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In XperienCentral, the platform and the components are separated. This allows for a vigorous platform that gives developers the opportunity to easily build solutions or new products on top of the GX platform. The concept of a WebManager Component Bundle (WCB) was introduced in GX WebManager 9. In XperienCentral WCBs are referred to as Plugins. Because the legacy term "WCB" is hard-coded in the XperienCentral platform, you will occasionally see the term "WCB" used throughout the GX documentation. "WCB" is interchangeable with "plugin".GX XperienCentral platform. XperienCentral separates the platform and components for the following reasons:

• With a platform, there There is a much clearer distinction between customization and the standard product. By introducing the use of explicit APIs , with which functionalities can be added used to add functionalities to the basic platform, the procedure for developers is much clearer. Among other things, this leads to a much more flexible and predictable method of executing updates and migrations than before.
• Partners who want to create their own product with XperienCentral as an OEM product underneath can also do this with the platform strategy.
• With this platform not only partners, but also GX itself, partners as well as GX Software itself can easily realize new solutions or products.

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Nomenclature

The origin of plugins in XperienCentral lies in the identical functionality available in GX WebManager 9 which was known as a WebManager Component Bundle, referred to using the abbreviation "WCB". Because of this legacy, you will come across the string "wcb" in functions, methods, properties and parameters in the source code and Java classes exposed by XperienCentral for developing plugins. The phased-out term "WCB" is identical to the term "plugin" used in all XperienCentral documentation.

XperienCentral Components

In XperienCentral, a component is a small piece of software that serves provides a particular service. This may be a GUI component, but can also be a headless service. Each component has is of a particular component type which identifies the properties and logic the component servesprovides. In XperienCentral the possible component types are: 

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Multiple components can be combined into one plugin. A plugin is a set of components that logically belong to the same software component. For example, an authorization plugin may contain an authorization service as well as a panel in which users and authorization can be maintained.

Multiple plugins can be combined into a WCA, a WebManager Component Archive. This is in particular particularly useful for system administrators : because it is a set of plugins that can be uploaded into an XperienCentral installation with only in a single update. 

Plugin Certification

Plugins can be certified when they conform to the plugin guidelines. Conforming to these guidelines will improve the overall quality of the plugin in all its aspects - well-designed, well-documented, consistent, compatible, Internationalization ready and migration ready. For that reason it is important to know and understand these guidelines before you start developing them. Follow this link to see the Plugin Development Guidelines. 

Getting Started

The best way to start developing a plugin is by using an archetype. The example command below creates an element archetype: 

mvn archetype:generate -DinteractiveMode=false -DarchetypeGroupId=nl.gx.webmanager.archetypes -DarchetypeArtifactId=XperienCentral-element-archetype 
-DarchetypeVersion=<XperienCentral Version> -DgroupId=com.gxXperienCentral.helloworld -DartifactId=helloworldelement 
-Dclassprefix=HelloWorld -s ..\XperienCentral\settings.xml

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The following is a sample activator.java file with key: 

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public class Activator extends ComponentBundleActivatorBase {
  /**
   * Creates and returns the bundle definition of the WCBplugin.
   * @return the bundle definition of the WCBplugin.
   */
  @Override
  protected
ComponentBundleDefinition getBundleDefinition() {
    ComponentBundleDefinitionImpl componentBundleDefinition =
      new ComponentBundleDefinitionImpl();   
componentBundleDefinition.setId(WCBConstants.BUNDLE_ID);   
componentBundleDefinition.setName(WCBConstants.BUNDLE_NAME);   
componentBundleDefinition.setNameSpace(WCBConstants.NAMESPACE_URI);   
componentBundleDefinition.setDescription(WCBConstants.BUNDLE_DESCRIPTION);   
componentBundleDefinition.setComponentDefinitions(getComponentDefinitions());   
    return componentBundleDefinition;
  }
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The following applies to XperienCentral versions R43 and higher.

The following shows how to return a new ComponentDependency instance for a service class:

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/**
 * Returns a new ComponentDependency instance for the given service class and required flag.
 *
 * @param serviceClass the service class
 * @param required     whether the dependency is required
 * @return the ComponentDependency instance
 *
 * @since 10.43.0
 */
public ComponentDependency getComponentDependency(final Class<?> serviceClass, final boolean required) {
    ComponentDependencyImpl serviceDependency = new ComponentDependencyImpl();
    serviceDependency.setServiceName(serviceClass.getName());
    serviceDependency.setRequired(required);
    return serviceDependency;
}