Examples of org.impalaframework.module.DelegatingContextLoader

org.impalaframework.module.DelegatingContextLoader

{@link DelegatingContextLoader} is used as an alternative strategy for module loading to {@link ModuleLoader}.

Implementations of {@link DelegatingContextLoader} can be used to back aSpring module for types of modules for which the restrictions which apply for {@link ModuleLoader} implementations is not appropriate. For example, thereis a web_placeholder module type, which is backed by an empty instance of {@link org.springframework.web.context.support.GenericWebApplicationContext}, to cover servlet modules which are present in web.xml but not actually backed by any real module functionality.

{@link DelegatingContextLoader} could also be used for integrating withImpala specific frameworks which use a Spring application context in a very specialized way, for example, through their own subclass implementations of {@link org.springframework.web.context.WebApplicationContext}. An example might be a framework such as Grails. @see ModuleLoader @author Phil Zoio


    Assert.notNull(moduleLoaderRegistry, ModuleLoaderRegistry.class.getName() + " cannot be null");
    ConfigurableApplicationContext context = null;
    
    final ModuleLoader moduleLoader = moduleLoaderRegistry.getModuleLoader(definition.getType(), false);
    final DelegatingContextLoader delegatingLoader = moduleLoaderRegistry.getDelegatingLoader(definition.getType());


    try {


      if (moduleLoader != null) {
        if (logger.isDebugEnabled()) logger.debug("Loading module " + definition + " using ModuleLoader " + moduleLoader);
        context = loadApplicationContext(moduleLoader, parent, definition);
        moduleLoader.afterRefresh(context, definition);
      }
      else if (delegatingLoader != null) {
        if (logger.isDebugEnabled()) logger.debug("Loading module " + definition + " using DelegatingContextLoader " + moduleLoader);
        context = delegatingLoader.loadApplicationContext(parent, definition);
      }
      else {
        throw new ConfigurationException("No " + ModuleLoader.class.getName() + " or "
            + DelegatingContextLoader.class.getName() + " specified for module definition type " + definition.getType());
      }

Examples of org.impalaframework.module.DelegatingContextLoader

Related Classes of org.impalaframework.module.DelegatingContextLoader