You can have the provider pushing events in a queue and one or more consumers asynchronously polling from the queue.Java Collection Framework (JCF) is a unified name for the group of types and algorithm that are developed to store elements in them and perform manuplation on the group of objects.Īs a Software Engineers we gonna use Collecitons all the times to perform operations with the group of objects for example Product list in our web application. Where the processors process the events asynchronously. The best suited example is an event driven architecture. You can use queues for storing the elements before processing. Hence the PriorityQueue difference from the concept of FIFO. With these queues you can pass your own comparator or let the queue return objects in their natural order. Java Queue implementations and implementations of its child interfaces provide convenience methods. However, in Java the Queue implementations differ from the concept of FIFO for good. Also, considering it’s tube like structure the element which was inserted first will be first to come out. In other words, with queues you can insert an element from one end and remove from the other. In general, Queues are First In First Out (FIFO). Queue is a type of Data Structure, that resembles a tube with two ends. Otherwise, it populates and returns a new array of the same type. Moreover, It returns the same array if the collection elements fit into the given array. T toArray(T a): Converts the collections to an array of type of given array.Object toArray(): Converts the collection to an array.int size(): Returns the size of the collection.boolean retainAll(Collection c): Removes everything except the elements of given collection.boolean removeAll(Collection c): Removes all the elements.boolean remove(Object o): Removes an element which is equals to the given element.Which is used to iterate through the collection. Iterator iterator(): Returns an instance of Iterator. ![]() boolean containsAll(Collection o): Returns true if the given elements of the given collection are present. ![]()
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