org.apache.hadoop.hbase.io.hfile

Class UncompressedBlockSizePredicator

java.lang.Object

org.apache.hadoop.hbase.io.hfile.UncompressedBlockSizePredicator

All Implemented Interfaces:

BlockCompressedSizePredicator

@InterfaceAudience.Private
public class UncompressedBlockSizePredicator
extends Object
implements BlockCompressedSizePredicator

This BlockCompressedSizePredicator implementation doesn't actually performs any predicate and simply returns true on shouldFinishBlock. This is the default implementation if hbase.block.compressed.size.predicator property is not defined.

Field Summary

Fields inherited from interface org.apache.hadoop.hbase.io.hfile.BlockCompressedSizePredicator

BLOCK_COMPRESSED_SIZE_PREDICATOR, MAX_BLOCK_SIZE_UNCOMPRESSED

Constructor Summary

Constructors

Constructor and Description
UncompressedBlockSizePredicator()

Method Summary

Modifier and Type	Method and Description
boolean	shouldFinishBlock(int uncompressed) Dummy implementation that always returns true.
void	updateLatestBlockSizes(HFileContext context, int uncompressed, int compressed) Empty implementation.

Methods inherited from class java.lang.Object

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

Constructor Detail

UncompressedBlockSizePredicator

public UncompressedBlockSizePredicator()

Method Detail

updateLatestBlockSizes

public void updateLatestBlockSizes(HFileContext context,
                                   int uncompressed,
                                   int compressed)

Empty implementation. Does nothing.

Specified by:

updateLatestBlockSizes in interface BlockCompressedSizePredicator

Parameters:

uncompressed - the uncompressed size of last block written.

compressed - the compressed size of last block written.

context - the HFileContext containg the configured max block size.

shouldFinishBlock

public boolean shouldFinishBlock(int uncompressed)

Dummy implementation that always returns true. This means, we will be only considering the block uncompressed size for deciding when to finish a block.

Specified by:

shouldFinishBlock in interface BlockCompressedSizePredicator

Parameters:

uncompressed - true if the block should be finished.