# Package cascading.tuple.collect

- Interface Summary
  Interface | Description
  --- | ---
  Spillable |
  Spillable.SpillListener |
  Spillable.SpillStrategy |
  TupleCollectionFactory<Config> | Interface TupleCollectionFactory allows developers to plugin alternative implementations of a "tuple collection" used to back in memory "join" and "co-group" operations.
  TupleMapFactory<Config> | Interface TupleMapFactory allows developers to plugin alternative implementations of a "tuple map" used to back in memory "join" and "co-group" operations.

- Class Summary
  Class | Description
  --- | ---
  SpillableProps | Class SpillableProps is a fluent interface for building properties to be passed to a `FlowConnector` before creating new `Flow` instances.
  SpillableTupleList | Class SpillableTupleList is a simple durable Collection that can spill its contents to disk when the `threshold` is met.
  SpillableTupleMap | SpillableTupleMap is a HashMap that will allow for multiple values per key, and if the number of values for a given key reach a specific threshold, they will be spilled to disk using a `SpillableTupleList` instance.

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