Package org.apache.flink.runtime.broadcast

Class Summary

Class	Description
BroadcastVariableKey	An identifier for a BroadcastVariableMaterialization based on the task's JobVertexID, broadcast variable name and iteration superstep.
BroadcastVariableManager	The BroadcastVariableManager is used to manage the materialization of broadcast variables.
BroadcastVariableMaterialization<T,C>	This class represents a single materialization of a broadcast variable and maintains a reference count for it.
DefaultBroadcastVariableInitializer<T>	The default BroadcastVariableInitializer implementation that initializes the broadcast variable into a list.

Exception Summary

Exception	Description
InitializationTypeConflictException	Indicates that a broadcast variable was initialized with a DefaultBroadcastVariableInitializer as a non-List type, and later accessed using RuntimeContext.getBroadcastVariable(String) which may only return lists.
MaterializationExpiredException	Indicates that the BroadcastVariableMaterialization has materialized the broadcast variable at some point but discarded it already.