| Package | Description | 
|---|---|
| org.apache.cassandra.db.commitlog | |
| org.apache.cassandra.hints | Hints subsystem consists of several components. | 
| org.apache.cassandra.io.util | 
| Modifier and Type | Class and Description | 
|---|---|
| class  | EncryptedFileSegmentInputStreamEach segment of an encrypted file may contain many encrypted chunks, and each chunk needs to be individually decrypted
 to reconstruct the full segment. | 
| Modifier and Type | Class and Description | 
|---|---|
| class  | ChecksummedDataInputA  RandomAccessReaderwrapper that calculates the CRC in place. | 
| class  | CompressedChecksummedDataInput | 
| class  | EncryptedChecksummedDataInput | 
| Modifier and Type | Class and Description | 
|---|---|
| class  | DataInputBufferInput stream around a single ByteBuffer. | 
| class  | FileSegmentInputStreamThis is the same as DataInputBuffer, i.e. | 
| class  | MemoryInputStream | 
| class  | NIODataInputStreamRough equivalent of BufferedInputStream and DataInputStream wrapping the input stream of a File or Socket
 Created to work around the fact that when BIS + DIS delegate to NIO for socket IO they will allocate large
 thread local direct byte buffers when a large array is used to read. | 
| class  | RandomAccessReader | 
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