Package org.apache.accumulo.core.file.blockfile.impl

Class CachableBlockFile.CachedBlockRead

java.lang.Object

java.io.InputStream

java.io.FilterInputStream

java.io.DataInputStream

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

org.apache.accumulo.core.file.blockfile.impl.CachableBlockFile.CachedBlockRead

All Implemented Interfaces:

Closeable, DataInput, AutoCloseable, ABlockReader

Enclosing class:

CachableBlockFile

public static class CachableBlockFile.CachedBlockRead
extends CachableBlockFile.BlockRead

Field Summary

Fields inherited from class java.io.FilterInputStream

in

Constructor Summary

Constructors

Constructor	Description
CachedBlockRead(CacheEntry cb, byte[] buf)

Method Summary

Modifier and Type	Method	Description
byte[]	getBuffer()	The byte array returned by this method is only for read optimizations, it should not be modified.
<T> T	getIndex(Class<T> clazz)
int	getPosition()	Get the file position.
boolean	isIndexable()	An indexable block supports seeking, getting a position, and associating an arbitrary index with the block
void	seek(int position)

Methods inherited from class org.apache.accumulo.core.file.blockfile.impl.CachableBlockFile.BlockRead

getStream

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

CachedBlockRead

public CachedBlockRead(CacheEntry cb,
                       byte[] buf)

Method Detail

seek

public void seek(int position)

Specified by:

seek in interface ABlockReader

Overrides:

seek in class CachableBlockFile.BlockRead

getPosition

public int getPosition()

Description copied from interface: ABlockReader

Get the file position.

Specified by:

getPosition in interface ABlockReader

Overrides:

getPosition in class CachableBlockFile.BlockRead

Returns:

the file position.

isIndexable

public boolean isIndexable()

Description copied from interface: ABlockReader

An indexable block supports seeking, getting a position, and associating an arbitrary index with the block

Specified by:

isIndexable in interface ABlockReader

Overrides:

isIndexable in class CachableBlockFile.BlockRead

Returns:

true, if the block is indexable; otherwise false.

getBuffer

public byte[] getBuffer()

Description copied from class: CachableBlockFile.BlockRead

The byte array returned by this method is only for read optimizations, it should not be modified.

Specified by:

getBuffer in interface ABlockReader

Overrides:

getBuffer in class CachableBlockFile.BlockRead

getIndex

public <T> T getIndex(Class<T> clazz)

Specified by:

getIndex in interface ABlockReader

Overrides:

getIndex in class CachableBlockFile.BlockRead