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000-150 exam Dumps Source : J2EE v1.4 Web Developer
Test Code : 000-150
Test title : J2EE v1.4 Web Developer
Vendor title : IBM
: 54 actual Questions
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IBM J2EE v1.4 Web Developer
This chapter described Java's evolution from an initial method of delivering customer/server classification applications by the employ of the web, to a sturdy OO platform that may sheperd colossal-scale multiuser commercial enterprise applications.
This chapter is from the booklet
over the years, the Java know-how platform has grown out of its timehonored applet customer/server origins into a sturdy server-aspect construction platform. initial platform applications added developed-in threading assist and supplied abstractions to I/O and networking protocols; newer types of the Java application progress kit (SDK) persisted to enhance these abstractions and insert more moderen framework choices.
The momentum of producing technology frameworks supporting commercial enterprise server-primarily based pile has persisted, and has been formalized into the J2EE platform offering. the motivation of this providing is to give builders with a group of technologies that succor the start of stout business-scale application systems. IT gurus are presented with an ever- altering enterprise and expertise landscape. know-how experts must equipoise the demands for brand modern automation requirements against the being of latest line of traffic applications; easily the employ of the know-how du jour perpetuates the issue of integrating present legacy methods. The purpose of the J2EE platform is to present a consistent and legit means by which these demands can subsist met with applications that possess the following traits:
excessive Availability— succor and exist in a 24/7 international company atmosphere.
at ease— subsist sure user privateness and self assurance in traffic function and transactions.
respectable and Scalable— aid elevated volumes of enterprise transactions accurately and in a well timed method.
This chapter presents an overview of the J2EE architecture, a short dialogue of the specification's section design and the options they deliver, and describes which J2EE technologies this bespeak will seat of attention on.
First, some background.
All J2EE technologies are constructed upon the Java 2 ordinary edition (J2SE). It includes simple platform courses, such because the Collections framework, together with more selected programs comparable to JDBC and different applied sciences that aid customer/server-oriented applications that clients fill interaction with via a GUI interface (e.g., drag-and-drop and assistive technologies). solemnize that platform technologies aren't restrained to framework implementations. They additionally consist of construction and runtime succor tools such because the Java Platform Debugger architecture (JPDA).
applied sciences specific to developing amazing, scalable, multitiered server-primarily based enterprise purposes are offered in the J2EE platform providing. while soundless assisting customer/server- primarily based architectures, J2EE platform technologies deliver back for disbursed computing, message-oriented middleware, and dynamic internet web page development. This chapter and most of this e-book will deal especially with some of those technologies. In certain, WebSphere 5.0 (the focus of this e-book) implements the J2EE 1.3 platform specification. a list of the technologies from J2EE 1.three (together with the supported ranges) is proven in table 3.1.
desk 3.1. J2EE technologies.
degree required through J2EE 1.three
Java IDL (Interface Definition Language) API
(supplied by artery of J2SE 1.three)
JDBC Core API
2.0 (offered through J2SE 1.3)
(supplied by means of J2SE 1.3)
(offered with the aid of J2SE 1.three)
EJB (enterprise Java Beans)
JSP (JavaServer Pages)
JMS (Java Message carrier)
JTA (Java Transaction API)
Java Activation Framework (JAF)
JAXP (Java API for XML Parsing)
Java 2 Connector structure (J2C)
JAAS (Java Authentication and Authorization service)
desk 3.2. J2EE 1.four technologies implemented via WebSphere 5.0.
J2EE 1.4 technology
JAX-RPC (Java API for XML-based mostly RPC)
SAAJ (cleaning soap with Attachments API for Java)
JMX (Java management Extensions)
moreover the required applied sciences for J2EE 1.3, WebSphere software Server 5.0 implements a couple of J2EE-appropriate technologies in boost of succor of J2EE 1.4. In particular, WebSphere too helps technologies which can subsist required in J2EE 1.four (table three.2).
probably the most appealing points of expostulate know-how is its potential to blend feature and facts prerogative into a unique point, too referred to as an object. Arguably, a unique expostulate implementation could subsist labeled as a part, but components proffer extra performance than offering entry to information and performing services towards this statistics. Flexibility is done with designs that may consist of distinctive classes connected through composition and inheritance. The word factor implies that they're a section of whatever thing whole, indicating that accessories require some form of reference problem space the region they can too subsist applied. The J2EE specification gives this frame of reference for components that can subsist used, prolonged and mixed by means of developers to carry efficacious commercial enterprise applications.
J2EE add-ons described for the platforms exploit the OO nature of Java by making employ of design patterns that provide both white and black container extensibility and configuration alternate options. The platform add-ons employ inheritance and composition prerogative through their design, featuring a artery for custom configuration by artery of developers. also, defining components in an summary method can enable programs developed the employ of those add-ons to drudgery inspite of how every vendor implements every concrete factor implementation.
gaining information of these design ideas employed within the platform implementations can back invent your personal designs extra stylish. These expostulate design innovations are nothing modern and were utilized full over the years in different OO languages. Two design topics that snitch different approaches in supporting component configuration are discussed in here sections.
builders can now fetch their fingers on an early version of IBM's WebSphere application Server V6 -- the primary essential seller-released utility suite to subsist Java 2 enterprise version-compliant.
The down load, attainable on IBM's DeveloperWorks web site, offers developers the means to dawn working immediately with the brand modern J2EE 1.4 mediocre on the WebSphere application Server code base, mentioned Bob Sutor, director of IBM's WebSphere utility unit.
"We want to fetch this in the fingers of builders," Sutor talked about. "We want them to kick the tires, fetch them on the brand modern expertise and prepare for the full product liberate, that allows you to occur within the 2d half of the yr."
here's a core piece of internet-primarily based technology, stated Jason Bloomberg, a senior analyst with research company ZapThink LLC, Waltham, Mass. whereas IBM is clearly the greatest player within the application server utility market, it does fill its competition, namely from BEA systems Inc., which sells WebLogic, and from Microsoft, with its .internet platform. Bloomberg celebrated that IBM has to subsist sure the tools are available for developers and ISVs to play with -- in spite of the fact that this downloadable code is truly a stripped-down edition of the remaining release.
"here is full about client acceptance," he talked about. "IBM desires to invent unavoidable they're no longer losing intellect partake to BEA or Microsoft."
WebSphere V6 is IBM's subsequent-era integration platform for constructing out service-oriented architectures (SOAs), with sheperd for brand spanking modern net features requirements, the latest J2EE Connector Adapter standards, plus other elements that could subsist protected in the full version.
In an SOA world, traffic tasks are achieved by using executing a sequence of "features," or jobs that fill well-defined ways of communicating. These capabilities more and more are required for IT stores where application and hardware from diverse carriers are deployed and techniques are created through distinctive pile groups.
doubtless the most distinguished factor to this free up of WebSphere is the assist for J2EE 1.four, Bloomberg talked about. J2EE is a key platform for setting up internet functions functions, and J2EE 1.four changed into these days authorised through solar Microsystems Inc.'s Java neighborhood manner. J2EE 1.four offers sheperd for the J2EE Connector Adapter (JCA) 1.5, which allows for for the combination of disparate traffic applications, akin to utility from SAP AG and PeopleSoft Inc.
Equally captious is that J2EE 1.four helps the WS-I's basic Profile. The primary Profile is a collection of guidelines that lets businesses examine and certify that web features applied sciences are interoperable with other platforms. The WS-I, or internet features Interoperability organization, is supported with the aid of IBM, amongst others.
IBM's WebSphere software Server has probably the most enchantment for people that already fill a worthy deal of Blue of their blood.
In late 2000, Atlanta-primarily based countrywide Account provider Co. (NASCO), which procedures more than one hundred million health-merits claims every year, turned into looking for an internet application server to give consumers the skill to assess their claims on-line. That statistics remains hosted on IBM mainframes. So whereas BEA's WebLogic had more suitable sheperd for Java necessities on the time, "WebSphere provided us greater elements built-in with an IBM environment," says impress Badia, NASCO's chief technology officer. for instance, he says, WebSphere helps mainframe file buildings and works smartly with IBM's MQ message-queuing middleware.
IBM likes to tout WebSphere's competence to dash on varied hardware programs, including mainframes, but the company has had situation preserving consistency throughout them at times. Aurora health Care, a health-care provider based in Milwaukee, runs WebSphere on AIX and z/OS for mainframes but its builders drudgery on windows and Linux machines. Frustratingly, WebSphere code developed on one platform behaved in another artery on a further, in response to Duane Wesenberg, director of internet purposes construction at Aurora fitness. "We were always having problems after they promoted an software as much as the large iron," Wesenberg says. IBM has fixed the problem in recent releases, he says.
WebSphere is additionally mind-numbingly complex, some consumers say. "if you're now not integrating an software to a back-conclusion system, i would not examine WebSphere," says Todd Stewart, director of suggestions expertise for Brenntag North the usa, a subsidiary of a German chemical distributor. "i am inclined to tackle the complexity as a result of the advantages they fetch from the platform."
however others wrangle that WebSphere is no extra intricate to fetch your fingers around than BEA's WebLogic. "The stage of complexity for either platform is rather shut," says Roman Lys, an suggestions-know-how manager with Toronto-based mostly Scotiabank, which runs its online banking applications on WebSphere. the most essential challenge for groups embarking on Java building, he says, is constructing skills in-apartment.
IBMNew Orchard RoadArmonk, gigantic apple 10504(914) 499-1900www.ibm.com/websphere
Ticker: IBM (NYSE)employees: 255,157
Steve MillsSenior VP, software GroupIn cost of large Blue's $14 billion software company unit, which encompasses 13,000 direct income and technical succor personnel. He joined IBM in 1974 as a income trainee in gigantic apple metropolis.
Bob SutorDir., WebSphere groundwork SoftwareResponsible for full WebSphere infrastructure application. Spent 15 years in IBM's analysis division, the region he labored on cyber web-publishing technology.
ProductsMore than one hundred IBM items elevate the WebSphere moniker, but the main application is the WebSphere utility Server, a web-based transaction engine obtainable for several operating programs, including IBM's z/OS and AIX. WebSphere Studio offers an environment for constructing, deploying and testing functions that comply with the Java 2 enterprise version (J2EE) specification.
NascoMark BadiaCTOmark.firstname.lastname@example.orgProject: health-benefits processing company constructed a Java-based internet application on WebSphere that lets individuals analysis claims and operate other activities.
Highmark life & CasualtyMatt PirochCIOmatt.email@example.comProject: Pittsburgh insurance company runs customized Java applications on WebSphere for claims processing and underwriting processing, which can subsist tied into an Oracle database.
Brenntag North AmericaTodd StewartDir., I.T.(610) 926-6100Project: Chemical distributor's WebSphere servers provide order processing and product catalogs linked without delay to its AS/400 systems.
ScotiabankRoman LysAsst. established Mgr., arm architecture Developmentroman.firstname.lastname@example.orgProject: Toronto-based mostly bank makes employ of WebSphere to deliver online access to existing banking applications, which hold three million lines of Cobol on an IBM mainframe.
Aurora fitness CareDuane WesenbergDir., internet Apps Developmentduane.email@example.comProject: Wisconsin fitness-care provider lets its 24,000 employees entry 30 net applications via WebSphere.
Hewitt AssociatesTim HilgenbergChief know-how Strategist for Applicationstim.firstname.lastname@example.orgProject: Human-components consulting company links to mainframe records with WebSphere, serving 5 million internet pages per day.
Executives listed listed below are full users of IBM's items. Their willingness to talk has been confirmed by means of Baseline.
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This chapter shows how to create different kinds of projects to build applications. It too introduces some of the advanced project features that are available with WTP and explains how to employ advanced WTP features to create project templates and apply best practices that are helpful to organize your progress work.
This chapter is from the bespeak
All right, guys! It's time to antiseptic up this town!—Homer Simpson
In this bespeak they characterize how to build applications that are defined by the J2EE specification. When you build an application, you create one or more projects that correspond to J2EE modules. You too employ these selfsame projects to organize your progress work; that is, you employ these projects
to manage the source code and files that invent up the application,
to divide the drudgery between the teams, and
to set up an automated process that builds the application, runs tests, and creates project reports.
This chapter starts with a basic description of the types of applications and projects that are supported in WTP. They will present you how to create different kinds of projects to build applications.
In the second section of the chapter, they will characterize some of the advanced project features that are available with WTP. There is very miniature available in terms of standards to sheperd you in the organization of project artifacts and source code for Web projects. Project best practices achieve a equipoise between the concerns that drive a particular progress project:
How many teams and developers are there?
What are the subsystems?
What components are tested, and how are they tested?
Who builds the code?
How is it integrated?
How is it released?
Naturally, each concern is a different dimension of the project. They will employ advanced WTP features to create project templates and apply best practices that are helpful to organize your progress work. They employ the generic term Web project to characterize the WTP project types that are provided for J2EE development.
A project is used to develop modules such as J2EE Web applications and EJBs. Typically, each module is a project, but this is not a strict requirement (see pattern 6.1).
For example, in a complete J2EE enterprise application, one project might consist of a Web application module for the presentation logic while another would subsist used to develop the EJB module for the traffic components. In this case, the complete application consists of three projects for the modules: one for the enterprise application, one for the Web application, and one for the EJBs. It is too workable to split the progress of a unique module into multiple projects. For example, a basic module relish a Web application might subsist built from utility modules built in other projects. You will learn how to organize your projects and modules using similar patterns later in this chapter.
Projects organize your source code and modules. WTP provides Web projects that are sophisticated Eclipse projects that know about J2EE artifacts. In addition to having basic Java project capabilities, a Web project can subsist used to organize J2EE artifacts into buildable, reusable units (see pattern 6.2).
An Eclipse simple project (or general project) provides the basic infrastructure to organize and build resources. The structure of a general project is very open; resources such as files and directories can subsist organized in any capricious form that makes sense for a particular purpose.
A JDT Java project contains Java elements such as packages, types, methods, fields, and property files for creating Java programs. A Java project knows how to build and dash Java programs. Each Java project has a Java builder that can incrementally compile Java source files as they are edited.
You can change the properties of a Java project, such as the Java build path. The build path is the classpath that is used for pile the project. There are alternative ways of structuring the sources in a Java project; examples embrace using a unique source folder that is the project root or multiple source folders for organizing intricate Java projects.
A WTP Web project has more than just Java code. It contains sources that are used to build Web applications, EJBs, and enterprise applications. A Web application can subsist as simple as a bunch of HTML files, or it can fill servlets, JSPs, tag libraries, and Web services. These artifacts invent the Web application. A Web project knows how to build, publish, and dash J2EE modules and artifacts on application servers.
Web projects fill builders, validators, and code generators. Builders bear standard publishable modules from intricate progress layouts. Validators succor identify and entangle coding errors at progress time. J2EE validators are very valuable, because the sooner you find a problem the easier it is to fix. In J2EE, there are many deployment descriptors that fill references to Java code and each other. These are interrelated in intricate ways. Failure to entangle a problem at progress time could lead to a runtime error that might subsist very difficult to diagnose and fix. Generators create components from annotations in source code (for example, using XDoclet or JSR 175).
The output of the progress activities are discrete J2EE components (EJBs, servlets, application clients), which are packaged with component-level deployment descriptors and assembled into J2EE modules. Web application modules, EJB modules, enterprise application modules, and Java 2 Connector Architecture (J2CA) resource modules are typical J2EE modules. A module contains code, resources, and deployment descriptors. A J2EE module forms a stand-alone unit, which can subsist deployed and dash on a J2EE application server. pattern 6.3 provides an overview of the J2EE structure associated with common J2EE modules, such as Web, EJB, and EAR, as described by the specification.
WTP provides projects and wizards to succor you fetch started quickly with different types of Web and J2EE applications. You can employ these wizards to create most standard Web and J2EE artifacts. Additional tools will succor you create, build, validate, and dash your applications on servers.
To fetch started, they will review the steps involved in creating different types of applications. The simple steps provided in this section will succor you acquire the skills you will necessity to drudgery with the examples in this book. More specifically, you will learn how to create these types of projects:
Dynamic Web project, where the output artifact is a WAR file
EJB project, where the output artifact is an EJB JAR file
EJB client project, where the output artifact is a JAR file that contains client-side classes for accessing an EJB module
Enterprise application project, where the output artifact is an EAR file containing Web, EJB, and other modules
Creating Web Applications
To build a Web application you necessity a project that contains a Web module. There are two types of Web projects: static and dynamic.
Static Web projects hold resources that provide static content. You can employ a static Web project to develop Web applications that hold many of the standard Web resources, such as HTML, images, CSS, and XML, and test them using a Web browser. These projects can subsist deployed to a conventional Web server, such as the Apache HTTP Server, that has no J2EE capabilities.
Dynamic Web projects are for J2EE Web applications that hold servlets, JSPs, and filters, in addition to static content. A dynamic Web project can subsist used as a stand-alone Web application, or it can subsist combined with other modules to create a J2EE enterprise application.
The J2EE specification defines a standard for Web application directory structure. It specifies the location of static Web files, JSPs, Java class files, Java libraries, deployment descriptors, and supporting metadata. The default dynamic Web project layout resembles the structure of a J2EE Web application module. In the workbench, you can employ the modern Web Project wizard to create a modern Web project. WTP has back for other types of project layouts and can automatically build a J2EE Web application archive (WAR) structure defined by the standard.
When you want to create a dynamic Web project, you will typically conclude the following:
Invoke the Dynamic Web Project wizard.
Provide parameters such as project title and locations for Web artifacts.
Choose a target runtime.
Choose project facets.
You can try these steps by repeating the following:
Switch to the J2EE perspective. In the Project Explorer view, prerogative click, and invoke the modern Dynamic Web Project menu detail (see pattern 6.4).
Click Next. The modern Dynamic Web Project wizard opens (see pattern 6.5).
Enter LeaguePlanetWebProject for the project name. A dynamic Web project contains J2EE components such as JSPs and servlets. It is necessary for J2EE APIs to subsist a section of the project classpath. This is done for you automatically when you associate a J2EE server runtime with the project. The runtime provides a set of libraries that will too hold JARs such as the servlet.jar. If you switch the runtime at a later time, the classpath is too updated. If your prefer not to employ a runtime to provide these libraries, you can create a folder that contains the J2EE libraries and point to it as your runtime library. However, this method will require you to obtain appropriate libraries for the J2EE APIs from
Assuming you fill defined a server runtime such as Tomcat, select it as the target runtime. They will revisit servers and runtimes in other chapters.
Configurations allow you to pick a set of project facets for common styles of Web projects. For example, if you pick the WebDoclet configuration, WTP will set up the project to enable XDoclet.
Click the Next button. The Project Facets selection page is displayed (see pattern 6.6).
A project facet describes some runtime aspect of the Web module. For Tomcat 5.0, you can specify the J2EE version, the Java version, and, optionally, the XDoclet version. Each server defines a set of supported facets and their allowed values. WTP configures the Web module and sets up the classpath for the project so that it matches the specified facets. Accept the defaults here and click the Next button. The Web Module page is displayed (see pattern 6.7).
The Web Module page lets you specify its context root title and the directories for its Web and Java resources. The context root is the title that appears in the URL for the Web application. Specify LeaguePlanetWebProject as the context root and accept the defaults for the directory names. Click Finish. WTP creates the project and populates it with configuration files such as the J2EE Web deployment descriptor, web.xml (see pattern 6.8).
Figure 6.8 Dynamic Web Project—LeaguePlanetWebProject
You fill now created a dynamic Web project named LeaguePlanetWebProject and targeted it to Tomcat.
The Dynamic Web Project wizard creates folders and files under the project (see pattern 6.9). Open the project you fill just created and browse its contents. For example, the WebContent folder contains a special folder named WEB-INF, which holds items that are defined by the J2EE specification and are not accessible by a Web browser. The WEB-INF/classes folder is where compiled Java code goes. It too contains a special file, web.xml, which is the J2EE Web deployment descriptor.
The WebContent folder contains Web resources such as JSP and HTML files, and other types of supporting resources (see pattern 6.9). The contents of WebContent will subsist accessible from the Web application context root.
The following default elements are created with a dynamic Web project:
WebContent/WEB-INF/web.xml: This is the Web deployment descriptor.
src: This is the Java source code for classes, beans, and servlets. The publisher will copy the compiled class files into the WEB-INF/classes folder of the final application.
WebContent: This is the Web application root. full Web artifacts placed in this folder will subsist available to the client. The publisher will copy the complete contents of this folder into the root of the final WAR file. It is workable to pick a different title for the WebContent folder or rename it.
WebContent/WEB-INF/classes: Sometimes code and libraries will subsist delivered to you in the form of class files (in comparison to those that are provided to you as JAR files, which you would reclaim into the WEB-IF/lib folder). To add them to the classpath of the final Web application, you can region them in this folder.
WebContent/WEB-INF/lib: They will region full libraries that are provided to employ in the form of JAR files here. They will subsist added to the build path of the project. The publisher will copy them into the WAR file, and they will subsist available to the class loader of the Web application.
A dynamic Web project can publish its contents as a Java Web application archive (WAR) file (see pattern 6.10). Publishers assemble the artifacts in a Web project, such as Java sources; Web content, such as JSPs, HTML, and images; and metadata, such as Web deployment descriptors, in a form that can dash on a J2EE application server.
WTP wizards simplify the tasks involved in creating J2EE modules. They fill just shown how to create a Web module. WTP online documentation at
provides circumstantial information about these wizards and the project structure. The process of creating an EJB application is equally simple. The next section describes how to create an EJB project that contains an EJB module.
Creating EJB Applications
An EJB project contains an EJB module. This project can subsist used to assemble one or more enterprise beans in a unique deployable unit. EJBs are deployed in a standard Java archive (JAR) file. An EJB project can subsist used to build stand-alone components, or it can subsist combined with other modules in a J2EE enterprise application (EAR).
Recall the structure of an EJB module (see pattern 6.3 earlier). EJB modules fill a simple structure that contains EJB classes and deployment descriptors. In the workbench, they can employ the modern EJB Project wizard to create a modern EJB project with an EJB module in it.
When you want to create an EJB project, you will typically conclude the following:
Switch to the J2EE perspective. In the Project Explorer view, prerogative click, and invoke the modern EJB Project menu detail (see pattern 6.11).
Click Next. The modern EJB Project wizard opens (see pattern 6.12). Enter LeaguePlanetEJB for the project title and select a target runtime that supports EJBs such as JBoss. They will contend EJBs in more detail later in Chapter 8.
Configurations allow you to pick a set of project facets for common styles of EJB projects. For example, if you pick the EJB Project with XDoclet configuration, WTP will set up the project to enable XDoclet. Click the Next button to proceed to the Project Facets selections page.
Project facets characterize aspects of J2EE modules (see pattern 6.13). For an EJB module, you can specify the J2EE version, the Java version, and, optionally, the XDoclet version. Each server defines a set of supported facets and their allowed values. For example, you will not subsist able to set an EJB facet using a Tomcat server because it does not fill an EJB container. WTP configures the EJB module and sets up the classpath for the project so that it matches the specified facets. Here, you will employ XDoclet to develop EJBs. Add the XDoclet facet by checking it. Accept the defaults for the EJB and Java facets and click the Next button to proceed to the EJB module settings.
The EJB Module page (see pattern 6.14) lets you specify the directory for Java resources. Optionally, you can create a Java utility module that will hold EJB classes and interfaces, which will subsist required by EJB clients. Click Finish.
WTP creates the EJB project and populates it with configuration files such as the EJB deployment descriptor, ejb-jar.xml (see pattern 6.15).
You may notice some errors in the modern EJB project. For example, if your EJB project does not hold any EJB components, this is considered an error according to the J2EE specification. If you chose the XDoclet facet and an XDoclet runtime is not yet configured, this will present up in the problem markers. These errors are timehonored and will subsist removed when you fix the preferences and add EJBs to the project.
The ejbModule folder contains Java and EJB resources such as the deployment descriptor (see pattern 6.16).
Similar to Web application modules, an EJB project has a publisher for EJB applications (see pattern 6.17). This publisher creates a deployable EJB module from the contents of the project with full the classes and deployment descriptors.
This completes the process of creating an EJB project. The next section describes how to create an enterprise application project that can combine EJB and Web modules in a J2EE Enterprise Application (EAR) module.
Creating Enterprise Applications
The most captivating J2EE enterprise applications fill more than one module. They fill several Web applications and EJB modules. The J2EE specification provides a basic application packaging structure called an enterprise application. Enterprise application archives are packaged as Java archives with the .ear suffix. Therefore, they are too known as EARs. An EAR can hold one or more
Web application modules
J2CA resource adapter modules
Application client modules
An enterprise application project contains the hierarchy of resources that are required to deploy these modules as a J2EE enterprise application.
An enterprise application module contains a set of references to the other J2EE modules that are combined to compose an EAR. In addition to the modules, an enterprise application module too includes a deployment descriptor, application.xml.
Publishers for enterprise application projects consume the output of the publishers from their component modules (see pattern 6.18). For example, the builder of an EAR that contains a Web application module and an EJB module waits until the builder for the Web and EJB projects creates the deployable structures for these modules, and then it assembles these artifacts in the EAR.
WTP has wizards and tools to create and edit EARs. They are described in the following employ cases.
Create a modern Web or EJB Module in an EAR
When a modern J2EE module project is created, such as a dynamic Web project or an EJB project, it can subsist associated with an enterprise application project (see pattern 6.19). The project wizards let you specify a modern or existing enterprise application. You can too pick the project in which you would create the enterprise application module. Finally, the EAR is updated to embrace the modern J2EE module in it.
Adding Existing Web and EJB Modules to an EAR
In the second scenario there are existing J2EE modules, which are to subsist added to a modern enterprise application. You create a modern EAR project and add your existing modules to it. The Enterprise Application wizard creates a modern project and allows you to pick the modules to subsist included in it.
When you want to create an EAR project, you will typically conclude the following:
Switch to the J2EE perspective. In the Project Explorer view, prerogative click, and invoke the modern Enterprise Application Project menu detail (see pattern 6.20).
Click Next. The modern Enterprise Application Project wizard opens (see pattern 6.21).
Enter LeaguePlanetEar for the Project name. Click the Next button to proceed to the Project Facets selection page.
Project facets characterize aspects of enterprise applications (see pattern 6.22). For the EAR module, there is only the EAR facet. Each server defines a set of supported facets and their allowed values. For example, you will not subsist able to set an EAR facet using a Tomcat server because it does not back EARs. Click the Next button to proceed to the EAR module settings.
The J2EE Module page (see pattern 6.23) lets you select the modules that will subsist included in the application. Select the LeaguePlanetEJB and LeaguePlanetWebProject modules. Note that you can too invent the wizard generate modern barren modules by clicking the modern Modules button. Click Finish.
WTP creates the EAR project and its deployment descriptor, application.xml (see pattern 6.24).
In the final scenario, you modify the modules in an EAR. You can add modern modules to an EAR or remove existing ones by using the J2EE Module Dependencies property page.
When you want to modify an EAR project, you will typically conclude the following: In the Project Explorer, highlight the enterprise application LeaguePlanetEar, prerogative click, and select Properties. As pattern 6.25 shows, you can then pick the modules to subsist included in the EAR.
EAR modules fill a simple structure. When modules are added or removed from an EAR, WTP automatically updates the module and the contents of the EAR deployment descriptor, application.xml, which is stored in the META-INF directory.
According to technology job board Dice’s October report, there’s one particular tech talent now in short supply across the U.S.: Microsoft’s .NET. Job postings requiring .NET are up more than 25% year-over-year, the company says – faster growth than the total job postings on full of Dice.com.
In addition, 27% of the searches in Dice’s resume database involve those looking for .NET skills and an smack smooth of 0-3 years. 46% of searches were for those with 4-7 years smack in .NET, and 21% were looking for .NET developers with 8-10 years experience.
Why the shortage? Dice believes that developers are worrying that if they specialize in .NET development, they won’t subsist able to arm out to other platforms. They too aren’t paid as much as those who specialize in other areas. For example, .NET developers merit around $83,000 per year, but Java developers typically make more than $91,000.
However, Dice says that there are now over 10,000 jobs on its site requesting the skill set, and that if demand continues to outstrip supply, wages will adjust accordingly.
Dice isn’t the only outfit reporting increased interest in .NET talent. In September, WANTED Analytics, a source of real-time traffic intelligence for the talent marketplace, reported similar trends. It create that .NET was one of the most commonly advertised job titles along with Java Developer, Web Developer, Sharepoint Developer, Web Designer, PHP Developer and J2ee Developer.
eFinancialCareers jobs: FIX Messaging Developer # 127728 in Credit Suisse -, Raleigh, NC, USA
Location: Raleigh, NC, USA
Job Type: Permanent, full time
Company: Credit Suisse -
Updated on: 26 Feb 19
We OfferTech Lead/Architect liable for delivery of the application components in the TV&C domain within GOSD. You will subsist expected to:Be skilled in Technical stack/tools such as Java, J2EE, Weblogic, JDBC, Spring, Oracle DBMS, RESTful WebServices, XML, JSON, Junit; JIRA, Maven, etc.
Will subsist skilled in FIX communication protocol. Manage QuickFix/J FIX engines, FIX sessions, progress of FIX based applications
Proficient in establishing FIX communication infrastructure across corporate firewalls, leased lines, etc.
Will fill the break to participate in establishing, planning and monitoring IT project delivery benchmarks and prioritize drudgery for offshore progress team
Lead or contribute to working groups focusing on various traffic requirements
Key Deliverables:Understand client's requirements at team and sub-department smooth and translate these requirements into technical designs. subsist able to positively influence and drive the technical designs
Architect, design and develop solutions for portfolio of applications in the respective domain area in the cash securities TV&C space
Accountable for providing efficacious estimates (HLE) for IT solutions for relevant applications
Act as a SME in the respective FIX domain and application landscape
Address problems of higher complexity, often spanning across multiple components or systems
Collaborate with globally diverse developers (CS, contractor and external vendors) including leadership of offshore and outsourced progress teams regardless of time zones
Should orchestrate and partly lead design decisions/discussions
Required to drudgery in a intricate and dynamic environment
Work embedded with well-established vendor team and ensure that key matter Matter Expertise is retained in CS
Clearly communicate intricate technical solutions to non-technical partners across multiple regions
Ensure high-quality component-level design and implementation of strategic components through the entire software progress process using multiple delivery models
Drive best practices by planning and conducting code reviews, and incorporate lessons into drudgery practices at the application and sub-department levels
Plan and conduct successful unit, performance, system, integration and acceptance testing, ensuring applications are able to meet stringent functional and non-functional requirements
Help provide a stable and robust production environment across key TV&C functions and related production incidents and drudgery closely with the Production back function within PTG
Build and drive relationships with key partners across multiple traffic areas & delivery groups.
Demonstrate stout communications & colleague management skills
Credit Suisse maintains a Working Flexibility Policy, matter to the terms as set forth in the Credit Suisse United States Employment Handbook.
You OfferYou fill a Bachelor's Degree in Computer Science or Engineering with equivalent experience
You fill a minimum 7-8 years of IT experience. Investment Banking Operations IT background ideal
You fill deep information of Software progress Lifecycle
You fill 3 or more years of monetary Industry/banking experience
You are skilled in FIX communication protocol. With smack managing Cameron & QuickFix/J FIX engines, FIX sessions, build FIX network connections, and progress of FIX based applications.
For more information visit Technology Careers .
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