public Object getBean()

in tapestry-framework/src/org/apache/tapestry/bean/BeanProvider.java [138:189]
33 lines of code
10 McCabe index (conditional complexity)

    public Object getBean(String name)
    {
        Object bean = null;

        if (_beans != null)
            bean = _beans.get(name);

        if (bean != null)
            return bean;

        IBeanSpecification spec = _component.getSpecification().getBeanSpecification(name);

        if (spec == null)
            throw new ApplicationRuntimeException(
                Tapestry.format(
                    "BeanProvider.bean-not-defined",
                    _component.getExtendedId(),
                    name));

        bean = instantiateBean(name, spec);

        BeanLifecycle lifecycle = spec.getLifecycle();

        if (lifecycle == BeanLifecycle.NONE)
            return bean;

        if (_beans == null)
            _beans = new HashMap();

        _beans.put(name, bean);

        // The first time in a request that a REQUEST lifecycle bean is created,
        // register with the page to be notified at the end of the
        // request cycle.

        if (lifecycle == BeanLifecycle.REQUEST && !_registeredForDetach)
        {
            _component.getPage().addPageDetachListener(this);
            _registeredForDetach = true;
        }

        if (lifecycle == BeanLifecycle.RENDER && !_registeredForRender)
        {
            _component.getPage().addPageRenderListener(this);
            _registeredForRender = true;
        }

        // No need to register if a PAGE lifecycle bean; those can stick around
        // forever.

        return bean;
    }