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SAN RAMON, California, Feb. 4, 2019 /PRNewswire/ -- The Wi-sun Alliance, a world ecosystem of member agencies in the hunt for to speed up the implementation of open requisites-based field area Networks (FAN) and the internet of things (IoT), these days announced that the first wave of contributors have successfully accomplished interoperability trying out to become the first options to obtain Wi-solar FAN certification.
"requirements and interoperability are key to persisted boom for the IoT industry," says Phil Beecher, President and CEO of the Wi-solar Alliance. "the availability of certified Wi-sun FAN solutions gives you on their mission to present utilities, cities and repair providers adaptable multi-carrier networks on the way to help ensure interoperability these days and for future generations."
The solutions from Cisco, Itron, Nissin methods, Kyoto tuition, Landis+Gyr, Renesas and ROHM address the wants of utilities, city builders and other provider providers to simplify and guide giant-scale, outside networks for wise cities, wise utilities and different IoT rollouts.
Wi-solar FAN is a communications infrastructure for terribly massive-scale networks, enabling many devices to interconnect on one usual community. All Wi-sun certified items were carefully established through Allion test Labs in Taiwan, the first check lab to obtain Wi-solar FAN 1.0 validation, to make certain the gadgets worked collectively easily and securely to make sure speedy time to market. Upon successful examine completion, approved products are approved to reveal the Wi-sun certified FAN logo, which indicates to users that these products are compliant with open standards, interoperable, comfortable and scalable and can also be deployed with self belief. To be taught more about Wi-sun product certification, please consult with http://www.wi-sun.org.
Wi-solar FAN certified products:
Cisco: completed the very first Wi-solar FAN 1.0 certification with its IR509 WPAN Industrial Router, which may be deployed into a diverse set of internet of issues purposes together with: wise metering, sensible grids, distribution automation, supervisory control and statistics acquisition, and highway lights. committed to the Wi-solar software, Cisco has contributed assorted look at various mattress contraptions for the Wi-solar FAN certification software.
Itron: The Wi-sun FAN certified Itron Bridge5-WS is a key component of the Itron network platform that allows for cities and utilities to cost-conveniently integrate industrial IoT and utility manage and monitoring devices onto a comfortable, respectable and open necessities-based mostly Wi-solar FAN. With this certification, Itron continues its long-time leadership in the Wi-sun Alliance main up to this milestone, including enormous contributions to the building of the FAN Technical Profile, Compliance examine Plan and look at various mattress.
Nissin techniques, Kyoto college, and ROHM: Collaborated on the building of the EW-WSN BP35C4, which has accomplished Wi-sun FAN certification. The EW-WSN BP35C4 is a multi-intention module compliant with Wi-solar FAN 1.0 router with a UART interface. it is effortless to combine in wise utilities and numerous IoT devices.
Landis+Gyr: The N550 community Node is a vital part of Gridstream® connect, the trade leading utility IoT answer that can provide flexibility for purposes reminiscent of AMI, distribution automation, consumer engagement, smart cities, DER integration and greater. For extra tips please talk over with: https://www.landisgyr.com/answer/gridstream-connect/
ProCubed: supplied check equipment for the certification testing environment including: 1) ProShark Plus (Wi-sun FAN 1.0 Protocol Analyzer), 2) test bed Controller (seasoned-Si-sun FAN1.0-915-TBC
Renesas: selected to give some of the interoperability test mattress units for the Wi-sun FAN certification program and executed Wi-solar FAN 1.0 certification with its RF (RAA604S00)+ MCU (RX651) instant solution.
make certain to visit us at DistribuTECH 2019The Wi-sun Alliance will showcase Wi-solar FAN certified options from Cisco, Itron, Landis+Gyr, Nissin systems and Renesas at DistribuTECH 2019 in sales space 11225.
join the Wi-sun Alliance and utilities Hawaiian electric powered, Xcel power and Avangrid for the wise city/IoT panel session: field area Networks help Utility and wise city Initiatives on Wednesday, February 6th, 2019, from 1:30 p.m. - three:00 p.m. in rooms 280-282. Panelists will discuss how fanatics are fitting a essential part within the advent of sensible cities.
additionally don't leave out the expanding the Grid capabilities Hub on the reveal floor booth 12031 scheduled for Thursday, February seventh from 10:00 AM -11:00 AM. Iker Urrutia from Iberdrola will talk about interoperability applied to wise metering and how Wi-solar know-how is the communication protocol chosen to tackle the challenge for an upcoming undertaking in the state of big apple. Phil Beecher, President and CEO of the Wi-sun Alliance will provide a top level view of the Wi-sun Alliance company, the specification for field area Networks, and an replace on certification reputation, technical collaborations with other companies, and plans for the future.
concerning the Wi-solar AllianceThe Wi-solar Alliance is a world non-profit member-based mostly association made from business leading businesses. Its mission is to drive the world proliferation of interoperable instant options to be used in sensible cities, wise grids and other web of issues (IoT) purposes the use of open international necessities from companies, corresponding to IEEE802, IETF, TIA, TTC and ETSI. With more than 200 members international, membership of the Wi-solar Alliance is open to all industry stakeholders and comprises silicon vendors, product vendors, functions providers, utilities, universities, enterprises and municipalities and native executive corporations. For greater guidance, please seek advice from: www.wi-solar.org.
Wi-sun Alliance and the Wi-sun Alliance emblem are emblems of the Wi-solar Alliance.connected links
source Wi-solar Alliance
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I wanted to share my experience passing the OCMJEA 6 certification exam. Having cleared all the pre-requisite exams for the certification, I followed the advice and information routinely being shared by JavaRanch members. Also, I'd like to thank everyone for all the guidance and information that helped me clear the exams. Now, in this post, I would like to share my journey to becoming a certified Java architect.Professional Experience
I have over 12 years of experience in software application development, as well as maintenance work. Having worked in a technology outsourcing company, many tasks that I have done include the enhancement of software applications, reverse engineering, re-writing code, maintenance, and support. Development from scratch was rare, but in the past year, I have been assisting a senior architect in their work, though I did not do any architectural work independently.Preparing for the OCMJEA
On the whole, I had more than two years of study to prepare for the certification, and if you don't have good experience on the job, getting the certification will be much more complicated — as real-world experience is a requirement. I also studied the following books and would recommend them to all those who are getting ready for this certification.
1. Oracle/Sun Official online tutorial for Java EE 6. Comes highly recommended.
2. Real WorldJava EE patterns by Adam Bien. A must.
3. SCEA for Java EE 6 Guide by Mark Cade and Humphrey Sheil. A must.
4. UML Distilled by Martin Fowler. Basic understanding. Enough for the exam.
5. Java Web Services Up and Running by Marin Kalin. Optional for the certification but is very useful for web services.
6. EJB 3 in Action by Panda, Rahman, and Lane. An absolute must and comes in an easy-to-understand language.
7. Core J2EE Patterns by Alur, Crupi, and Malks. Excellent book on J2EE patterns.
8. Core JavaServer Faces, 3rd Edition by Geary and Hortsman. A good and easy-to-read reference.
9. SCEA Study Guide by Allen, Bambara. An older version, but still helpful as it covers GoF patterns for software design.IZO-807 Multiple Choice Exam About the Exam
I took two hours to complete this exam. The is mainly because I was reading through each question slowly and carefully. However, I still believe this exam can be done in 1.5 hours. Most of the questions in the exam were moderately difficult, and only a few were very difficult. At the same time, not even once did I come across a question that was easy or trivial — each was well-designed and properly thought out by the team.
I'd also like to show a gesture of appreciation for the effort that has been made in the design of the preparatory questions. The moment I was done with them, I submitted the exam, and after 10 minutes, I received an email notification that my results were ready and available for viewing at the CertView Portal. Well articulated and straight to the point, these questions held the potential to either let you go or earn you the certification. They also provided the basis from which I could then be in a position to take on the actual exam with confidence and lots of ease. In short, the design of such preparatory questions maps your knowledge to be ready for the certification.Preparations for the Exam
I managed to clear the exam on my very first attempt thanks to the fact that I purchased practice questions like the MyExamCloud OCMJEA 6 Study Plan package, which had questions at the same standard as the real exam and covered all required topics. The package clearly indicated all that I didn't know and, once I became aware of my weaknesses, I put a good effort into learning all the things I had been missing out on. Additionally, the exam has the full-length tests that are more than adequate for exam preparation. In short, the MyExamCloud OCMJEA 6 Study Plan has highly recommended contents for someone who'd like to prepare for the OCMJEA certification exam.IZO-865 Assignment and IZO-866 Essay
I recommend these two approaches for the exam.
The Cade and Sheil book, especially chapters 8 and 9, was quite useful.
The Amritendu De book. That was helpful as well.
The OCMJEA 6 Assignment Kit from epractizelabs was very useful.
On a different note, the references above miss out on some critical components of the certification which are why you need to supplement them with other references.Other Helpful Tips
Here is a useful article with 10 tips for passing the exam.
You can also go through the OCMJEA forum to read about the various topics that should be covered, especially for deployment diagrams — which weren't covered heavily in the advice I left above. Still, you cannot leave out such a crucial component when prepping for the exam. out in such a crucial preparation.Tools Used for Assignment Solutions
UML modeling tool: I used StarUML, an excellent tool which is also very highly recommended.
HTML static screen preparation: I used BlueGriffon, which is straightforward to use and free, enhancing my presentations and more than likely influencing the end results of the certification.
These tools were very useful, especially for designing the diagrams and the various structures that had to be implemented in the certification. Through lot of practice, I was able to clearly come up with illustrations for various concepts that were covered in the certification. It also made the process of preparing for the exam a lot of fun, as I could generate algorithms in graphical formats, something that further streamlined my preparation.
java ee ,java ,java certification ,ocmjea 6
The J2EE specification describes an end-to-end environment for the development of enterprise applications—from client GUI libraries, to Web browsers, to Web servers running JSPs and servlets, to the business tier, to the resource tier.
Business tier components run on the middle tier and thus have historically been referred to as middleware. These components run within an application server, which provides the container for the components. As with applets, this container provides various services for the component: lifecycle management, pooling, security, and automatic failover.
Prior to the EJB specification, developers creating middleware components needed to write code to specifically manage the infrastructure and provide services for the component. The EJB specification provides for the services in a consistent manner, thus providing the developer with a certain degree of portability in being able to move a component or set of components from one application server to another. In order to understand the creation and development of a J2EE application, it is important to understand the middleware technology provided with J2EE. For this reason, the next section discusses EJBs in more detail.EJBs
EJBs lie at the core of the J2EE architecture. They represent the middleware component specification for Java. The pure object-oriented nature and platform- independence, and security and network I/O features of Java made it a natural for the development of distributed components.
Following the release of the first EJB specification, the specification was quickly embraced and implemented by a number of application server vendors, and at last count, there were over 30 J2EE application servers available with varying costs and compliance levels (not all 30 are J2EE-certified by Sun Microsystems). Among these vendors, many try to distinguish themselves by offering specialized services. Not all vendors implement the complete J2EE specification, and many may implement a version of J2EE but not the current version.
As stated previously, EJBs operate within a logical container that provides a number of services; it is these services, in combination with the advantages of an object-oriented development, that make J2EE such an attractive development environment.
The following sections introduce some of the basic concepts of EJBs. But this nontrivial topic will not be dealt with in detail at this point; chapters 24 – 26 discuss EJBs in detail.Client Interaction with EJBs
The EJB is a remote object used by clients. The exact nature of the client can vary. The client can be another EJB, a Web component such as a servlet or JSP, a standalone Java application, or an application or component written in another language. These clients are referred to as rich clients.
An EJB client accesses the services provided by the EJB in a two-step process. First, the object is looked up using a naming service, which returns a reference to the home interface for the EJB. Next, the home interface is used to create a remote reference for the EJB. This remote reference is then used to access the services (the methods) of the EJB (see Figure 1-2: EJB Access).
Figure 1-2 EJB Access
The remote reference is effectively used as any other object would be used. Parameters may be passed to the remote object, and values may be returned from the object. Method parameters are passed by value, not by reference, as they are done with objects in the local Java Virtual Machine (JVM). Parameters passed must be serializable.
Communication with the EJB is by proxy. The client never holds a reference directly to the EJB, but instead holds an indirect reference to a remote interface (the remote object in the server). The remote interface communicates with its counterpart in the application server, which in turn communicates with the EJB. This allows the container of the application server to intervene and manage communication with the EJB. It is this indirection that allows the container to implement the various services identified below.The EJB Container
With EJBs, the container is implemented by what is commonly called an application server. Application server vendors and open source development groups may add additional services above and beyond the EJB specification and have some discretion on how services are implemented, but in order to be compliant, they must provide a core set of services, as follows:
J2EE emphasizes the use of declarative programming for many of these services. Rather than use complicated, error-prone method calls to implement a particular service, a declarative scheme under the control of the container is used to manage the service. The developer makes entries in a configuration file (known as the deployment descriptor), which describes specifically how the service should be implemented. These services and some background information on how they may be implemented are discussed in the following sections.
Security. EJB application servers must implement a specific role-based security model and must provide a role reference facility that allows a role reference name to be established for the role. Role permissions are then associated with methods and can be assigned to all methods within a component.
EJB security does not deal with authentication—the expectation is that this is managed in the presentation tier or the client tier. EJB security is concerned with the user's role and whether or not the user (in his or her role) has permission to perform the action he or she is attempting to perform (executing a method or accessing a resource).
Transactions. The EJB specification provides for transactions related to components and for transaction managers that transparently manage transactions with a single data source or with multiple data sources combined. Transactions can be managed either by the container using container-managed transactions or programmatically through specific method calls using bean-managed transactions.
Components may run within a transaction and may propagate transactions down the call chain. This means that a method may have one transaction mode and call another method. That method being called may elect to use or not use the transaction of the method that called it, depending on the configuration of the component. This provides an easy mechanism to manage transactions based on component boundaries.
Naming. The naming services provided by the EJB application server allow the component to use a JNDI naming service to access J2EE resources. A JNDI naming service allows an arbitrary name to be associated with a resource. The resource is represented by a Java object reference that provides access to the services of the resource.
The J2EE resources accessed through the naming service could be an EJB component, a JDBC data source, or an environment entry that provides configuration information for the component. The naming service allows entries to be retrieved as object references that may be cast or narrowed to their specific Java type.
Scalability. The EJB server should provide scalability features, which should be enjoyed by the components transparently. The EJB specification does not provide details on what these scalability features should be or how they should be implemented (though it does specify that pooling of EJB components may be done and provides callback methods to allow some control over the process). Virtually all EJB application servers provide some type of scalability feature, though the type and sophistication varies.
Lifecycle Management. The EJB server should provide lifecycle management services for the component. This means that the application server should find the bean when it is requested and should be able to return a home object reference for the bean. When the home object attempts to create or locate the bean, the application server should create or access the remote object reference and return it to the client that requested the component.
Lifecycle management also includes the passivation of EJBs. If an EJB component has not been accessed for some time, the application server can elect to passivate the bean. When the EJB component is later requested, the application server must be able to find the bean and restore its state.
EJBs can be instantiated before use and kept in a pool. Then, when an EJB is requested by a client, it is simply retrieved from the pool and made available to the client, thus avoiding the overhead of object instantiation (for the EJB) at runtime. See Figure 1–3.
Figure 1-3 EJB component pooling.Scalability and Failover
The scalability of an application represents the application's ability to handle an increase in usage without a significant drop in performance. For a Web site, usage is generally represented by the number of concurrent users or the number of page hits for the site for some increment of time (day, hour, minute, second).
Scalability is not addressed directly in the J2EE specification, but is addressed indirectly in the design of the components and how they interact with the container. Scalability is usually provided using a feature known as load balancing, where a dispatcher component can dispatch service requests over one or more servers. This load balancing depends on another feature known as application server clustering, where multiple application servers are attached to a cluster or group of servers. These servers usually work together to provide both scalability and failover capabilities for the distributed application.
Load balancing can be done using various algorithms, from a simple round-robin algorithm where requests are distributed evenly among all available servers, to a weighted average form of load balancing where requests are distributed among servers based on some statistical weight (see Figure 1–4).
Figure 1-4 Scalability with multiple servers.
Application servers may also provide some form of failover capabilities. The failover capabilities of a server represent the server's ability to survive a failure of some sort caused by either the server hardware or the operating system. Specifically, failover generally applies to the ability of session activity to survive the failure of one of the servers in the cluster. This failover may be transparent, meaning that if the server on which the session is running fails, the other servers in the cluster will manage its workload transparently to the client application.Flavors of EJBs
EJBs come in three flavors as of the EJB 2.0 specification: session beans, entity beans, and message-driven beans. These variations are for a purpose. Each bean has specific functionality that makes it amenable for providing certain services, as detailed in the following sections.Session Beans
Session beans represent a session between a client and an EJB, a client conversational state. Using the service model, a client will request a service from the bean through some conversation and the bean will respond with a result. This communication between the client process and the bean may or may not require the EJB to retain state information between invocations. If a session bean retains state between invocations, then it is considered a stateful session bean. If a session bean does not retain state between invocations, then it is considered a stateless session bean.
Any stateless session bean, since it does not retain state between invocations, should not use instance members or class members, because they will not be guaranteed to have sensible values—values specific to a client session—between invocations. In this vein, stateless session beans should receive a request, perform all work necessary to complete the request, and then return results for the request all within the space of the invocation (the method call).Entity Beans
Entity beans represent a unique element in a persistent data store. They represent persistent data, and in relational database terms, they are said to represent a row in a database table (or potentially, a unique record composed of a join across multiple tables).
Since they represent a unique relation in a persistent data store, an entity bean is represented by a primary key, a unique representation for the entity bean. A primary key can be represented by one or more columns in the underlying table.
An entity bean does not need to be mapped into a relational database. An entity bean could be mapped into a legacy database system or even into a set of files, though the most common implementation is that of object-relational mapping, using the entity bean to represent some portion of a relational database.
Entity beans must remain synchronized with the persistent data store. This is accomplished using a set of callback methods called by the container for certain lifecycle events. These methods must be implemented by the entity bean. Specifically, the ejbLoad method is used to load the bean from the database, and the ejbStore method is used to synchronize the bean with the database.
An entity bean developer can write the code for the ejbLoad and ejbStore methods (and a few others), or the application server vendor can provide a tool that will write the code for these methods. If the developer provides the code for the entity beans database synchronization, then the bean is using bean-managed persistence (BMP). If the developer allows the application server tool to create the code for the Entity Bean persistence, then the entity bean is using container-managed persistence (CMP).
As part of the EJB 2.0 specification, additional features have been added to entity beans to improve performance, address some of the limitations of the previous specification, and enhance the implementation of CMP. A query language (EJB-QL) has also been added, which allows internal selects and the navigation of related beans, values, and dependent objects.Message-Driven Beans
MDBs have been added as part of the EJB 2.0 specification. These beans represent a useful integration of the JMS and the EJB. Am MDB allows asynchronous invocation of an EJB component. The MDB is stateless and is invoked by the container upon the arrival of a message.Declarative Authorization and Security with EJBs
As indicated previously, the EJB container provides a number services for the distributed component including security and transactions. Part of the design for the EJBs stresses the use of declarative syntax versus traditional programming for certain properties. Using declarative syntax, entries in an XML file, an individual can define the security and transaction properties of an enterprise Java bean. This allows for easier integration of existing components from a variety of sources.
The alternative is to programmatically define the security of an application. This is a common approach with other applications, where the specific security of an application is defined in a series of Java language statements. Though common, this approach is prone to error. Using EJB declarative security provides a cleaner approach.Deploying the EJB
Once the interfaces and classes for the EJB have been declared, they must be deployed into the application server. This deployment process reads a deployment descriptor, an XML-encoded document that describes various properties of the EJB (see Figure 1–5). These properties include but are not limited to transactional behavior, whether a session bean is stateful or stateless, and whether an entity bean is using CMP or BMP.
Figure 1-5 EJB deployment.
The application vendor is expected to provide a tool that will perform the deployment process. The process includes reading the deployment descriptor, finding the classes and interfaces required, possibly generating implementation code for the interfaces, and making entries into the name server.
Today they are going to investigate as to which course is better? Java programming course in pune or .NET. Indirectly, they are going to see the comparison between two languages.Want to know the best part?
After going through this article, one would get a clear cut idea of which way to go in for a career.Which is the best programming language?
Which programming language is the best — Java or .Net — is a hot level headed discussion amongst job hopefuls and IT experts. JAVA is utilized by more than 6.5 million programmers. Actually released in 1995, this high level language infers a lot of its linguistic structure from C and C++. Basically, it is an object oriented language and its codes are basic and simple. Since it is an all around supported programming language, there are committed developers prepared to catch bugs rapidly and fix them.
Career In Java Programming: Sun Microsystems
Comparatively, .NET language is an innovation that is available with a few Microsoft Windows O.S. The .NET Framework is predominantly gone for use with new applications made only for the Windows platform. On the off chance that you take a gander at the utility estimation of both the programming languages , you will watch that both are in incredible demand in the IT and IT-empowered enterprises.Job demands for both Java and .NET:
It is an incredible expertise to learn since Microsoft’s special accentuation on publicizing it in India makes a ton of demand of .net programmers to get set in greater IT companies. They live in an instant, innovation driven world, and henceforth, adapting any new ability or programming will never go waste. To keep pace with the changing innovation scene, an engineer ought to be in a perfect world learn both the programming languages to improve vocation prospects.
Scope of their Java training
Despite the fact that Java experts are thought to be more sought after than .Net, it is evaluated that India holds a major interest for .NET experts with more than 80 thousand employments every year. In any case, in the US, there is a requirement for more Java experts. Be that as it may, things are changing quick and industry experts foresee a brilliant future for .Net experts. The employment profile of an average .NET developer incorporates composing website pages codes, creating applications for mobile, Windows and console platforms. They have access to databases and business servers, and can likewise tests software for sites. Taking after which a .Net engineer can change and troubleshoots programming. The .NET programming language is independent to create and convey web service based IT design development..NET and Java Similarities:
Microsoft .NET and Java both mean to rearrange the development of applications by giving an arrangement of standardized, secluded components and services. By having standard segments and administrations available to them, developers can focus on business needs (“business logic”) instead of programming more crucial services. Utilizing visual tools that disentangle application improvement is a kind of programming that is frequently called Rapid Application Development (RAD)To Conclude:
On the off chance that you are a .NET expert professionally, you can apply for a part of web application developer, programming engineer, window store application designer, senior software developer, software engineer etc. For a certified diploma core Java course proficient, there are a large number of employment roles, e.g., web designer, software developer, programming engineer, J2EE developer and software support engineer. In this way, whether you are a Java trained proficient or a .Net trained, the job prospects are splendid.
We can conclude that both are equally powerful programming languages with each having some advantages over the other. So, if you decide on Java, best Java training Institute in Pune is what you need.
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