Playing with classes and objects in Javascript

So, let’s play a little bit with classes and objects in Javascript. If you come from the class based languages like Java and C++, the way we handle classes in javascript looks a little bit strange. First, javascript is not class based, so, it doesn’t have the entity class. A class in javascript is a function. So we can see a simple class in the example below: MyClass = function(){ }; var instance = new MyClass(); So, to create a new class in javascript we only need to define a new function. Read On →

Dicas para conseguir o primeiro emprego em desenvolvimento de software

Eu não sou um super especialista nesse assunto, mas aqui vão dicas que no meu ponto de vista me ajudaram a conseguir meu primeiro estágio, além de outras dicas que teriam me ajudado se soubesse na época ;) Basicamente a lista se resume a um ponto: Ganhe experiência com trabalho voluntário Muitas das vagas de estágio pedem candidatos com experiência. Mas aí você se pergunta,_ “se é um estágio por que pedem experiência? Read On →

Starting With EJB 3

I’m currently studying to take SCEA, so, even after so long time after the EJB3 specification was released I took my first look into it only now. For sure, one of the most important change was the simple way to develop our EJB components, now POJO based with annotations, so, we can be away from the XML configuration as maximum as possible. To run this example I used: - Glassfish V2 Read On →

Scriptless JSPs

In the last 2 years I’ve been working with CMS solutions. Actually creating Templates to display the content retrieved from the CMS. So, basically we need to retrieve the content from the System. And having this content we need to apply some business logic to then diplay the content. For presentation we use JSPs. In the basic archtecture we have the JSP as presentation, the classes with the business logic and the classes to access the data (via SQL or CMS API). Read On →

Creating XML Using JAXB

Hi, In this post we will show a simple example on how we can create XML using JAXB. JAXB _“constitutes a convenient framework for processing XML documents, providing significant benefits as compared to previously available methods such as the one following the Document Object Model (DOM). In the DOM approach, the parser creates a tree of objects that represents the content and organization of data in the document. The application can then navigate through the tree in memory to access the data it needs. Read On →

Reading a RSS Feed using Google Ajax Feed API

Hi, In the project I’m currently working we had a requirement to display some news that comes from a External RSS Feed. At the beginning we choose an Server side approach, using the Rome framework to read the RSS Feed, but we faced some problems with proxy settings. So we needed to change our approach from server side to client side. For a client side approach we needed to use ajax, but using ajax we faced another problem when we tried to make a request to another domain. Read On →

XML Schema

Olá pessoal, este é o primeiro do post no meu blog, espero que gostem. XML Schema foi aprovado em 2001, e tornou-se a recomendação oficial do W3C para a validação de documentos XML. XML Schema é uma metalinguagem em XML, que é utilizado para descrever a estrutura de documentos XML. Surgiu para suprir as limitações impostas pelos DTD’s. Dentre as principais vantagens de utilizá-lo nós temos: uma grande quantidade de tipos básicos de dados, capacidade de extensão dos tipos básicos, relacionamento entre os elementos internos e é expresso em XML. Read On →

Olá mundo!

Bem vindos ao Xico Junior blog, um blog onde você encontrará posts relacionados a XML, Java, Web Services entre outras coisas