Spring Asynchronous Request Processing via DeferredResult Class

Introduction I am going to discuss here how to perform asynchronous request processing via Spring’s DeferredResult class. A DeferredResult can be used when the application wants to produce the return value from a thread of its own choice. A DeferredResult is what is possibly not-yet-finished computation that will be available in future. Spring MVC 3.2 introduced a Servlet 3 based asynchronous request processing. Normally once request processing is finished, you leave the controller handler method, but it is not the same case with DeferredResult. Spring MVC will hold on with…

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Spring Asynchronous Execution using @Async

Introduction In this tutorial we will discuss about the asynchronous execution support in Spring using the @Async annotation. There are cases in which @Async is necessary to execute piece of code asynchronous. An example would be while sending a (JMS) message from one system to another system. The advantage is that the user does not have to wait for the response while the message is being send. @Async annotation on a method of a bean will execute in a separate thread i.e. the caller does not need to wait for…

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How to concurrently execute tasks using Java in Spring

This tutorials will show you how we can concurrently execute different operations using Java utility class called java.util.concurrent.Executors in Spring framework. Spring supports XML as well as Programmatic configuration of beans but, here we will use XML based metadata configuration. If you already have an idea on how to create a maven project in Eclipse will be great otherwise I will tell you here how to create a maven project in Eclipse. Prerequisites The following things are required in order to run the application Eclipse Kepler JDK 1.8 Have maven…

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Asynchronous REST Service using Jersey – Connection Callback

Introduction Here I am going to give an example on how Asynchronous REST webservice with Connection Callback. The most important concept in REST is resources, which are identified by global IDs — typically using URIs. Client applications use HTTP methods (GET/ POST/ PUT/ DELETE) to manipulate the resource or collection of resources. A RESTful Web service is implemented using HTTP and the principles of REST. Typically, a RESTful Web service should define the following aspects: The base/root URI for the Web service such as http://<host>/<appcontext/contextpath>/<url pattern>/<resources>. The MIME type of…

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Asynchronous REST Service using Jersey – Completion Callback

Introduction Here I am going to give an example on how Asynchronous REST webservice with Completion Callback. The most important concept in REST is resources, which are identified by global IDs — typically using URIs. Client applications use HTTP methods (GET/ POST/ PUT/ DELETE) to manipulate the resource or collection of resources. A RESTful Web service is implemented using HTTP and the principles of REST. Typically, a RESTful Web service should define the following aspects: The base/root URI for the Web service such as http://<host>/<appcontext/contextpath>/<url pattern>/<resources>. The MIME type of…

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Asynchronous REST Service with Timeout using Jersey

Introduction Here I am going to give an example Asynchronous REST service with Timeout using Jersey API. The most important concept in REST is resources, which are identified by global IDs — typically using URIs. Client applications use HTTP methods (GET/ POST/ PUT/ DELETE) to manipulate the resource or collection of resources. A RESTful Web service is implemented using HTTP and the principles of REST. Typically, a RESTful Web service should define the following aspects: The base/root URI for the Web service such as http://<host>/<appcontext/contextpath>/<url pattern>/<resources>. The MIME type of…

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Simple Asynchronous REST Service using Jersey

Introduction Here I am going to give an example on how Asynchronous REST webservice works. This is a simple asynchronous REST service using Jersey API. The most important concept in REST is resources, which are identified by global IDs — typically using URIs. Client applications use HTTP methods (GET/ POST/ PUT/ DELETE) to manipulate the resource or collection of resources. A RESTful Web service is implemented using HTTP and the principles of REST. Typically, a RESTful Web service should define the following aspects: The base/root URI for the Web service…

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Configure JMS Client using GlassFish 3

I have taken Theoretical concepts from http://docs.oracle.com/javaee/1.3/jms/tutorial/1_3_1-fcs/doc/overview.html#1027335 with a little modifications. What Is Messaging ? Messaging is a method of communication between software components or applications. A messaging system is a peer-to-peer facility: A messaging client can send messages to, and receive messages from, any other client. Each client connects to a messaging agent that provides facilities for creating, sending, receiving, and reading messages. What Is the JMS API? The Java Message Service is a Java API that allows applications to create, send, receive, and read messages. The JMS API…

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