net.lecousin.framework.collections

Interface AsyncCollection<T>

Type Parameters:

T - type of elements

All Known Implementing Classes:

AsyncCollection.Aggregator, AsyncCollection.Keep, AsyncCollection.Listen

public interface AsyncCollection<T>

Collection where elements come asynchronously. While new elements come, the method newElements is called, then the method done must be called when no more elements will come.

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static class	AsyncCollection.Aggregator<T> Aggregates several AsyncCollection into a single one: each time new elements come, the newElements method is called into the main collection, then the done method is called on the main collection only after the done method has been called nbSubCollection times.
static class	AsyncCollection.Keep<T> Implementation that keeps the elements in a list.
static class	AsyncCollection.Listen<T> Simple implementation with a listener on both operations: newElements and done.
static interface	AsyncCollection.OneByOne<T> AsyncCollection but where elements are expected to come only one by one instead of by bunch.

Method Summary

Modifier and Type	Method and Description
void	done() Called when no more elements will come, and no error was encountered.
void	error(Exception error) Called if an error occured before all elements have been retrieved.
boolean	hasError() Return true if the method error has been called.
boolean	isDone() Return true if the method done has been called already.
void	newElements(Collection<T> elements) Called when new elements are ready.

Method Detail

newElements

void newElements(Collection<T> elements)

Called when new elements are ready.

done

void done()

Called when no more elements will come, and no error was encountered.

isDone

boolean isDone()

Return true if the method done has been called already.

error

void error(Exception error)

Called if an error occured before all elements have been retrieved.

hasError

boolean hasError()

Return true if the method error has been called.