POJO's are the old simple java components which some times are more effective and extensible than the latest frameworks. The simpler a framework's design, the more extensible it is to programmers should be always borne in mind. The need for adopting POJOs for both Java Data Objects (JDO) API 2.0 and the new EJB 3.0 specification stresses a single, simple persistence model.
Today the enterprise Java Community has chosen to build business logic components using POJO. This approach is more powerful and effective than deploying EJB in some cases. A POJO is a Java object that does not implement any special interfaces such as those defined by the EJB framework or call any framework APIs. The name came into usage to give regular Java objects a novel nomenclature and encourage developers to use them.
POJO is simple and yet has some surprisingly important benefits, including significantly better separation of concerns. POJO is a non-invasive framework. Developers agree that POJOs by themselves are insufficient. Reliance on the services that are provided by the EJB framework such as transactions and security, cannot be avoided. Examples of non-invasive frameworks include Spring, Hibernate, Java Data Objects etc. EJB 3.0 is POJO-based. These non-invasive frameworks certainly offer transaction management, security and persistence. The advantage of POJO is that you can design first, think about business logic, persistence, transaction etc in a step by step manner, one step at a time. This leads to faster development as well as error-free development. Improved portability is yet another advantage of POJO.
The new EJB 3.0 standard is solidly based on the POJO programming model. EJB components are less tightly coupled to the EJB 3.0 framework and development is significantly easier than with EJB 2.0. The POJO Data Persistence model is one of the most dependable transparent local and distributed method for persisting data into Plain Old Java Objects. Enterprise JavaBeans is a distributed method for persisting data. Java Data Objects (JDO) is a local (non-distributed) method for persisting data. Combining the best points of these two standards into a local and distributed method that is transparent to the Java object is the goal of POJO.
Our offshore software development outsourcing services business from India has always believed in combining simplicity with advancement in programming methods. The advantages of POJO like simplicity, ease of development and the non-invasive nature of the framework suits the our philosophy to the hilt. Combining expertise in technology with some very dedicated teamwork, Java Development India offers excellent Java Programming using the POJO Development model. Backed by continuous and non-stop customer care service, we are building portfolio of POJO clients.
|