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About Bikram Kundu

I am a Software Craftsman, with slightly more admiration towards design and architecture. Among the few and far developers with proficiency in Java & JavaScript. I am equally in love with SkillIQ and RoleIQ.

JMS Message Model

Messages are the heart of JMS, whether it is an event or a business data. Messages consist of a header, custom properties, and a body. This is what you will learn as part of the JMS message model (JMS message anatomy). A JMS message is composed of Header, Properties, and Body (Payload). We will discuss about all of them in [...]

By |2019-11-10T09:32:10+00:00November 10th, 2019|Categories: Java™, JMS|

JMS Prioritize Messages

We will discuss JMS Prioritize messages in detail with examples. The JMSPriority header field of each message represents its priority. I have talked about prioritizing messages in Message Model Tutorial. JMS has 10 priority levels, 0 to 9. 0 is the lowest priority and 9 is the highest priority. As per the JMS standard, a message with priority 0-4 is [...]

By |2019-11-08T12:43:23+00:00November 8th, 2019|Categories: Java™, JMS|

JMS introduction – Java Message Service

JMS stands for Java Message Service which is a standard for accessing messaging middleware servers in Java. This is a JMS introduction tutorial to give you a brief overview of messaging and JMS. You will learn the advantages of using JMS, different messaging models in JMS. What is messaging? Messaging is a process of exchanging Business data across various applications [...]

By |2019-11-03T04:27:40+00:00November 3rd, 2019|Categories: Java™, JMS|

Essential maven plugins – plugins for every developer

I already mentioned earlier, maven is just a framework of plugins. This article talks about the essential maven plugins, handy for every developer. There are Maven plugins for almost every task. Make sure you have read my previous article on Maven plugins in-depth. In Effective Pom, I showed you that by default there are several maven plugins that get inherited [...]

By |2019-10-21T15:53:54+00:00October 21st, 2019|Categories: Java™, Maven|Tags: , , , |

RxJS buffer operator

A rxjs buffer operator collects the values emitted from a source Observable as an array and emits them whenever the inner observable emits a notification. This operator is available under the package rxjs/operators. Marble diagram of the buffer operator RxJS buffer operator - (https://rxmarbles.com/) The topmost line represents the source$ Observable and the line below is the inner observable. The [...]

By |2019-10-19T11:55:16+00:00October 19th, 2019|Categories: JavaScript, RxJS|Tags: , , |

RxJS ajax operator – Creation operators

Learn RxJS ajax operator in detail with code examples. This is a stable operator in RxJS V6.x. What is RxJS ajax operator? The ajax Operator creates an Observable from an Ajax request with a request object or a URL string. In simple language, use ajax() operator to create Observable for an Ajax request. API - ajax(urlOrRequest: string | AjaxRequest) As [...]

By |2019-10-18T14:11:50+00:00October 18th, 2019|Categories: JavaScript, RxJS|Tags: , , , |

RxJS Scheduler

RxJS Scheduler is a powerful tool to control the execution of a subscription. A Scheduler can control when the subscription execution starts and when the notifications are delivered. You will learn when to use queueScheduler, asapScheduler, asyncScheduler and etc. A scheduler in RxJS consists of 3 components and they are as below. Data Structure - A scheduler is a data [...]

By |2019-10-19T03:45:52+00:00October 13th, 2019|Categories: JavaScript, RxJS|Tags: , , |

RxJS Subject in depth – Multicast values

An RxJS Subject is a special type of Observable that allows multicasting to multiple Observers. The concept will become clear as you proceed further. As you learned before Observables are unicast as each subscribed Observer has its own execution (Subscription). This is a complete tutorial on RxJS Subjects. You will also learn other variations of Subjects like AsyncSubject, ReplaySubject, and [...]

By |2019-10-19T03:45:24+00:00October 11th, 2019|Categories: JavaScript, RxJS|Tags: , , |

RxJS Subscription – represents a disposable resource

RxJS Subscription is an object that represents an execution of Observable. A Subscription is used to unsubscribe the observer attached to an Observable. In the last part of the previous article, you have learned about Unsubscribing Observable Executions. But technically it is unsubscribe() of a Subscription. You will learn about Subscriptions in-depth in this article. NOTE: In the older version [...]

By |2019-10-19T03:44:56+00:00October 9th, 2019|Categories: JavaScript, RxJS|Tags: , , |