Package org.apache.hudi.common.util

Interface Summary

Interface	Description
ClosableIterator<R>	An iterator that give a chance to release resources.
Functions	An interface contains a set of functions.
Functions.Function0<R>	A function which has not any parameter.
Functions.Function1<T1,R>	A function which contains only one parameter.
Functions.Function2<T1,T2,R>	A function which contains two parameters.
Functions.Function3<T1,T2,T3,R>	A function which contains three parameters.
RetryHelper.CheckedFunction<T>
SizeEstimator<T>	An interface to estimate the size of payload in memory.

Class Summary

Class	Description
AvroOrcUtils	Methods including addToVector, addUnionValue, createOrcSchema are originally from https://github.com/streamsets/datacollector.
Base64CodecUtil
BaseFileUtils
BinaryUtil
BufferedRandomAccessFile	Use a private buffer for the read/write/seek operations of the RandomAccessFile to reduce the number of disk operations.
CleanerUtils
ClusteringUtils	Helper class to generate clustering plan from metadata.
CollectionUtils
CommitUtils	Helper class to generate commit metadata.
CompactionUtils	Helper class to generate compaction plan from FileGroup/FileSlice abstraction.
CustomizedThreadFactory	A thread factory for creation of threads
DateTimeUtils
DefaultSizeEstimator<T>	Default implementation of size-estimator that uses Twitter's ObjectSizeCalculator.
Either<L,R>	Utility that could hold exclusively only either of (hence the name): Non-null value of type L Non-null value of type R
Either.EitherLeft<L,R>
Either.EitherRight<L,R>
FileIOUtils	Bunch of utility methods for working with files and byte streams.
FutureUtils	A utility class for future operation.
HoodieRecordSizeEstimator<T extends HoodieRecordPayload>	Size Estimator for Hoodie record payload.
HoodieTimer	Timing utility to help keep track of execution times of code blocks.
InternalSchemaCache
JsonUtils
MapUtils
MarkerUtils	A utility class for marker related operations.
NetworkUtils	A utility class for network.
NumericUtils	A utility class for numeric.
ObjectSizeCalculator	Contains utility methods for calculating the memory usage of objects.
Option<T>	Provides functionality same as java.util.Optional but is also made Serializable.
OrcReaderIterator<T>	This class wraps a ORC reader and provides an iterator based api to read from an ORC file.
OrcUtils	Utility functions for ORC files.
ParquetReaderIterator<T>	This class wraps a parquet reader and provides an iterator based api to read from a parquet file.
ParquetUtils	Utility functions involving with parquet.
PartitionPathEncodeUtils	Utils to encode/decode the partition path.
RateLimiter
ReflectionUtils	A utility class for reflection.
RetryHelper<T>
RocksDBSchemaHelper	Helper class to generate Key and column names for rocksdb based view For RocksDB, 3 colFamilies are used for storing file-system view for each table.
SerializationUtils	SerializationUtils class internally uses Kryo serializer for serializing / deserializing objects.
SpillableMapUtils	A utility class supports spillable map.
StringUtils	Simple utility for operations on strings.
TablePathUtils
TypeUtils
ValidationUtils