How DBC framework helps in writing bug free code always?

Every time a new version of software is released by Java development team, it assures significant improvements over the last version. The incremental version also includes code modifications and code reviewing.  Depending on code structure and its level of difficulty, performance of a system gets affected largely.

Let us see in brief how existing version can be enhanced for better execution and implementation?

  • Extended class and overriding methods should be defined clearly
  • How to use method of super class?
  • The behavior of class should be meaningful and as per expectations only

These problems are faced by developers every day during program development and enhancement. This is the reason documentation has become necessary to understand the complexity of program and its nature. In case, program artifact is so complex that it makes it difficult for developers to redesign or implement the existing code.

However, programs that include DBC framework and assertions are easy to understand and implement. Here everything can be changed or enhanced quickly because assertions advertise about classes, methods and interfaces loudly. Assertions would also give a clear picture on system state and its behavior. This is the reason with assertions; development is easy and more effective.

Here, in this blog we will discuss on DBCProxy framework that invokes dynamic proxy classes. For this purpose, we have to discuss on DBC technique first only then we would be explain architecture of DBCProxy framework clearly. You would also get to know how DBCProxy framework can be best utilized along with your program.

What is DBC?

Every time when design analysis and object oriented testing is performed by Java development team, many of the abstracted issues are identified that are critical for program enhancement. As a result, developers give clear explanation to these abstractions so that it can be clearly identified in later stages without any conflict. At the time of program implementation, developers can use this information to convert identified abstractions into Java interfaces. In this way, you may advertise for abstraction about their clear meaning and functionality.

Abstractions are given clear name and definitions that help a lot to developers in later stages. These precise specifications offer pleasing deal of information to Java development team. But don’t leave the plain text in the same way otherwise could become ambiguous later.

DBC gives clear and detailed specification along with assertions. Let us see the type of assertions and their utilization in software programming –

  •  Preconditions – They are defined before execution time when method is invoked by class. In case, preconditions violate, it will give you an error.
  •  Postconditions – They are defined after execution when methods are passed to a class.
  •  Invariants – They can be called anytime to check valid state of an object.

Assertions are part of specifications not implementation. DBC clearly defines and separated these two phases. As program gets larger and complex, identifying design and implantation issues become a challenge. The complete success of software largely depends on usage of assertions and their implementation. For big projects, it is necessary to work on API specifications.

API specifications are generally ambiguous. If software architect or software designer interprets API specifications differently then it may cause problem for developer later. It also introduces bugs in the program that are difficult to handle later. DBC is an assertion based program having following benefits –

 Programs that include DBC framework and assertions are easy to understand and implement.
 Program can be changed or enhanced quickly because assertions advertise about classes, methods and interfaces loudly.
 Assertions would also give a clear picture on system state and its behavior.

Now you have clear idea on DBC technique and its usefulness. Let us discuss on DBCProxy framework in detail now –

The framework can be utilized not only during design phase but testing also. It is surely recommended to use this interface for production systems. It aids in improving quality of software significantly. The framework uses proxy method to execute classes and assertions. It is easy and convenient in use. We can say that DBCProxy is an advanced version of DBC Java development technique to guide you on different programming aspects.

You can best utilize DBC with java programs by leveraging existing Java techniques and platforms. It will enhance object oriented and design skills. We can say that DBCProxy is an advanced version of DBC Java development technique to guide you on different programming aspects.

The article has been shared by Java development team at Aegis Software having avid experience on Java platform, technologies and framework. The team is putting maximum efforts to share only best information with Java community worldwide. Our endeavor is to deliver most reliable and result driven software development services to our client across globe.