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Introduction Channels are used for routing messages to endpoints. Channels do the routing and endpoints perform the operations. Spring Integration (SI) provides numerous adapters for communication between different systems. SI uses 3 types of components to construct its messaging architecture: Message Channel Endpoint Endpoint...
Advanced class design: Anonymous classes are implicitly final and it can never be static. static method > default method default method > abstract method default method > default method (re-declared with different implementation) default method > static method static method > non-static method non-static method > static method Static...
Checked InterruptedException in Java is a constant source of pain for many of us; here is my understanding of how it should be handled. Source: What Do You Do With InterruptedException?
I want to share with you my Spring Core Certification notes I took. Here they are:
What is Spring Boot? Spring Boot is a set of preconfigured framework that works on top of Spring Framework and simplifies configuring a Spring application. What are the advantages of using Spring Boot? Most important advantage is easy configuration of Spring application. Additional to...
What does REST stand for? REST stands for REpresentational State Transfer. What is a resource? Anything that can be named is a resource. Usually that nouns that define our model. What are safe REST operations? Safe operations are operations that don't change things. These...
What is the delegating filter proxy? Delegating filter proxy is a servlet filter registered with the web container that delegates the requests to a Filter implementation on the Spring context side. That is there a 2 places servlet filters are attached...

Hibernate notes

Hibernate is an ORM framework that implements Java Persistence API (JPA). For Hibernate to work we need 3 things: Hibernate configuration (hibernate.properties or hibernate.cfg.xml) Mapping metadata (XML or annotation-based) - info for instructing Hibernate on how the entities have to...
What is the difference between checked and unchecked exceptions? Checked exceptions are exceptions that are checked at compile time - that fact enforces the developer to either catch it and handle or declare as being thrown and it will be...
MVC is an abbreviation for a design pattern. What does it stand for and what is the idea behind it? MVC stands for Model-View-Controller. The idea is to separate these three concepts rather than mixing them - as it is very...