org.apache.accumulo.core.file.blockfile.impl
Class CachableBlockFile.BlockRead

java.lang.Object
  java.io.InputStream
      java.io.FilterInputStream
          java.io.DataInputStream
              org.apache.accumulo.core.file.blockfile.impl.CachableBlockFile.BlockRead

All Implemented Interfaces:

Closeable, DataInput, ABlockReader

Enclosing class:

CachableBlockFile

public static class CachableBlockFile.BlockRead
extends DataInputStream
implements ABlockReader

Class provides functionality to read one block from the underlying BCFile Since We are caching blocks in the Reader class as bytearrays, this class will wrap a DataInputStream(ByteArrayStream(cachedBlock)).

Field Summary

Fields inherited from class java.io.FilterInputStream

in

Constructor Summary

CachableBlockFile.BlockRead(InputStream in, long size)

Method Summary

long	getRawSize() Size is the size of the bytearray that was read form the cache
DataInputStream	getStream() It is intended that the caller of this method will close the stream we also only intend that this be called once per BlockRead.

Methods inherited from class java.io.DataInputStream

read, read, readBoolean, readByte, readChar, readDouble, readFloat, readFully, readFully, readInt, readLine, readLong, readShort, readUnsignedByte, readUnsignedShort, readUTF, readUTF, skipBytes

Methods inherited from class java.io.FilterInputStream

available, close, mark, markSupported, read, reset, skip

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.accumulo.core.file.blockfile.ABlockReader

close

Methods inherited from interface java.io.DataInput

readBoolean, readByte, readChar, readDouble, readFloat, readFully, readFully, readInt, readLine, readLong, readShort, readUnsignedByte, readUnsignedShort, readUTF, skipBytes

Constructor Detail

CachableBlockFile.BlockRead

public CachableBlockFile.BlockRead(InputStream in,
                                   long size)

Method Detail

getRawSize

public long getRawSize()

Size is the size of the bytearray that was read form the cache

Specified by:

getRawSize in interface ABlockReader

getStream

public DataInputStream getStream()
                          throws IOException

It is intended that the caller of this method will close the stream we also only intend that this be called once per BlockRead. This method is provide for methods up stream that expect to receive a DataInputStream object.

Specified by:

getStream in interface ABlockReader

Throws:

IOException