Showing posts with label Expert Java developer. Show all posts
Showing posts with label Expert Java developer. Show all posts

Monday, September 29, 2014

jRebel - What is it and what should developers know?

Java application development, Java development, java web development servicesjRebel is a Java development tool that was formerly known as JavaRebel. This tool removes the need to redeploy the code as it will immediately change the codes and you need not restart the system. The tool is especially helpful while executing a tricky logic which you want to get right. For instance, if you want to add an approval to your structure, with the help of jRebel you can include the rules in fields, one after the other. You can keep working on the errors until the structure has been perfected. In addition if you have to add more fields to the controller or manager, you can do that too without any difficulties. jRebel will save all the application states. This factor ensures that it does not matter how you are arriving at the page you want to alter.

Things Developers Should Know About jRebel

jRebel uses the JVM, a Java agent plugin, which is a command for line option. It is easily downloadable from Java. This tool utilizes it for installation. However, do not misinterpret jRebel as an IDE plugin. Although there are certain modifications that the developers can carry out with it for a better experience but jRebel can work equally efficiently with a vanilla Java compiler and text editor. It would also be helpful for the developers to know that this is not a framework either. An application is not dependent on it. Developers can remove it anytime they want and continue with their work without any hindrance. Finally, there is no need to make any alterations to JVM while developing with this tool. It is compatible with all the major JVM implementations.

How It Works

Developers will have to integrate the tool with applications servers and JVM at the class loader level. However, instead of creating of new ones, it will extend the existing ones so that they can manage the reloaded classes. Once a class is loaded, the tool searches for an equivalent .class file from the classpath and other places that are mentioned in the rebel.xmlconfiguration file. When it finds the file it is searching for, the instruments will match it with the found.class file. The .class file is monitored as the changes are made in the loaded class. The updates are produced via extended class loader to the application. If mention in rebel.xml, it can also scrutinize .class files.

The developers can especially benefit from the fact that jRebel keeps the existing instances of the class while loading updates to it. This not only enables the application to keep running but it also does not go for a rerun when a new field is introduced.

If the programmers are using this tool then debugging gets a better solution. While chasing a bug, you research on what is happening, make changes and implement them and the effects will be shown immediately. Next time when such problems arise, the new code will break in directly once it has completed assembling the code.

Benefits of Using jRebel

There are various reasons why jRebel is used and the developers should be aware of it in order to apply this tool properly. This can be used to test and try the features of a framework together. Short codes to test the functionality of a new system can be included and the results will show immediately. The developers can also make use of the library to look for codes and install the same in the applications. Even in situations when owing to performance issues or diverse networks, the system cannot be stimulated, jRebel enables system deployment on the developer’s computer.

In addition to these, there are no restarts or intervention from this tool. This provides the developers with more chances and time to check if all is going well. They also have more time to improve things. To ensure scalability, performance and robustness, jRebel is the most convenient Java development tool available presently. To get maximum benefits of Java development, you may consider hiring services of a Java application development company.

We provide Java web development services. For all your Java development requirements, please get in touch with Mindfire Solutions.

Thursday, September 25, 2014

Java SE8 - Why is It the Best among All Its Releases?

Java web development, Java development services, expert Java developerAs a software development platform, Java Platform, Standard Edition (Java SE) is used by enterprises to create applications for a wide range of platforms and devices. Java SE makes it easier for programmers to develop and deploy Java applications on desktops and servers, and in embedded environment. It is also designed with a set of features to help developers in creating portable, secure and high-performing Java applications in an easier and faster way. Oracle released Java SE8 with several changes. Some of these changes are major, others are minor. But these features make Java SE8 the best among all its releases.

New Features that Make Java SE8 the Best among All Its Releases

Language Syntax Changes: Oracle has changes the Java language syntax to make the programming language compete with C#, Scala and other modern programming languages. The changes in language syntax will make it easier for programmers to process connections by distributing them over multiple threads. Unlike earlier versions of Java, Java SE8 comes with significant changes and addition to the language syntax. The programmers can now avail functional programming and closures while writing code in Java.

Lambda Expressions: As a major change, lambda expression enables Java developers to work as functional programmers. However, the set of syntactical capabilities is not something completely new. But the Java programmers can use lambda expressions create anonymous functions, while introducing the new anonymous function type in Java. Like a method, a lambda expression also provides a body and a list of formal parameters. The programmers can express a block of code or an expression as the body in terms of the parameters.

Improved Date and Time API: Java SE8 further allows developers to manage date and time through a completely revamped API. While creating new applications, they can replace the older classes with the new date and time API. So the new API will make it easier for programmers to streamline their code, while writing more intuitive programs. At the same time, they can further manage the different local dates, local times and time zoned by using new classes. The new classes can also be used to calculate differences between various times.

Stream API: Java SE8 further enables programmers to manage collections by adding new tools. They can use the new tools to effectively manage collections of sets, lists or maps. The new stream API will further help them in managing each item in a collection without writing explicit looping code. They can further use the API to break their processing into multiple CPUs. So the stream API will make it easier for Java programmers to optimize the management of large and complex collection of data without writing any lengthy code.

Nashorn JavaScript Engine: Java SE8 also comes with the new Nashorn JavaScript engine. As the JavaScript engine is written from the scratch for Java developers, it enables programmers to write JavaScript code, along with integrating Java classes and objects. Nashorn further implements a lightweight JavaScript runtime in Java with a native JVM. So the programmers can now embed JavaScript easily in Java applications through JSR-223. Likewise, they can also use the jrunscript command-line to create independent JavaScript applications.

Oracle has launched two distinct products that implement Java SE 8. But the Java SE Runtime Environment (JRE) 8 is designed as a subset of the Java SE Development Kit (JDK) 8. So the JDK 8 includes the features of JRE 8, while providing the APIs, JVM and other components required for running Java applications and applets. However, JRE 8 includes both standard and non-standard Java components that are not required by Java SE specification. So an enterprise must choose the product according to its specific needs to reap the benefits of Java SE 8. To get maximum benefits of Java development, you may consider hiring services of a Java web development company.

We provide Java development services. If you would like to discuss with a expert Java developer from our team, please get in touch with us at Mindfire Solutions.

Monday, September 15, 2014

JHipster - How does it help Java developers

Java development India, Java web development, hire Java software developerJHipster is actually an application generator that has been off late drawing quite a bit of accolades, particularly from the Java (J) developers. The main reason behind this is the fact that this application generator is basically designed to provide the Java developers the option of blending or combining their skills of Java and Javascript development on the same applications.

This open source application comes up with a wide range of technologies that include Angular.js JS framework, Spring Java, YSC or Yeoman Scaffolding Tool. JHipster is also capable of serving as a Yeoman Generator. This particular technology is basically used to build or develop various types of business applications as well as games, and is increasingly used by today’s developers as well as technicians who are into development of various types of games.

As per the experts, it is because of JHipster, that it is now possible to seamlessly combine JavaScript with Angular.js at the client’s end and Java at the back end through Spring. The application also helps other tools like Maven Build Tool that comes in handy while working with Java, Spring Data JPA, Spring MVC REST.

So far as the client’s end development is concerned, JHipster engages the Grunt JavaScript task runners, so as to build CSS as well as JS assets along with the Bower Package Manager, mainly for the purpose of installation of JavaScript libraries.

With the help of JHipster, accessing applications on desktops as well as various types of mobile services become much easier. Besides, it also supports Heroku Cloud Deployment. It is also capable of building J-7 as well as J-8 applications. Also, JH helps the developers when it comes to using the application with a SQL Database and MongoDB NoSQL database. Most importantly, it also helps in a seamless planning of Red Hat OpenShift cloud support. Besides, it comes in handy while enabling WebSockets with the help of Atmosphere Framework. It facilitates development of asynchronous application along with J. As per the reports that are coming in, the future generations of JHipster will put maximum emphasis on compatibility as well as stability between various options that are provided by Jhipster.

Another most important property of Java is that it does not, that frequently find its place in the world of hackers. It is a major way in which it helps the Java Developers. The application also helps by providing the very latest ‘toys’ to the users. Therefore, since the technology upon which JHipster is based is mature, or in other words, much stable, it can be very well and quickly adopted by the developers and it comes in handy when designing latest games that are richer and more dynamic than the ones developed in the past.

Last but not the least this particular framework imparts more sense of fun in functional programming, which is any way more interesting than object oriented programming, which is considered quite boring. Most importantly, functional programming helps the developers to solve the real life problems – something that object oriented programming cannot do. Hence, it can well be said that JHipstep not only adds spice to the life of functional programmers, but it also helps them to carry out an array of things that was otherwise either not possible or quite difficult or time consuming.

Besides, using functional programming along with JHipster helps the J programmers carry out programming with a singular code line – something that has always been the Java Developers’ area of comfort.

However, the most amazing aspect that needs to be mentioned in this respect is that Java is actually a verbose language for programming that does not extend any support for functional programming. Hence, when it comes to writing even the most elementary and simplest operations, the programmers need to use boilerplate coding. It is here where JHipster helps the Java Programmers, by making the life of the programmers much easier. To get maximum benefits of Java development, you may consider hiring services of a Java development India company.

We provide Java web development services. To hire Java software developer from us, please reach out to us at Mindfire Solutions.