| Package | Description | 
|---|---|
| org.apache.hadoop.hbase.io.hfile | Provides implementations of  HFileand HFileBlockCache. | 
| Modifier and Type | Class and Description | 
|---|---|
| private static class  | HFileBlock.AbstractFSReaderA common implementation of some methods of  HFileBlock.FSReaderand some
 tools for implementing HFile format version-specific block readers. | 
| (package private) static class  | HFileBlock.FSReaderImplReads version 2 blocks from the filesystem. | 
| Modifier and Type | Field and Description | 
|---|---|
| private HFileBlock.FSReader | HFileReaderV2. fsBlockReaderFilesystem-level block reader. | 
| Modifier and Type | Method and Description | 
|---|---|
| (package private) abstract HFileBlock.FSReader | AbstractHFileReader. getUncachedBlockReader()For testing | 
| (package private) HFileBlock.FSReader | HFileReaderV2. getUncachedBlockReader()For testing | 
| Modifier and Type | Method and Description | 
|---|---|
| (package private) HFileBlock | HFileBlock. unpack(HFileContext fileContext,
      HFileBlock.FSReader reader)Retrieves the decompressed/decrypted view of this block. | 
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