Package org.apache.hudi.io.hfile

Interface Summary

Interface	Description
HFileReader	HFile reader that supports seeks.
HFileWriter	The interface for HFile writer to implement.

Class Summary

Class	Description
BlockIndexEntry	Represents the index entry of a data block in the Data Index stored in the HFileBlockType.ROOT_INDEX block.
CachingHFileReaderImpl	HFile reader implementation with integrated caching functionality.
DataSize	Sizes of different primitive data structures used by HFile.
HFileBlock	Represents a block in a HFile.
HFileBlockCache	Least Frequently Used (LFU) cache for HFile blocks to improve read performance by avoiding repeated block reads.
HFileBlockCache.BlockCacheKey	Cache key for identifying blocks uniquely.
HFileBlockReader	A reader to read one or more HFile blocks based on the start and end offsets.
HFileContext	The context of HFile that contains information of the blocks.
HFileContext.Builder
HFileCursor	Stores the current position and KeyValue at the position in the HFile.
HFileDataBlock	Represents a HFileBlockType.DATA block.
HFileFileInfoBlock	Represents a HFileBlockType.FILE_INFO block.
HFileIndexBlock
HFileInfo	Represents the HFile info read from HFileBlockType.FILE_INFO block.
HFileIntermediateIndexBlock	Represents a HFileBlockType.INTERMEDIATE_INDEX block, as part of a multi-level block index.
HFileLeafIndexBlock	Represents a HFileBlockType.LEAF_INDEX block, as part of a multi-level block index.
HFileMetaBlock	Represents a HFileBlockType.META block.
HFileMetaIndexBlock
HFileReaderImpl	Base implementation of HFileReader without caching.
HFileRootIndexBlock	Represents a HFileBlockType.ROOT_INDEX block.
HFileTrailer	Represents a HFile trailer, which is serialized and deserialized using HFileProtos.TrailerProto with Protobuf.
HFileUtils	Util methods for reading and writing HFile.
HFileWriterImpl	Pure Java implementation of HFile writer (HFile v3 format) for Hudi.
Key	Represents the key part only.
KeyValue	Represents a key-value pair in the data block.
KeyValueEntry	This is data structure used to store the data before written into the file.
UTF8StringKey	Represent a UTF8 String key only, with no length information encoded.

Enum Summary

Enum	Description
ChecksumType	Type of checksum used to validate the integrity of data block.
HFileBlockType	Represents the HFile block type.
HFileBlockType.BlockCategory