Practical jboss seam projects pdf

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Practical Jboss Seam Projects Pdf

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Seam 3[ edit ] Seam 3 provides a modular set of extensions to the CDI programming model. Seam's mission is to provide a fully integrated development platform for building rich, standards-based Internet applications tailored for traditional and cloud deployments. Seam 3 is intended to be a more scalable, feature rich set of extensions than Seam 2, which is under maintenance development only. Seam sources on Github have not been updated since September Active development of Seam 3 has been halted by Red Hat. However, simple POJOs can be used at the back end. Once a component becomes a Seam component, it can be accessed through JSF or through other business-logic components in a unified manner. Thus, one can access any back-end EJB component from the front-end by addressing it by its Seam component name. This Java web framework incorporates identity management features. The framework also expands the concept of contexts. Each Seam component exists within a context. The default Seam context, a conversation, can span multiple pages and usually spans the whole business flow, from start to finish.

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Practical jboss seam projects

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Practical Android Projects

API Javadocs. PDF K. Seam Framework: Experience the Evolution of Java EE 2nd edition. Seam in Action. Practical JBoss Seam Web 2. JBoss Seam: Beginning JBoss Seam: From Novice to Professional. Seam Core Refcard. Seam UI Refcard. JBoss RichFaces Refcard. Any other methods on the component will not be accessible on the client side. In effect, a type stub serves as a local copy of a data type.

The data associated with a type stub is only transmitted remotely when the object is passed as an argument to a remote method call on an executable stub, or returned as the result of a remote method call. The getLineItems and getOrderStatus methods would be the only ones mapped in the type stub, since they have the format of JavaBean property accessors.

If a downloadOrder is returned as the result of a remote method call, values for the lineItems and orderStatus properties will be serialized to the client and made accessi- ble through the mapped getLineItems and getOrderStatus methods. In most cases, type stubs will be dynamically generated as the result of calling meth- ods on executable stubs.

When you invoke methods on that stub, the types for the arguments and return values for the method will have type stubs generated for them automatically. In the case of the Gadget Catalog, our search method accepts a String and returns a list of Gadget objects. The Gadget class is an entity EJB, and it will have a type stub gener- ated for it by Seam remoting when we invoke the search method. Component and Seam. Component The Seam.

JBoss Seam

Component object provides methods for accessing existing Seam server compo- nents, as well as creating new ones, from the web client. If the referenced component is a session EJB, or if the com- ponent is a JavaBean with WebRemote annotations, and its JavaScript mapping has been preloaded through the Resource Servlet, the stub will be an executable stub.

If the named component is not suitable for an executable stub i. Now that we have this stub, we can access the data on the component and use it in the web page. This can be useful when you want to use AJAX calls to add a new object to the server-side persistence, for example.

JBoss Seam - Wikipedia

The newInstance method takes the name of a Seam component, makes a request to the server to create a new instance of the same type of component, generates a JavaScript client stub for the new component, and returns it.

If the getComponentName method returns null, the reference does not refer to a Seam component. Remoting The Seam.

Remoting object provides lower-level remoting functions. Component object in your JavaScript code, and these meth- ods will in turn use the Seam. Remoting functions to implement the component-level functionality. But Seam. Remoting methods are available for you to use if needed. The Seam.

While Seam. The argument to createType is the full classname of the object you want created. Seam will instantiate the object on the server, and then generate a JavaScript type stub for it on the client. StatusCode" ; If the call is successful, the statCode JavaScript variable will be a type stub for a new StatusCode entity bean created on the server. The other useful method in Seam. Remoting is the getTypeName method.

This method will return the fully qualified classname for the server-side object reference passed into the method. Implementing the Auto-Complete Search Box After all that background on Seam remoting services, we can finally turn to implement- ing the auto-complete search box in the Gadget Catalog home page. For now, we are going to limit ourselves to using just the Seam JavaScript library and native browser JavaScript to implement a simple auto-complete function on the main home page in the Gadget Catalog.

In order to implement the auto-complete function, we need to do the following: 1. Capture the characters that the user types into the search input field as they are being typed. Make a remote call to the search method on the gadgetAdmin component, passing it the text the user has typed so far in the search box.

Take the returned list of matching Gadget objects and give the user the appropriate feedback in the page.

The first step is to add a JavaScript callback to the input field in the page that will be triggered whenever the user types text into the field.


The simplest way to accomplish this is to put a unique ID value on the input element:.

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