类 org.apache.hadoop.hbase.io.FSDataInputStreamWrapper
的使用

使用FSDataInputStreamWrapper的程序包

程序包	说明
org.apache.hadoop.hbase.coprocessor	Table of Contents Overview Coprocessor RegionObserver Endpoint Coprocessor loading Overview Coprocessors are code that runs in-process on each region server.
org.apache.hadoop.hbase.io
org.apache.hadoop.hbase.io.hfile	Provides implementations of HFile and HFile BlockCache.
org.apache.hadoop.hbase.regionserver

org.apache.hadoop.hbase.coprocessor中FSDataInputStreamWrapper的使用

参数类型为FSDataInputStreamWrapper的org.apache.hadoop.hbase.coprocessor中的方法

限定符和类型	方法和说明
StoreFile.Reader	RegionObserver.postStoreFileReaderOpen(ObserverContext<RegionCoprocessorEnvironment> ctx, org.apache.hadoop.fs.FileSystem fs, org.apache.hadoop.fs.Path p, FSDataInputStreamWrapper in, long size, CacheConfig cacheConf, Reference r, StoreFile.Reader reader) Called after the creation of Reader for a store file.
StoreFile.Reader	BaseRegionObserver.postStoreFileReaderOpen(ObserverContext<RegionCoprocessorEnvironment> ctx, org.apache.hadoop.fs.FileSystem fs, org.apache.hadoop.fs.Path p, FSDataInputStreamWrapper in, long size, CacheConfig cacheConf, Reference r, StoreFile.Reader reader)
StoreFile.Reader	RegionObserver.preStoreFileReaderOpen(ObserverContext<RegionCoprocessorEnvironment> ctx, org.apache.hadoop.fs.FileSystem fs, org.apache.hadoop.fs.Path p, FSDataInputStreamWrapper in, long size, CacheConfig cacheConf, Reference r, StoreFile.Reader reader) Called before creation of Reader for a store file.
StoreFile.Reader	BaseRegionObserver.preStoreFileReaderOpen(ObserverContext<RegionCoprocessorEnvironment> ctx, org.apache.hadoop.fs.FileSystem fs, org.apache.hadoop.fs.Path p, FSDataInputStreamWrapper in, long size, CacheConfig cacheConf, Reference r, StoreFile.Reader reader)

org.apache.hadoop.hbase.io中FSDataInputStreamWrapper的使用

参数类型为FSDataInputStreamWrapper的org.apache.hadoop.hbase.io中的构造器

构造器和说明
HalfStoreFileReader(org.apache.hadoop.fs.FileSystem fs, org.apache.hadoop.fs.Path p, FSDataInputStreamWrapper in, long size, CacheConfig cacheConf, Reference r, org.apache.hadoop.conf.Configuration conf) Creates a half file reader for a hfile referred to by an hfilelink.

org.apache.hadoop.hbase.io.hfile中FSDataInputStreamWrapper的使用

参数类型为FSDataInputStreamWrapper的org.apache.hadoop.hbase.io.hfile中的方法

限定符和类型	方法和说明
protected HFileContext	HFileReaderV3.createHFileContext(FSDataInputStreamWrapper fsdis, long fileSize, HFileSystem hfs, org.apache.hadoop.fs.Path path, FixedFileTrailer trailer)
protected HFileContext	HFileReaderV2.createHFileContext(FSDataInputStreamWrapper fsdis, long fileSize, HFileSystem hfs, org.apache.hadoop.fs.Path path, FixedFileTrailer trailer)
static HFile.Reader	HFile.createReader(org.apache.hadoop.fs.FileSystem fs, org.apache.hadoop.fs.Path path, FSDataInputStreamWrapper fsdis, long size, CacheConfig cacheConf, org.apache.hadoop.conf.Configuration conf) The sockets and the file descriptors held by the method parameter FSDataInputStreamWrapper passed will be freed after its usage so caller needs to ensure that no other threads have access to the same passed reference.

参数类型为FSDataInputStreamWrapper的org.apache.hadoop.hbase.io.hfile中的构造器

构造器和说明
HFileReaderV2(org.apache.hadoop.fs.Path path, FixedFileTrailer trailer, FSDataInputStreamWrapper fsdis, long size, CacheConfig cacheConf, HFileSystem hfs, org.apache.hadoop.conf.Configuration conf) Opens a HFile.
HFileReaderV3(org.apache.hadoop.fs.Path path, FixedFileTrailer trailer, FSDataInputStreamWrapper fsdis, long size, CacheConfig cacheConf, HFileSystem hfs, org.apache.hadoop.conf.Configuration conf) Opens a HFile.

org.apache.hadoop.hbase.regionserver中FSDataInputStreamWrapper的使用

参数类型为FSDataInputStreamWrapper的org.apache.hadoop.hbase.regionserver中的方法

限定符和类型	方法和说明
StoreFile.Reader	RegionCoprocessorHost.postStoreFileReaderOpen(org.apache.hadoop.fs.FileSystem fs, org.apache.hadoop.fs.Path p, FSDataInputStreamWrapper in, long size, CacheConfig cacheConf, Reference r, StoreFile.Reader reader)
StoreFile.Reader	RegionCoprocessorHost.preStoreFileReaderOpen(org.apache.hadoop.fs.FileSystem fs, org.apache.hadoop.fs.Path p, FSDataInputStreamWrapper in, long size, CacheConfig cacheConf, Reference r)

参数类型为FSDataInputStreamWrapper的org.apache.hadoop.hbase.regionserver中的构造器

构造器和说明
StoreFile.Reader(org.apache.hadoop.fs.FileSystem fs, org.apache.hadoop.fs.Path path, FSDataInputStreamWrapper in, long size, CacheConfig cacheConf, org.apache.hadoop.conf.Configuration conf)