How to use

notNull

method

in

org.beangle.commons.lang.Assert

public SessionHolder(Session session) {
 Assert.notNull(session, "Session must not be null");
 this.session = session;
}

public void init() throws Exception {
 Assert.notNull(this.config, "cas config must be specified");
}

/**
 * Create a new ServletContextResource.
 * <p>
 * The Servlet spec requires that resource paths start with a slash, even if many containers
 * accept paths without leading slash too. Consequently, the given path will be prepended with a
 * slash if it doesn't already start with one.
 *
 * @param servletContext the ServletContext to load from
 * @param path the path of the resource
 */
public ServletContextResource(ServletContext servletContext, String path) {
 // check ServletContext
 Assert.notNull(servletContext, "Cannot resolve ServletContextResource without ServletContext");
 this.servletContext = servletContext;
 // check path
 Assert.notNull(path, "Path is required");
 String pathToUse = StringUtils.cleanPath(path);
 if (!pathToUse.startsWith("/")) {
  pathToUse = "/" + pathToUse;
 }
 this.path = pathToUse;
}

/**
 * <p>
 * register.
 * </p>
 *
 * @param type a {@link java.lang.Class} object.
 * @param name a {@link java.lang.String} object.
 * @param args a {@link java.lang.Object} object.
 */
public void register(Class<?> type, String name, Object... args) {
 Assert.notNull(name, "class'name is null");
 if (0 == args.length) {
  nameTypes.put(name, type);
 } else {
  // 注册bean的name和别名
  BeanDefinition bd = (BeanDefinition) args[0];
  definitionRegistry.registerBeanDefinition(name, bd);
  // for list(a.class,b.class) binding usage
  String alias = bd.getBeanClassName();
  if (bd.isSingleton() && !name.equals(alias) && !definitionRegistry.isBeanNameInUse(alias)) {
   definitionRegistry.registerAlias(name, alias);
  }
  if (null == type) {
   if (!bd.isAbstract()) throw new RuntimeException("Concrete bean should has class.");
  } else nameTypes.put(name, type);
 }
}