Package org.apache.hudi.common.util

Interface Summary

Interface	Description
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.
SizeEstimator<T>	An interface to estimate the size of payload in memory.

Class Summary

Class	Description
ArchivedInstantReadSchemas	Avro schema for different archived instant read cases.
Base64CodecUtil	Utils for Base64 encoding and decoding.
BinaryUtil	Utils for Java byte array.
BufferedRandomAccessFile	Use a private buffer for the read/write/seek operations of the RandomAccessFile to reduce the number of disk operations.
CleanerUtils	Utils for clean action.
ClusteringUtils	Helper class to generate clustering plan from metadata.
CollectionUtils	Utils for Java Collection.
CommitUtils	Helper class to generate commit metadata.
CompactionUtils	Helper class to generate compaction plan from FileGroup/FileSlice abstraction.
ConfigUtils
CustomizedThreadFactory	A thread factory for creation of threads
DateTimeUtils	Utils for Hudi instant time.
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>	Utility that holds L value only.
Either.EitherRight<L,R>	Utility that holds R value only.
ExternalFilePathUtil	Utility methods for handling externally created files.
FileFormatUtils	Utils for file format used in Hudi.
FutureUtils	A utility class for future operation.
HoodieCommonKryoRegistrar	NOTE: PLEASE READ CAREFULLY BEFORE CHANGING This class is responsible for registering Hudi specific components that are often serialized by Kryo (for ex, during Spark's Shuffling operations) to make sure Kryo doesn't need to serialize their full class-names (for every object) which will quickly add up to considerable amount of overhead.
HoodieRecordSizeEstimator<T>	Size Estimator for Hoodie record payload.
HoodieRecordUtils	A utility class for HoodieRecord.
InternalSchemaCache	An internal cache implementation for managing different version of schemas.
JsonUtils	Utils for JSON serialization and deserialization.
MapUtils	Utils for Java Map.
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.
PartitionPathEncodeUtils	Utils to encode/decode the partition path.
RateLimiter	Thread-safe rate limiter implementation.
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.
SerializationUtils.AvroUtf8Serializer	NOTE: This Serializer could deserialize instance of Utf8 serialized by implicitly generated Kryo serializer (based on com.esotericsoftware.kryo.serializers.FieldSerializer
SpillableMapUtils	A utility class supports spillable map.
TablePathUtils	Utils for table path.
ThreadUtils	Utils for Java threading.
TypeUtils	Utils for Java type cast.

Annotation Types Summary

Annotation Type	Description
VisibleForTesting	Annotation designating a field or a method as visible for the testing purposes