Uses of Class
org.apache.hadoop.hbase.io.hfile.HFileBlock

Packages that use HFileBlock

Package	Description
org.apache.hadoop.hbase.io.hfile	Provides implementations of HFile and HFile BlockCache.
org.apache.hadoop.hbase.io.hfile.bucket	Provides BucketCache, an implementation of BlockCache.

Uses of HFileBlock in org.apache.hadoop.hbase.io.hfile

Subclasses of HFileBlock in org.apache.hadoop.hbase.io.hfile

Modifier and Type	Class	Description
class	ExclusiveMemHFileBlock	The ByteBuffAllocator won't allocate pooled heap ByteBuff now; at the same time, if allocate an off-heap ByteBuff from allocator, then it must be a pooled one.
class	SharedMemHFileBlock	The ByteBuffAllocator won't allocate pooled heap ByteBuff now; at the same time, if allocate an off-heap ByteBuff from allocator, then it must be a pooled one.

Fields in org.apache.hadoop.hbase.io.hfile declared as HFileBlock

Modifier and Type	Field	Description
protected HFileBlock	HFileReaderImpl.HFileScannerImpl.curBlock
private final HFileBlock	BlockWithScanInfo.hFileBlock

Fields in org.apache.hadoop.hbase.io.hfile with type parameters of type HFileBlock

Modifier and Type	Field	Description
private List<HFileBlock>	HFileInfo.loadOnOpenBlocks	Blocks read from the load-on-open section, excluding data root index, meta index, and file info.
protected final ArrayList<HFileBlock>	HFileReaderImpl.HFileScannerImpl.prevBlocks

Methods in org.apache.hadoop.hbase.io.hfile that return HFileBlock

Modifier and Type	Method	Description
HFileBlock	HFileBlockBuilder.build()
(package private) static HFileBlock	HFileBlock.createFromBuff(ByteBuff buf, boolean usesHBaseChecksum, long offset, int nextBlockOnDiskSize, HFileContext fileContext, ByteBuffAllocator allocator)	Creates a block from an existing buffer starting with a header.
HFileBlock	MemcachedBlockCache.HFileBlockTranscoder.decode(net.spy.memcached.CachedData d)
(package private) static HFileBlock	HFileBlock.deepCloneOnHeap(HFileBlock blk)
HFileBlock	HFileBlock.BlockDeserializer.deserialize(ByteBuff buf, ByteBuffAllocator alloc)
static HFileBlock	BlockCacheUtil.getBlockForCaching(CacheConfig cacheConf, HFileBlock block)	Similarly to HFileBlock.Writer.getBlockForCaching(), creates a HFileBlock instance without checksum for caching.
(package private) HFileBlock	HFileBlock.Writer.getBlockForCaching(CacheConfig cacheConf)	Creates a new HFileBlock.
private HFileBlock	CompoundBloomFilter.getBloomBlock(int block)
private HFileBlock	HFileReaderImpl.getCachedBlock(BlockCacheKey cacheKey, boolean cacheBlock, boolean useLock, boolean updateCacheMetrics, BlockType expectedBlockType, DataBlockEncoding expectedDataBlockEncoding)	Retrieve block from cache.
HFileBlock	HFileReaderImpl.HFileScannerImpl.getCurBlock()
HFileBlock	BlockWithScanInfo.getHFileBlock()
HFileBlock	HFile.Reader.getMetaBlock(String metaBlockName, boolean cacheBlock)
HFileBlock	HFileReaderImpl.getMetaBlock(String metaBlockName, boolean cacheBlock)
HFileBlock	HFileBlock.BlockIterator.nextBlock()	Get the next block, or null if there are no more blocks to iterate.
HFileBlock	HFileBlock.BlockIterator.nextBlockWithBlockType(BlockType blockType)	Similar to HFileBlock.BlockIterator.nextBlock() but checks block type, throws an exception if incorrect, and returns the HFile block
HFileBlock	HFile.CachingBlockReader.readBlock(long offset, long onDiskBlockSize, boolean cacheBlock, boolean pread, boolean isCompaction, boolean updateCacheMetrics, BlockType expectedBlockType, DataBlockEncoding expectedDataBlockEncoding)	Read in a file block.
HFileBlock	HFile.CachingBlockReader.readBlock(long offset, long onDiskBlockSize, boolean cacheBlock, boolean pread, boolean isCompaction, boolean updateCacheMetrics, BlockType expectedBlockType, DataBlockEncoding expectedDataBlockEncoding, boolean cacheOnly)
HFileBlock	HFileReaderImpl.readBlock(long dataBlockOffset, long onDiskBlockSize, boolean cacheBlock, boolean pread, boolean isCompaction, boolean updateCacheMetrics, BlockType expectedBlockType, DataBlockEncoding expectedDataBlockEncoding)
HFileBlock	HFileReaderImpl.readBlock(long dataBlockOffset, long onDiskBlockSize, boolean cacheBlock, boolean pread, boolean isCompaction, boolean updateCacheMetrics, BlockType expectedBlockType, DataBlockEncoding expectedDataBlockEncoding, boolean cacheOnly)
HFileBlock	HFileBlock.FSReader.readBlockData(long offset, long onDiskSize, boolean pread, boolean updateMetrics, boolean intoHeap)	Reads the block at the given offset in the file with the given on-disk size and uncompressed size.
HFileBlock	HFileBlock.FSReaderImpl.readBlockData(long offset, long onDiskSizeWithHeaderL, boolean pread, boolean updateMetrics, boolean intoHeap)	Reads a version 2 block (version 1 blocks not supported and not expected).
protected HFileBlock	HFileBlock.FSReaderImpl.readBlockDataInternal(org.apache.hadoop.fs.FSDataInputStream is, long offset, long onDiskSizeWithHeaderL, boolean pread, boolean verifyChecksum, boolean updateMetrics, boolean intoHeap)	Reads a version 2 block.
protected HFileBlock	HFileReaderImpl.HFileScannerImpl.readNextDataBlock()	Scans blocks in the "scanned" section of the HFile until the next data block is found.
HFileBlock	HFileBlock.retain()
HFileBlock	HFileBlockIndex.BlockIndexReader.seekToDataBlock(ExtendedCell key, HFileBlock currentBlock, boolean cacheBlocks, boolean pread, boolean isCompaction, DataBlockEncoding expectedDataBlockEncoding, HFile.CachingBlockReader cachingBlockReader)	Return the data block which contains this key.
private static HFileBlock	HFileBlock.shallowClone(HFileBlock blk, ByteBuff newBuf)
HFileBlock	HFileBlock.touch()	Calling this method in strategic locations where HFileBlocks are referenced may help diagnose potential buffer leaks.
HFileBlock	HFileBlock.touch(Object hint)
(package private) HFileBlock	HFileBlock.unpack(HFileContext fileContext, HFileBlock.FSReader reader)	Retrieves the decompressed/decrypted view of this block.

Methods in org.apache.hadoop.hbase.io.hfile that return types with arguments of type HFileBlock

Modifier and Type	Method	Description
List<HFileBlock>	HFileInfo.getLoadOnOpenBlocks()

Methods in org.apache.hadoop.hbase.io.hfile with parameters of type HFileBlock

Modifier and Type	Method	Description
default Optional<Boolean>	BlockCache.blockFitsIntoTheCache(HFileBlock block)	Checks whether there's enough space left in the cache to accommodate the passed block.
Optional<Boolean>	CombinedBlockCache.blockFitsIntoTheCache(HFileBlock block)
private static HFileBlockBuilder	HFileBlock.createBuilder(HFileBlock blk, ByteBuff newBuff)	Creates a new HFileBlockBuilder from the existing block and a new ByteBuff.
(package private) static HFileBlock	HFileBlock.deepCloneOnHeap(HFileBlock blk)
net.spy.memcached.CachedData	MemcachedBlockCache.HFileBlockTranscoder.encode(HFileBlock block)
static HFileBlock	BlockCacheUtil.getBlockForCaching(CacheConfig cacheConf, HFileBlock block)	Similarly to HFileBlock.Writer.getBlockForCaching(), creates a HFileBlock instance without checksum for caching.
private ByteBuff	HFileReaderImpl.EncodedScanner.getEncodedBuffer(HFileBlock newBlock)
protected ExtendedCell	HFileReaderImpl.EncodedScanner.getFirstKeyCellInBlock(HFileBlock curBlock)
protected ExtendedCell	HFileReaderImpl.HFileScannerImpl.getFirstKeyCellInBlock(HFileBlock curBlock)
private void	NoOpIndexBlockEncoder.NoOpEncodedSeeker.init(HFileBlock blk, int numEntries)
void	HFileIndexBlockEncoder.EncodedSeeker.initRootIndex(HFileBlock blk, int numEntries, CellComparator comparator, int treeLevel)
void	NoOpIndexBlockEncoder.NoOpEncodedSeeker.initRootIndex(HFileBlock blk, int numEntries, CellComparator comparator, int treeLevel)
protected int	HFileReaderImpl.EncodedScanner.loadBlockAndSeekToKey(HFileBlock seekToBlock, ExtendedCell nextIndexedKey, boolean rewind, ExtendedCell key, boolean seekBefore)
protected int	HFileReaderImpl.HFileScannerImpl.loadBlockAndSeekToKey(HFileBlock seekToBlock, ExtendedCell nextIndexedKey, boolean rewind, ExtendedCell key, boolean seekBefore)
abstract BlockWithScanInfo	HFileBlockIndex.BlockIndexReader.loadDataBlockWithScanInfo(ExtendedCell key, HFileBlock currentBlock, boolean cacheBlocks, boolean pread, boolean isCompaction, DataBlockEncoding expectedDataBlockEncoding, HFile.CachingBlockReader cachingBlockReader)	Return the BlockWithScanInfo, a data structure which contains the Data HFileBlock with other scan info such as the key that starts the next HFileBlock.
BlockWithScanInfo	HFileBlockIndex.ByteArrayKeyBlockIndexReader.loadDataBlockWithScanInfo(ExtendedCell key, HFileBlock currentBlock, boolean cacheBlocks, boolean pread, boolean isCompaction, DataBlockEncoding expectedDataBlockEncoding, HFile.CachingBlockReader cachingBlockReader)
BlockWithScanInfo	HFileBlockIndex.CellBasedKeyBlockIndexReader.loadDataBlockWithScanInfo(ExtendedCell key, HFileBlock currentBlock, boolean cacheBlocks, boolean pread, boolean isCompaction, DataBlockEncoding expectedDataBlockEncoding, HFile.CachingBlockReader cachingBlockReader)
BlockWithScanInfo	HFileBlockIndex.CellBasedKeyBlockIndexReaderV2.loadDataBlockWithScanInfo(ExtendedCell key, HFileBlock currentBlock, boolean cacheBlocks, boolean pread, boolean isCompaction, DataBlockEncoding expectedDataBlockEncoding, HFile.CachingBlockReader cachingBlockReader)
BlockWithScanInfo	HFileIndexBlockEncoder.EncodedSeeker.loadDataBlockWithScanInfo(ExtendedCell key, HFileBlock currentBlock, boolean cacheBlocks, boolean pread, boolean isCompaction, DataBlockEncoding expectedDataBlockEncoding, HFile.CachingBlockReader cachingBlockReader)
BlockWithScanInfo	NoOpIndexBlockEncoder.NoOpEncodedSeeker.loadDataBlockWithScanInfo(ExtendedCell key, HFileBlock currentBlock, boolean cacheBlocks, boolean pread, boolean isCompaction, DataBlockEncoding expectedDataBlockEncoding, HFile.CachingBlockReader cachingBlockReader)
void	HFileBlockIndex.BlockIndexReader.readMultiLevelIndexRoot(HFileBlock blk, int numEntries)	Read the root-level metadata of a multi-level block index.
void	HFileBlockIndex.CellBasedKeyBlockIndexReaderV2.readMultiLevelIndexRoot(HFileBlock blk, int numEntries)
DataInputStream	HFileBlockIndex.BlockIndexReader.readRootIndex(HFileBlock blk, int numEntries)	Read in the root-level index from the given input stream.
private DataInputStream	NoOpIndexBlockEncoder.NoOpEncodedSeeker.readRootIndex(HFileBlock blk, int numEntries)
protected void	HFileReaderImpl.HFileScannerImpl.releaseIfNotCurBlock(HFileBlock block)	The curBlock will be released by shipping or close method, so only need to consider releasing the block, which was read from HFile before and not referenced by curBlock.
HFileBlock	HFileBlockIndex.BlockIndexReader.seekToDataBlock(ExtendedCell key, HFileBlock currentBlock, boolean cacheBlocks, boolean pread, boolean isCompaction, DataBlockEncoding expectedDataBlockEncoding, HFile.CachingBlockReader cachingBlockReader)	Return the data block which contains this key.
private static HFileBlock	HFileBlock.shallowClone(HFileBlock blk, ByteBuff newBuf)
(package private) void	HFileReaderImpl.HFileScannerImpl.updateCurrBlockRef(HFileBlock block)
protected void	HFileReaderImpl.EncodedScanner.updateCurrentBlock(HFileBlock newBlock)	Updates the current block to be the given HFileBlock.
protected void	HFileReaderImpl.HFileScannerImpl.updateCurrentBlock(HFileBlock newBlock)	Updates the current block to be the given HFileBlock.
private void	HFileReaderImpl.validateBlockType(HFileBlock block, BlockType expectedBlockType)	Compares the actual type of a block retrieved from cache or disk with its expected type and throws an exception in case of a mismatch.

Constructors in org.apache.hadoop.hbase.io.hfile with parameters of type HFileBlock

Modifier	Constructor	Description
	BlockWithScanInfo(HFileBlock hFileBlock, ExtendedCell nextIndexedKey)

Uses of HFileBlock in org.apache.hadoop.hbase.io.hfile.bucket

Methods in org.apache.hadoop.hbase.io.hfile.bucket with parameters of type HFileBlock

Modifier and Type	Method	Description
Optional<Boolean>	BucketCache.blockFitsIntoTheCache(HFileBlock block)