org.apache.hadoop.hbase.io.hfile

类 HFileContext

java.lang.Object

org.apache.hadoop.hbase.io.hfile.HFileContext

所有已实现的接口:

Cloneable, HeapSize

@InterfaceAudience.Private
public class HFileContext
extends Object
implements HeapSize, Cloneable

This carries the information on some of the meta data about the HFile. This meta data is used across the HFileWriter/Readers and the HFileBlocks. This helps to add new information to the HFile.

字段概要

字段

限定符和类型	字段和说明
static int	DEFAULT_BYTES_PER_CHECKSUM

构造器概要

构造器

构造器和说明
HFileContext()
HFileContext(boolean useHBaseChecksum, boolean includesMvcc, boolean includesTags, Compression.Algorithm compressAlgo, boolean compressTags, ChecksumType checksumType, int bytesPerChecksum, int blockSize, DataBlockEncoding encoding, Encryption.Context cryptoContext, long fileCreateTime, String hfileName, byte[] columnFamily, byte[] tableName)
HFileContext(HFileContext context) Copy constructor

方法概要

方法

限定符和类型	方法和说明
HFileContext	clone()
int	getBlocksize()
int	getBytesPerChecksum()
ChecksumType	getChecksumType()
byte[]	getColumnFamily()
Compression.Algorithm	getCompression()
DataBlockEncoding	getDataBlockEncoding()
Encryption.Context	getEncryptionContext()
long	getFileCreateTime()
String	getHFileName()
byte[]	getTableName()
long	heapSize() HeapSize implementation NOTE : The heapsize should be altered as and when new state variable are added
boolean	isCompressedOrEncrypted()
boolean	isCompressTags()
boolean	isIncludesMvcc()
boolean	isIncludesTags()
boolean	isUseHBaseChecksum()
void	setCompression(Compression.Algorithm compressAlgo)
void	setCompressTags(boolean compressTags)
void	setDataBlockEncoding(DataBlockEncoding encoding)
void	setEncryptionContext(Encryption.Context cryptoContext)
void	setFileCreateTime(long fileCreateTime)
void	setIncludesMvcc(boolean includesMvcc)
void	setIncludesTags(boolean includesTags)
String	toString()

从类继承的方法 java.lang.Object

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

字段详细资料

DEFAULT_BYTES_PER_CHECKSUM

public static final int DEFAULT_BYTES_PER_CHECKSUM

另请参阅:

常量字段值

构造器详细资料

HFileContext

public HFileContext()

HFileContext

public HFileContext(HFileContext context)

Copy constructor

参数:

context -

HFileContext

public HFileContext(boolean useHBaseChecksum,
            boolean includesMvcc,
            boolean includesTags,
            Compression.Algorithm compressAlgo,
            boolean compressTags,
            ChecksumType checksumType,
            int bytesPerChecksum,
            int blockSize,
            DataBlockEncoding encoding,
            Encryption.Context cryptoContext,
            long fileCreateTime,
            String hfileName,
            byte[] columnFamily,
            byte[] tableName)

方法详细资料

isCompressedOrEncrypted

public boolean isCompressedOrEncrypted()

返回:

true when on-disk blocks from this file are compressed, and/or encrypted; false otherwise.

getCompression

public Compression.Algorithm getCompression()

setCompression

public void setCompression(Compression.Algorithm compressAlgo)

isUseHBaseChecksum

public boolean isUseHBaseChecksum()

isIncludesMvcc

public boolean isIncludesMvcc()

setIncludesMvcc

public void setIncludesMvcc(boolean includesMvcc)

isIncludesTags

public boolean isIncludesTags()

setIncludesTags

public void setIncludesTags(boolean includesTags)

setFileCreateTime

public void setFileCreateTime(long fileCreateTime)

isCompressTags

public boolean isCompressTags()

setCompressTags

public void setCompressTags(boolean compressTags)

getChecksumType

public ChecksumType getChecksumType()

getBytesPerChecksum

public int getBytesPerChecksum()

getBlocksize

public int getBlocksize()

getFileCreateTime

public long getFileCreateTime()

getDataBlockEncoding

public DataBlockEncoding getDataBlockEncoding()

setDataBlockEncoding

public void setDataBlockEncoding(DataBlockEncoding encoding)

getEncryptionContext

public Encryption.Context getEncryptionContext()

setEncryptionContext

public void setEncryptionContext(Encryption.Context cryptoContext)

getHFileName

public String getHFileName()

getColumnFamily

public byte[] getColumnFamily()

getTableName

public byte[] getTableName()

heapSize

public long heapSize()

HeapSize implementation NOTE : The heapsize should be altered as and when new state variable are added

指定者:

heapSize 在接口中 HeapSize

返回:

heap size of the HFileContext

clone

public HFileContext clone()

覆盖:

clone 在类中 Object

toString

public String toString()

覆盖:

toString 在类中 Object