Strong Frameworks of Java we work with

• Spring

  Spring framework is an open source Java platform. It is lightweight when it comes to size and transparency. Spring is the most traditional framework of Java. It kept on adopting new changes, evolved and turned into a full-scale Java framework for the Internet-facing applications, offering software developers a powerful toolkit for the application development and application configuration as well as for security purposes. The core features of the Spring Framework can be used in the development of any Java application. On the top of the Java enterprise edition platform, there are extensions for building web applications. As compared to all the services, spring framework targets to make J2EE development easier to use and it promotes good programming practices. Spring has got a well-developed ecosystem, offering a variety of add-ons to choose from i.e. restful APIs or SOAP, security authentication, authorization, and encryption. Though traditional, it is nesting on the top of the chart due to simplified injection of test data. It has got enhanced modularity which results in the better code readability. There is a loose coupling between different modules along with the flexible use of dependency injection. Spring is organized in a modular fashion. It provides a convenient API to translate technology-specific exceptions into consistent, unchecked extensions. Its web framework is a well-designed web MVC framework which provides a great alternative to web frameworks such as Struts or any other over-engineered or less popular web frameworks. It provides a consistent transaction management interface that can scale down to a local transaction and scale up to global transactions.

• Hibernate

  Hibernate is an Object Relational Mapping solution for JAVA. It is an Open source persistent framework. It is a powerful, high performance Object-relational persistence and Query service for any Java Application. It maps Java classes to database tables and from Java data types to SQL data types and relieves the developer from 95% of common data persistence related programming tasks. Hibernate can be accommodated between the traditional Java objects and database server to handle all the works in persisting those objects based on the appropriate object relational mechanisms and patterns. Hibernate does not require an application server to operate. It takes care of mapping Java classes to database tables using XML files and without writing any line of code. It provides simple APIs for storing and retrieving Java objects directly to and from the database. It minimizes database access with smart fetching strategies and provides simple querying of data. Hibernate requires to know in advance where to find the mapping information that defines how Java classes relate to the database tables. It requires a set of configuration settings related to database and other related parameters. All such information is usually supplied as a standard Java properties file.

• Struts

  Strut is mainly used for building contemporary Java Enterprise Edition web apps. Struts is an open source framework which helps create well-structured web-based applications. It is based on the Model View Controller paradigm which distinctly separates all the three layers. Model - state of the application View - presentation Controller - controlling the application flow This makes Strut different from the conventional JSP - Java Server pages applications. Herein sometimes the logic, flow, and UI are mingled in a Java Server Page. The Struts framework is a complete web framework as it provides complete web form components, validators, error handling, internationalization, tiles and more. The Strut framework provides its own controller component. It integrates with other technologies for both Model and View components. Struts can integrate well with Java Server Pages (JSP), Java Server Faces (JSF), JSTL, Velocity templates, and many other presentation technologies for View. For model, Struts works great with data access technologies like JDBC, Hibernate, EJB, and many more. When the framework's controller receives a request, it uses the configuration file, to find out the correct routing information. Then on the basis of the information configured in the configuration file, it internally invokes an Action class. The configuration file is like the blue print for the request response flow. The Action class interacts with the Model to access or update the underlying data in the database/file. The framework includes ActionForm classes to transfer data between Model and View.