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PedroRio - 05 Dec 2010
XEO Framework Primer
Welcome to the XEO (e
Xtensible
Enterprise
Objects) Framework's Primer, the following chapters will give you an introduction to the XEO framework and its basic concepts as well as guide you while creating your first XEO Application.
XEO is an Agile Development framework aimed to ease/speed the creation of web-based management applications by modeling real-world entities (and their behavior) as Object Models (XEOModels), which can then be used to generate web pages for listing, editing and searching instances of those object models. (
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Explanation of XEO Platform's Basic Concepts (
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Description of the internal architecture used by XEO (
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In this chapter we describe our very first application, to show XEO's capabilities resolving real-world issues, by describing a management application for a library (
read more).
In this chapter you'll learn how to create a new XEO Project using the
XEO Studio plugin, and also to deploy a XEO Project (
read more).
In this chapter we'll model the
entities described in the sample application chapter, as XEO Object Models. This chapter will be divided in two parts. The first part consists of modelling a simple entity (Author) and showing how to quickly set up viewers for that Object Model and the second part where the remaining entities will be transformed to Object Models. Links to both sections bellow.
Modeling the Author entity ((
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Modeling the remaining entities ((
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Controlling the desired behavior in each Object Model, using Java or BOL (
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XEO's visual layer, to create web pages capable of interacting with the objects, check out the introduction to XEO Viewers and Web Components(
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Try the first viewer, the Author list, edit and lookup viewer (
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Check the creation of a more complex viewer, the edit for the LIB_Book Object Model (
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Get a feel of the Java API for Web Components (
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Creating a more complex viewer, featuring custom lookup viewers and custom beans for the Movement edit viewer (
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Declaring security features of the XEO Objectsin the Library Application (
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XEO Modules
XEO can be extended with external modules. There are already two.
Provides access to XEO's Objects via REST / SOAP
WebServices (
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XEO BPM
Integrates XEO with a process engine (jBPM)
XEO Reference
This section contains the chapters that have reference for programmers who already understand the XEO Framework but want to check how a particular API behaves, how to create a specific XEOQL expression, etc.
Reference about the security properties in XEO (
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More in-depth look at XEO's Java API (Core API
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A list of java code snippets regarding common operations with the Java API of Web Components (
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How to create a custom component a use it in a viewer.(
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Instead of creating a full web component, you can also create a component plugin to change some of the default behavior of the component (
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The complete reference about creating XEO Object Models (
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Explanation of XEO's built-in "scripting" language" (
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XEO's built-in query language to query instances of XEO Object Models (
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Advanced features of the XEO Framework
EVery XEO Application has a set of parameters and configurations that can be visualized and changed in order to properly maintain the health of the application. The Administration console allows you to do just that (
read more)
In a XEO Application threads and schedules can be configured to perform background tasks (such as optimization, maintenance, etc...)(
read more)
The boConfig.xml file is the configuration file for a XEO Application (
read more)
An API to execute commands via
JavaScript (read more)
There are certain mistakes/erros when using XEO that lead to common error messages, if you're struggling with one,
check this section.
A XEO application's web.xml file contains some xeo-specific configurations which can customized (
read more).
The final step in creating a XEO Application is to deploy it to an Application Server (such as JBoss), in this section you'll learn how to create an EAR (using XEO Studio) and deploy that EAR to a JBoss server and the steps necessary to configure it correctly (
read more).