org.apache.hadoop.hbase.io.hfile

Class HFileWriterV3

java.lang.Object

org.apache.hadoop.hbase.io.hfile.AbstractHFileWriter

org.apache.hadoop.hbase.io.hfile.HFileWriterV2

org.apache.hadoop.hbase.io.hfile.HFileWriterV3

All Implemented Interfaces:

Closeable, AutoCloseable, HFile.Writer

@InterfaceAudience.Private
public class HFileWriterV3
extends HFileWriterV2

HFile writer for version 3.

Field Summary

Fields inherited from class org.apache.hadoop.hbase.io.hfile.HFileWriterV2

fsBlockWriter, KEY_VALUE_VER_WITH_MEMSTORE, KEY_VALUE_VERSION, lastDataBlockOffset, MAX_MEMSTORE_TS_KEY, maxMemstoreTS

Fields inherited from class org.apache.hadoop.hbase.io.hfile.AbstractHFileWriter

blockEncoder, cacheConf, closeOutputStream, comparator, entryCount, fileInfo, firstKeyInBlock, hFileContext, lastKeyBuffer, lastKeyLength, lastKeyOffset, metaData, metaNames, name, outputStream, path, totalKeyLength, totalUncompressedBytes, totalValueLength

Constructor Summary

Constructors

Constructor and Description
HFileWriterV3(org.apache.hadoop.conf.Configuration conf, CacheConfig cacheConf, org.apache.hadoop.fs.FileSystem fs, org.apache.hadoop.fs.Path path, org.apache.hadoop.fs.FSDataOutputStream ostream, KeyValue.KVComparator comparator, HFileContext fileContext) Constructor that takes a path, creates and closes the output stream.

Method Summary

Methods

Modifier and Type	Method and Description
void	append(byte[] key, byte[] value) Add key/value to file.
void	append(byte[] key, byte[] value, byte[] tag) Add key/value to file.
void	append(KeyValue kv) Add key/value to file.
protected void	finishClose(FixedFileTrailer trailer) Sets remaining trailer fields, writes the trailer to disk, and optionally closes the output stream.
protected void	finishFileInfo() Add last bits of metadata to file info before it is written out.
protected int	getMajorVersion()
protected int	getMinorVersion()

Methods inherited from class org.apache.hadoop.hbase.io.hfile.HFileWriterV2

addDeleteFamilyBloomFilter, addGeneralBloomFilter, addInlineBlockWriter, append, appendMetaBlock, checkBlockBoundary, close, finishInit, getFileContext, newBlock

Methods inherited from class org.apache.hadoop.hbase.io.hfile.AbstractHFileWriter

appendFileInfo, checkKey, checkValue, compressionByName, createOutputStream, getPath, toString, writeFileInfo

Methods inherited from class java.lang.Object

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

Constructor Detail

HFileWriterV3

public HFileWriterV3(org.apache.hadoop.conf.Configuration conf,
             CacheConfig cacheConf,
             org.apache.hadoop.fs.FileSystem fs,
             org.apache.hadoop.fs.Path path,
             org.apache.hadoop.fs.FSDataOutputStream ostream,
             KeyValue.KVComparator comparator,
             HFileContext fileContext)
              throws IOException

Constructor that takes a path, creates and closes the output stream.

Throws:

IOException

Method Detail

append

public void append(KeyValue kv)
            throws IOException

Add key/value to file. Keys must be added in an order that agrees with the Comparator passed on construction.

Specified by:

append in interface HFile.Writer

Overrides:

append in class HFileWriterV2

Parameters:

kv - KeyValue to add. Cannot be empty nor null.

Throws:

IOException

append

public void append(byte[] key,
          byte[] value)
            throws IOException

Add key/value to file. Keys must be added in an order that agrees with the Comparator passed on construction.

Specified by:

append in interface HFile.Writer

Overrides:

append in class HFileWriterV2

Parameters:

key - Key to add. Cannot be empty nor null.

value - Value to add. Cannot be empty nor null.

Throws:

IOException

append

public void append(byte[] key,
          byte[] value,
          byte[] tag)
            throws IOException

Add key/value to file. Keys must be added in an order that agrees with the Comparator passed on construction.

Specified by:

append in interface HFile.Writer

Overrides:

append in class HFileWriterV2

Parameters:

key - Key to add. Cannot be empty nor null.

value - Value to add. Cannot be empty nor null.

tag - Tag t add. Cannot be empty or null.

Throws:

IOException

finishFileInfo

protected void finishFileInfo()
                       throws IOException

Description copied from class: AbstractHFileWriter

Add last bits of metadata to file info before it is written out.

Overrides:

finishFileInfo in class AbstractHFileWriter

Throws:

IOException

getMajorVersion

protected int getMajorVersion()

Overrides:

getMajorVersion in class HFileWriterV2

getMinorVersion

protected int getMinorVersion()

Overrides:

getMinorVersion in class HFileWriterV2

finishClose

protected void finishClose(FixedFileTrailer trailer)
                    throws IOException

Description copied from class: AbstractHFileWriter

Sets remaining trailer fields, writes the trailer to disk, and optionally closes the output stream.

Overrides:

finishClose in class AbstractHFileWriter

Throws:

IOException