Package org.apache.flink.util

Interface Summary

Interface	Description
Collector<T>	Collects a record and forwards it.
IterableIterator<E>	An Iterator that is also Iterable (often by returning itself).
MutableObjectIterator<E>	A simple iterator interface.
Visitable<T extends Visitable<T>>	This interface marks types as visitable during a traversal.
Visitor<T extends Visitable<T>>	A visitor encapsulates functionality that is applied to each node in the process of a traversal of a tree or DAD.

Class Summary

Class	Description
AbstractID	A statistically unique identification number.
ClassUtils	Utility class which provides various methods for dynamic class loading.
ExceptionUtils
InstantiationUtil	Utility class to create instances from class objects and checking failure reasons.
InstantiationUtil.ClassLoaderObjectInputStream	A custom ObjectInputStream that can also load user-code using a user-code ClassLoader.
MavenForkNumberPrefixLayout	The logging layout used to prefix each log event with the Maven fork number.
NetUtils
NumberSequenceIterator	The NumberSequenceIterator is an iterator that returns a sequence of numbers (as Long)s.
ReflectionUtil
SerializedValue<T>	This class is used to transfer (via serialization) objects whose classes are not available in the system class loader.
SimpleStringUtils	Utility class for efficient string operations on strings.
SimpleStringUtils.WhitespaceTokenizer	A tokenizer for string values that uses whitespace characters as token delimiters.
SplittableIterator<T>
StringUtils	Utility class to convert objects into strings in vice-versa.
XORShiftRandom	Implement a random number generator based on the XORShift algorithm discovered by George Marsaglia.

Enum Summary

Enum	Description
OperatingSystem	An enumeration indicating the operating system that the engine runs on.

Exception Summary

Exception	Description
TraversableOnceException	An exception, indicating that an Iterable can only be traversed once, but has been attempted to traverse an additional time.