All You Need To Know About Java Spring & Hibernate

Spring is certainly a very popular application development framework meant for enterprise Java. Myriads of developers across the world make use of the Spring Framework in order to create easily testable, high performing and reusable code.

Well, Spring framework seems to be an open source platform (Java). As far as size and transparency is concerned, it is lightweight. The core features of this framework can be utilized to develop any Java application; however, extensions to build web apps on top of Java EE platform are available. Spring framework’s main target is to make J2EE development much easier to use as well as promote a good programming practice by means of enabling a programming model that is POJO-based.

Advantages of using Spring Framework

• Spring facilitates developers to come up with enterprise-class applications with the help of POJOs. When you use only POJO, you don’t require an EJB container product like an application server; however, you have the choice of using just a robust servlet container like Tomcat or any other commercial product.

• This framework seems to be organized well in a modular fashion. While the number of classes and packages are substantial, you just have to worry about those ones you really require and ignore the rest.

• It is simple to test an application written using Spring as an environment-dependent code is shifted into this framework.

• Spring doesn’t reinvent the wheel; rather, it uses a few existing technologies such as several ORM frameworks, JEE, logging frameworks, JDK timers and Quartz.

• The web framework of Spring tends to be a well built web MVC framework that offers a wonderful alternative to web frameworks like Struts or various other less popular or over engineered web frameworks.

• Spring offers a quite convenient API in order to translate tech-specific exceptions into consistent unchecked exceptions.

• Spring provides a transaction management interface that is consistent and that which can scale up to international transactions and scale down to a local transaction.

• Lightweight IoC containers are lightweight, particularly compared to the EJB containers, for instance. This seems to be beneficial in the development and deployment of applications on computers that have limited CPU and memory resources.

• Similar to its counterparts, Spring framework is a skeleton that offers a solid groundwork around which an application can be built. Well, the presence of this skeleton structure seems to guide and help the developer all through the process of application development. In the same way, spring framework possesses frozen spots – places that are rigid so as to maintain the blueprint and hot spots – places contributed by the developer. Generally, hot spots largely refer to Plain Old Java Objects (POJOs).

About Hibernate

Hibernate appears to be an ORM (object-relational mapping) library for Java language, eventually offering a framework to map a domain model (object-oriented) to a conventional relational database. By replacing direct database accesses (persistence-related) with a range of high-level object handling functions, Hibernate resolves object-relational impedance mismatch issues. Moreover, Hibernate enables both storage and retrieval of the Java domain objects by means of Object/Relational Mapping.

What Hibernate does

• Maps Java class to different database tables and vice versa

• Facilitates data query and retrieval

• Makes application portable to every relational database

• Generates SQL query according to the underlying database and attempts to ease the developer from handling manual result set and object conversion

• Improves performance by offering varied levels of cache

Learn Spring and Hibernate

Choose an online tutorial if you want to learn Spring and Hibernate conveniently. There are a myriad free and paid online Spring and Hibernate tutorials wherein one can learn this technology and benefit. Moreover, there are a lot of regular classes available.

Spring and Hibernate Integration tutorials and support are available in large numbers on the internet. If you are looking forward to have a career in this domain, it is ideal to take up a Java Spring and Hibernate certificate course from a reputed provider.