stateful

Such a multiplexing mechanism is required due to the stateful nature of some operations in the protocol.

In a load-balanced environment, some of your SOAP requests are bound to carry stateful information.

Interestingly, a Seam conversation is typically implemented with an extended entity manager injected into a stateful session bean (EJB).

We got started on the topic of stateful application development way back in the beginning of the J2EE pathfinder series.

Technology is permitting us to have increasingly stateful devices and systems on which we host increasingly capable, stateful software.

Finally , the pieces of the application can be further re- engineered to run as multiple, parallel, callable back -end stateful services .

But beyond that we're also trying to write components that are both stateful and loosely coupled.

One example where scripting is quite appropriate is that of generating an operating system image, whether it be stateless or stateful.

In this stateful design, the service increments and stores a previousPage variable somewhere to be able to respond to requests for next.

A stateful firewall is capable of assigning and remembering the state of connections made for sending or receiving packets.

Both of these stateful relationships, between successive invocations and between request and response are relevant to SOA service design.

Prior to Seam, the only convenient way to have stateful data was to rely on the HTTP session.

Allow your activity to restart when a configuration changes, but carry a stateful Object to the new instance of your activity.

NFS is now a stateful protocol and includes optimizations for data and metadata separation as well as data access parallelism.

As another example, you could apply inference rules to stateful event handling to make inferences about message sequences.

The overhead of a local session EJB is relatively low, so performance should not be an issue, even if they are stateful.

The more stateful applications are, the more they risk to pay in terms of real performance.

Here, once again, you should consider the necessity of a stateful interaction model as part of your decision process.

Next, remember how the state transition diagram for the Order clarified stateful behavior of the order.

It seems like you have found a good use for every EJB component type -- other than stateful session beans.

All that is necessary is for the bean to be declared as stateful in its deployment descriptor.

Moreover, singletons can be stateful; in this case, their role is to serve as a unique repository of state.

Another customer tried to get transactions and stateful services running, which unfortunately required calling services as Web services.

This application demonstrates how stateful behavior can be introduced to JSF managed beans through the use of the conversation scope.

A stateful bean can only handle requests from a single client until the client releases its hold on that particular bean instance.

session scope is designed to provide a persistent, stateful experience for a unique user, spanning multiple requests.

Content Workflows Manager (stateful): This utility is responsible to add the correct workflows to a content object upon creation.

One of the prime components of creating stateful applications is data management .

A stateful command maintains the internal state of its data and variables specific to each individual use.

Does the stateful component need to be able to survive a server crash?

This allows you to keep all of the benefits of not having an updateable variable while still having repetitive, stateful behavior.

Stateful logic: The ESB Gateway should never be required to persist or own any form of state between requests.

The Task POJO methods are not stateful, as you show in the sequence diagram.

Now let us consider the other stateful aspect of the conversation, the relationship between request and response.

Intrusion tracking model is composed of three parts: attack knowledge model, stateful alert correlation and intrusion intention recognition.

Web applications are inherently multi-user applications, and e-commerce applications are inherently stateful and transactional.

In applications of intrusion detection and stateful filtering, conflict discovery and resolution are key issues affecting security and QoS.

Furthermore this code is stateful which would have made it harder to debug or change later on.

If it is stateful, the same instance is used for start and stop.

Because of the stateful way propagation tracks which (successively less specific) rules have been called, a dispatcher is not thread safe.

I've oversimplified the problem because using a stateless model to simulate stateful applications can cause even more serious problems.

Previously in this series, we used a simple Calculator as a stateful resource.

Session is the heart and soul of stateful J2EE Web application scopes.

Although each stateful record type still has a state, it shouldn't be used to implement the workflow.

Conversations allow you to create stateful components without having to resort to using the HttpSession.

Obviously, a more useful server can provide a more interesting stateful datastream.

Stateful interactions between client and server can be managed on either the Web tier or the business tier.

We don't try to reinvent the web paradigm to a stateful one which it clearly isn't.

Login has a longer term effect and carries some type of context, like a stateful activity.

Sun introduced NFSv4 with strong security along with a stateful protocol (prior versions of NFS were stateless).

The client must re-establish a secure session with the service to send future messages or use a stateful security context token.

Does the stateful experience need to be tied directly into the user interface?

Either solution would provide a stateful experience at a fraction of the cost.

The SessionSycnhronization interface allows stateless or stateful session beans to respond to transaction failures.

Session beans come in two flavors: stateless and stateful.

While these can maintain a very small amount of state, they are inadequate for most stateful applications.

All in all, stateful session EJB components provide a heavyweight mechanism for managing application state.

The answers were almost as The EJB Advocate expected, except for tasks not being stateful.

A stateful bean preserves information between invocations from a specific client.

Stateful inspection technology tracks each packet traversing the firewall and makes sure that they are legitimate.

Which defines a family of specifications for accessing stateful resources using Web services.

It allows developers to develop single-node stateful Spring applications as opposed to stateless ones.

Use an application server that provides automatic support for recovery of stateful session bean state.

It also makes stateful applications and business process-driven applications a breeze to develop.

In Seam, all the basic application components are inherently stateful.

Correlation mechanisms are supported that allow identifying stateful instances of business processes based on business properties.

In this article, we have shown examples of services that are stateful and stateless with respect to their client contract.

OperatingSystem. ear: A sample stateful operating system service.

Moreover, Siwpas Enterprise Edition includes clustering and failover of stateful EJB and CDI beans with Tomcat native clustering.

Stateful inspection is a firewall architecture that works at the network layer.

This trend could bring us to stateful clients interacting with stateless servers (i. e. a simple database front-end).

However, in other common text-processing problems, the input files are highly "stateful. "

If the requirements call for stateful processing, you can rule out the ESB as your choice.

In general, there is tension between building a scalable and reliable infrastructure and allowing stateful interactions.

In contrast, Java EE application servers cannot load-balance requests to stateful beans.

Stateful security context tokens also allow a secure session to survive a Web server being recycled.

Bijection is a cornerstone of stateful component development.

Object methods bring other advantages to designing stateful systems.

In general, the overhead for stateful session beans is greater than for stateless session beans.

The in-memory cache greatly reduces database load in complex stateful applications.

One corollary of this general principle is that services should not be stateful.

Most stateful Web applications, however, lean more heavily on the session-scoped container, HttpSession.

Normally, a SIP Proxy is a stateful instance and stateless proxies are specified as such.

To manage state on the business tier, we use stateful session EJB components.

We'll get started with a quick review of stateful Web application development in J2EE.

Seam stateful components also provide much finer control over user states than the plain HTTP session does.

Templates are stateful and can be modified at any time.

Data management is key when creating stateful applications.

Dedicated, or stateful, beans don't have that problem, because once you request one, it's yours.

Through this exchange, we saw applications of Session EJBs -- both remote and local, both stateless and stateful.

Dr. Thomas has been quoted saying, "Objects were a mistake, " and "I am a stateful sinner. "

CalculatorService. ear: A sample stateful operating system service.

Firstly, it relieves the protocol (viz. , HTTP) from being stateful.

The routing of requests to stateful business process instances.

Next, I'll compare the strengths and weaknesses of J2EE's technologies for stateful application management.

However, how to expose stateful session beans as a web service is not specified.

Here, the focus is on interacting with stateful resources, rather than messages or operations.

It also allows configuration of stateful firewalls.

As an aside, some might argue that stateful session beans should never be used.

This example shows two stateful aspects of a conversation.

Finally, stateful data is defined for the particular file instance, such as the current offset into the file.

Use session scope to provide stateful user experience.

With Seam, they introduced the conversation scope, which is a stateful scope bounded by start and end points in the page flow.

This time, we'll focus less on the big picture and more on how we create and manage a stateful user experience.

We also extended the notion of components to optionally be stateful.

Let's look at two approaches to failover (stateless and stateful) and the various models they support.

Stateful session beans consume a substantial amount of the container's time and memory.

Examples of stateful rules include most event correlation rules and some uses of inference rules.

During the performance tests, the 3016B achieved 324 Mbps with the stateful firewall enabled.

In this case the stateful options are no different from the stateless ones.

The service key can guarantee that a specified stateful session bean will be accessed by subsequent requests from same client.

BPEL4WS provided the process automation capability while the conversation module handled the stateful message exchange with the customer.

This tutorial further explains how to use stateful resources in the stateless environment of Web services.

A stateful proxy participates in the call flows as we had seen in the example from the SIP overview.

This is the most commonly used context for providing a persistent, stateful user experience spanning multiple requests.

An application is said to be stateful if there is storage of some data resulting from a call that is used in a subsequent call.

Avoid stateful services and write thread-safe code.

The model makes clear some stateful behaviors.

A third alternative is stateful session beans.

The sample application has a stateful session bean.

Devolution (level 5) and true dynamism in the presence of stateful services (level 6) are very rare.

Miercom lab tests found the appliance attained the desired 1-Gbps throughput with stateful firewall enabled.

Used by memory to memory replication, stateful session EJBs, dynacache, and the high availability manager.

How substantial is the stateful data?

Closer to home, which is best: a stateless session bean, a stateful session bean, an entity bean or a message driven bean?

Only Version 4 can use stateful connections, and only Version 4 uses TCP as its transport protocol.

How to cluster the stateful application declaratively using Terracotta for Spring.

In addition, the use of stateful session beans pushes state to your application server, which is undesirable.

You need to avoid stateful session EJBs in your distributed applications.

The target page uses this information in order to build a stateful reference to the calling page object.

This way, for example, you can add new stateful dynamic pages without stopping or altering the long-running (and generic) server.

In these, the key of checking is that establishing a mechanism of Stateful Inspection, it can deal with data packets automatically.

How to write a stateful, conversational web application using Spring Web Flow.

I am having a hard time imagining how I would do the same thing as simply without stateful session EJB components.

Stateful session beans, on the other hand, are not as friendly with the container's resources.

With a stateful session bean, the business logic in the client can be as simple as

an improved lifecycle for stateful components, bound to well-defined contexts

Study of Stateful Inspection Firewall Technology

Adoption of Application Level Protocols Analysis on Stateful Inspection Firewalls

Implementation algorithm of UDP filtering on stateful-inspection firewall

Structural Design of Several Protocols in Stateful-Inspection Firewall

Distributed Stateful Inspection Technology on Hash

Stateful Security Alert Correlation by Dynamic Bayesian Plan Graph

The Comparison and Advice of the Solution of Stateful Networks

We ll look at three typical application client scenarios and discuss the most appropriate stateful solution for each one

Stateful Inspection of Computer and Service in Network

Build stateful sessions in JAX-RPC applications

Stateful Inspection Firewalls Based on Protocol Analysis

Stateful inspection firewalls based on special protocol stack

Firewall Technology Based on Stateful Inspection

personal firewall for stateful packet filtering based on ndis

It it stateful (SSL becomes cheap)

Management model of stateful POJO based on inversion of control

Firewalling technology based on the stateful packet filtering