validateSequences:Zstd.ParamSwitch: whether to enable sequence validation

setWindowLog	back to summary
public ZstdCompressCtx setWindowLog(int windowLog)

setWorkers	back to summary
public ZstdCompressCtx setWorkers(int workers)

public Class ZstdCompressCtx

Field Summary

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Field Detail

Constructor Detail

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