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concept that dominates Internet Portal, is associated with Content Management. A portal is much as it can offer a flexible way, "pieces of programs, Java Portlets in the world, adapted to the needs and preferences of the administrator, or each user. In fact, not all users have to access (or have chosen in your preferences) to all portlets in a Portal.

That is, if we are modularity, flexibility, and even interoperability between platforms Portlets based solution is optimal.

As a picture is worth a thousand words, I invite you to try (which you have not already done so), iGoogle .


From iGoogle is not difficult to imagine an enterprise software, ERP, CRM, or an intranet-based portals.

Well, these "snippets" have Java specification: JSR-168, JSR-286 (Portlets version 2.0) and the site containing the portlets is a portal.

Before developing any portlet, the logical process is to analyze why there are portals in the market and see what benefits are. I understand that we have studied some engineering, this process of analyzing the right solution for every problem, we have internalized. We continually consulting on technology (this does not mean that people who have not studied engineering unable to make a consultancy). Back then, I did consulting portals, the portals appreciated: Liferay, JBoss Portal and JetSpeed \u200b\u200b(previously had ruled out other solutions, not to suit our requirements.) I will not go into the details of the consultancy, as it would for various posts. Just let me tell you that the performance of Liferay are dramatically higher than those of its competitors.

In my company we have a firm commitment to this technology and we have faced some Liferay-based portals. We have integrated Liferay with Alfresco (Document Management). Our goal: to become a reference for Liferay in Spain, not only for private enterprise, but for the government. And I hope there will soon be news about it ...

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Liferay Portlets with J2EE Architecture - MVC Pattern

The concept of reusing software is not limited only to use the same functions, classes, or methods to solve similar problems, but extends to other phases of software development as can be, as is the case at hand in this post, architecture.

reuse in internal architecture level are particularly important design patterns. Specifically, today I speak of the Standard Model-View-Controller. The MVC pattern is widely used in various types of applications.

I heard comments from developers, in which J2EE associate this pattern, since there are several frameworks that implement it, such as Spring MVC, but MVC, like other employers, is not unique the technology. In fact in the first iteration of design, architecture abstract programming technology. In Soltel have adopted this pattern in many developments of a different nature: J2ME mobility, mobility. NET, C #, and of course in J2EE applications.

In our day to day, do not develop critical applications, where it would be prohibited from using this type of pattern. In fact I doubt that for a critical application is chosen Java as a technological solution.

For J2EE applications, most of the time, the MVC architecture meets the needs of the application. In fact, I think it has become as standard de facto, and if you work on projects for public administration in Andalusia, almost a de jure standard, as in hanks (Framework for the Development of Andalusia), is recommended.

broadly, the pattern indicates that they should establish three components or layers in the architecture, each of these, only communicates with the adjacent.


- Layer View: Responsible for the presentation logic and data capture our system to the outside and vice versa.
- Control Layer: Responsible for the operational logic of business. Forwards requests Layer View of the Model Layer, and according to the response, redirect or Layer not Vista. Load objects and works with them.
- Layer Model: basically contains the actual business logic, the application domain (VO, Value Object) to get and set classes, and data access objects (DAO) to implement CRUD (Create, Read , Update, Delete). This broadly, because depending on the application, as well as VO and DAO patterns, you can enter a Façade. This layer interacts either directly (for example, jdbc) or through the persistence layer with database servers, LDAP ...

Many of the J2EE frameworks and implement communication mechanisms between layers following MVC.



Using JSF or Struts layer for Vista, for Layer Controller Spring and Hibernate JPA for Layer model would be one solution to the J2EE application architecture. Advantages


MVC pattern gives us a very maintainable software construction, which can be located in a flexible errors. Is a modular design, and little trailer, promoting reuse.
For example, we can make a desktop GUI and a web, which share the controller and model layers, and only treated as separate developments in the two layers Vista.

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Starts: Master in New

Perfeccionate: Master in Alternative Therapies

Our goal as therapists is to convey our learning over the years so that each reader can find in this blog a place where you can learn, experience and taste the best advice and scientific material that we will write a daily basis to achieve a better quality of life: physical, mental, emotional and spiritual.
Techniques to develop throughout this journey we will walk together will be:

* Foot Reflexology Massage Metamorphic

* * * Theory
Pranoterapia and practice of Chakra Meditation

* * *
Bioenergetics Healing Visualization Relaxation and breathing techniques

* * * EFT-
Cromoterapia "Emotional Freedom Techniques." Dowsing

* * * Magnet

Gem * Bach Flowers - Herbal Remedies, and much more ...

An imbalance in the human energy field creates a disturbance in the physical, emotional and mental. Alternative therapies work reorganizing the energy imbalance to achieve comprehensive health care.
In this context, characterized by Biopsicoenergética collect these ancient knowledge and give a scientific foundation and practical for everyone to get a better quality of life.

The Saturday 21 March at 16.30 pm is performed briefing and open on the Master in Alternative Therapies.

'll see you at the LIBRARY OF OLIVES.

Av Maipú 2901 - Olivos.
Reports: 4794-7655

Teachers in charge:

Marpez
Alberto Miguel Angel Cancino Mario Callegari