Package org.apache.flink.runtime.util

Interface Summary

Interface	Description
MemoryBlockIterator	The memory block iterator is an iterator that always buffers a block of elements in memory.
ResettableIterator<E>	The resettable iterator is a specialization of the iterator, allowing to reset the iterator and re-retrieve elements.
ResettableMutableObjectIterator<E>	The resettable iterator is a specialization of the iterator, allowing to reset the iterator and re-retrieve elements.

Class Summary

Class	Description
AtomicDisposableReferenceCounter	Atomic reference counter, which enters a "disposed" state after the reference count reaches 0.
BufferPoolConnector
EmptyIterator<E>	An empty iterator that never returns anything.
EmptyMutableObjectIterator<E>	An empty mutable object iterator that never returns anything.
EnumUtils	Auxiliary class to (de)serialize enumeration values.
EnvironmentInformation	Utility class that gives access to the execution environment of the JVM, like the executing user, startup options, or the JVM version.
EnvironmentInformation.RevisionInformation
ExecutorThreadFactory
FileUtils	This is a utility class to deal with temporary files.
IntArrayList	Minimal implementation of an array-backed list of ints
IOUtils	An utility class for I/O related functionality.
JarFileCreator	This is an auxiliary program which creates a jar file from a set of classes.
KeyGroupedIterator<E>	The KeyValueIterator returns a key and all values that belong to the key (share the same key).
KeyGroupedIteratorImmutable<E>	The KeyValueIterator returns a key and all values that belong to the key (share the same key).
KeyGroupedMutableObjectIterator<E>	The KeyValueIterator returns a key and all values that belong to the key (share the same key).
LongArrayList	Minimal implementation of an array-backed list of longs
MathUtils	Collection of simple mathematical routines.
MutableToRegularIteratorWrapper<T>	This class wraps a MutableObjectIterator into a regular Iterator.
RegularToMutableObjectIterator<T>
SerializableArrayList<E extends IOReadableWritable>	This class extends a standard ArrayList by implementing the IOReadableWritable interface.
SerializableHashMap<K extends IOReadableWritable,V extends IOReadableWritable>	This class extends a standard HashMap by implementing the IOReadableWritable interface.
SerializableHashSet<T extends IOReadableWritable>	This class extends a standard HashSet by implementing the IOReadableWritable interface.
SingleElementIterator<E>	An Iterator that contains only a single element.
UnmodifiableIterator<T>	An auxiliary implementation of an iterator which protects the underlying collection from being modified.