Package org.apache.flink.api.common.operators.util

Interface Summary

Interface	Description
UserCodeWrapper<T>	UDf operators can have either a class or an object containing the user code, this is the common interface to access them.

Class Summary

Class	Description
FieldList	Immutable ordered list of fields IDs.
FieldSet	Immutable unordered collection of fields IDs.
JoinHashMap<BT>
ListKeyGroupedIterator<E>	The KeyValueIterator returns a key and all values that belong to the key (share the same key).
TypeComparable<T>	Wrapper that is used to store elements for which we have a TypeComparator in a Hash Map.
UserCodeClassWrapper<T>	This holds a class containing user defined code.
UserCodeObjectWrapper<T>	This holds an actual object containing user defined code.