Uses of Package
org.apache.flink.util

Packages that use org.apache.flink.util

Package	Description
org.apache.flink.api.common
org.apache.flink.api.common.accumulators
org.apache.flink.api.common.functions
org.apache.flink.api.common.functions.util
org.apache.flink.api.common.operators
org.apache.flink.api.common.operators.base
org.apache.flink.core.fs
org.apache.flink.util

Classes in org.apache.flink.util used by org.apache.flink.api.common

Class and Description
AbstractID A statistically unique identification number.
OptionalFailure Wrapper around an object representing either a success (with a given value) or a failure cause.
Visitable This interface marks types as visitable during a traversal.
Visitor A visitor encapsulates functionality that is applied to each node in the process of a traversal of a tree or DAG.

Classes in org.apache.flink.util used by org.apache.flink.api.common.accumulators

Class and Description
OptionalFailure Wrapper around an object representing either a success (with a given value) or a failure cause.
SerializedValue This class is used to transfer (via serialization) objects whose classes are not available in the system class loader.

Classes in org.apache.flink.util used by org.apache.flink.api.common.functions

Class and Description
Collector Collects a record and forwards it.

Classes in org.apache.flink.util used by org.apache.flink.api.common.functions.util

Class and Description
Collector Collects a record and forwards it.

Classes in org.apache.flink.util used by org.apache.flink.api.common.operators

Class and Description
Visitable This interface marks types as visitable during a traversal.
Visitor A visitor encapsulates functionality that is applied to each node in the process of a traversal of a tree or DAG.

Classes in org.apache.flink.util used by org.apache.flink.api.common.operators.base

Class and Description
Collector Collects a record and forwards it.
Visitable This interface marks types as visitable during a traversal.
Visitor A visitor encapsulates functionality that is applied to each node in the process of a traversal of a tree or DAG.

Classes in org.apache.flink.util used by org.apache.flink.core.fs

Class and Description
AbstractCloseableRegistry This is the abstract base class for registries that allow to register instances of Closeable, which are all closed if this registry is closed.
WrappingProxy Interface for objects that wrap another object and proxy (possibly a subset) of the methods of that object.

Classes in org.apache.flink.util used by org.apache.flink.util

Class and Description
AbstractID A statistically unique identification number.
CloseableIterable This interface represents an iterable that is also closeable.
CloseableIterator This interface represents an Iterator that is also AutoCloseable.
FlinkException Base class of all Flink-specific checked exceptions.
FlinkRuntimeException Base class of all Flink-specific unchecked exceptions.
InstantiationUtil.ClassLoaderObjectInputStream A custom ObjectInputStream that can load classes using a specific ClassLoader.
LinkedOptionalMap A LinkedOptionalMap is an order preserving map (like LinkedHashMap) where keys have a unique string name, but are optionally present, and the values are optional.
LinkedOptionalMap.ConsumerWithException A Consumer that throws exceptions.
LinkedOptionalMap.KeyValue Key-value pairs stored by the underlying map.
LinkedOptionalMap.MergeResult The result of merging two LinkedOptionalMaps using LinkedOptionalMap.mergeRightIntoLeft(LinkedOptionalMap, LinkedOptionalMap).
LongValueSequenceIterator The LongValueSequenceIterator is an iterator that returns a sequence of numbers (as LongValue)s.
MemoryArchitecture The memory architecture (32 bit / 64 bit) of the current process.
NetUtils.SocketFactory A factory for a local socket from port number.
NumberSequenceIterator The NumberSequenceIterator is an iterator that returns a sequence of numbers (as Long)s.
OperatingSystem An enumeration indicating the operating system that the JVM runs on.
OptionalConsumer Utility class which allows to run code depending on whether the optional has a value or is empty.
OptionalFailure Wrapper around an object representing either a success (with a given value) or a failure cause.
ReflectionUtil.FullTypeInfo Container for the full type information of a type.
ResourceGuard.Lease A lease is issued by the ResourceGuard as result of calls to ResourceGuard.acquireResource().
SerializedValue This class is used to transfer (via serialization) objects whose classes are not available in the system class loader.
SplittableIterator Abstract base class for iterators that can split themselves into multiple disjoint iterators.
StateMigrationException Base class for state migration related exceptions.
TernaryBoolean A ternary boolean, which can have the values 'true', 'false', or 'undefined'.
Visitable This interface marks types as visitable during a traversal.
Visitor A visitor encapsulates functionality that is applied to each node in the process of a traversal of a tree or DAG.
WrappingProxy Interface for objects that wrap another object and proxy (possibly a subset) of the methods of that object.