Historically, when an enterprise Java developer talked about deploying an application server, the idea being that they are taking enterprise application archive (EAR-file) and serving it to install WebSphere or JBoss, or make some other manufacturers in the Java EE framework. Application server, where it was received compile JavaServer Pages Servlet loaded, Enterprise JavaBeans managed, and basic resources, such as Java Naming and Directory Interface (JNDI) or pools database connections have been provided.
Indeed, application servers, develop, and deploy the target sometimes involved a unique twist on the application server as usual. Portal server, where improvements are standardized basic JSP and Servlet model, such as personalization and effects settings, is an example of an application server, offering more than what’s available in the standard specification of J2EE, but even in the heart of the Portal Server within the enterprise was to create Java events under it.
Moving away from EJB components
But what happened in the past few years is that structures such as spring and seam prompted the developers to take a much simpler approach, as they develop their applications, and as such, many of the services provided by traditional application servers have gone unused. As a result, many consumers away from the application server connection, the term application server with the idea of ??Java EE application server certified. In the community of Java, the application server is not necessarily a server that has been certified as a Java EE-compliant. So, what is the “application server?
In its simplest form, an application server, just an environment that provides all the runtime services that your application needs, whether that environment is fully compliant with the Java Enterprise or not. For many, the open source Apache Tomcat Servlet engine provides all the functionality needed by the client implementation. Other manufacturers, such as SpringSource, increase Tomcat, adding to it with performance monitoring and tuning cache improvements. Amazon to their ability Beanstalk offers this type of Servlet deployment environment that promises scalability.
And, of course, other requirements demand the deployment of application servers to focus less on handling Web requests to a Web-based content, and instead focus on the processing of Web services and data components. In this space the data grid, regardless of their compliance with Java EE, can provide all the facilities and services necessary to deploy the application.
What is application server?
So, what is application server? Even in a world Java, application server definition should go beyond just a discussion full accordance Java EE. As the world changes in enterprise deployments, we should be more flexible with our definitions, and to accept the fact that the application server can be any environment that provides the services necessary to deploy, host and manage our applications at runtime.