Examples of org.springframework.web.portlet.HandlerMapping

org.springframework.web.portlet.HandlerMapping
Interface to be implemented by objects that define a mapping between requests and handler objects.
This class can be implemented by application developers, although this is not necessary, as {@link org.springframework.web.portlet.handler.PortletModeHandlerMapping}, {@link org.springframework.web.portlet.handler.ParameterHandlerMapping} and{@link org.springframework.web.portlet.handler.PortletModeParameterHandlerMapping}are included in the framework. The first is the default if no HandlerMapping bean is registered in the portlet application context.
HandlerMapping implementations can support mapped interceptors but do not have to. A handler will always be wrapped in a {@link HandlerExecutionChain}instance, optionally accompanied by some {@link HandlerInterceptor} instances.The DispatcherPortlet will first call each HandlerInterceptor's preHandle method in the given order, finally invoking the handler itself if all preHandle methods have returned true.
The ability to parameterize this mapping is a powerful and unusual capability of this Portlet MVC framework. For example, it is possible to write a custom mapping based on session state, cookie state or many other variables. No other MVC framework seems to be equally flexible.
Note: Implementations can implement the {@link org.springframework.core.Ordered}interface to be able to specify a sorting order and thus a priority for getting applied by DispatcherPortlet. Non-Ordered instances get treated as lowest priority. @author John A. Lewis @author Juergen Hoeller @see org.springframework.core.Ordered @see org.springframework.web.portlet.handler.AbstractHandlerMapping @see org.springframework.web.portlet.handler.PortletModeHandlerMapping @see org.springframework.web.portlet.handler.ParameterHandlerMapping @see org.springframework.web.portlet.handler.PortletModeParameterHandlerMapping

    pac.setConfigLocations(new String[] {CONF});
    pac.refresh();
  }


  public void testParameterMapping() throws Exception {
    HandlerMapping hm = (HandlerMapping)pac.getBean("handlerMapping");


    MockPortletRequest addRequest = new MockPortletRequest();
    addRequest.addParameter("action", "add");


    MockPortletRequest removeRequest = new MockPortletRequest();
    removeRequest.addParameter("action", "remove");


    Object addHandler = hm.getHandler(addRequest).getHandler();
    Object removeHandler = hm.getHandler(removeRequest).getHandler();


    assertEquals(pac.getBean("addItemHandler"), addHandler);
    assertEquals(pac.getBean("removeItemHandler"), removeHandler);
  }

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    assertEquals(pac.getBean("addItemHandler"), addHandler);
    assertEquals(pac.getBean("removeItemHandler"), removeHandler);
  }


  public void testUnregisteredHandlerWithNoDefault() throws Exception {
    HandlerMapping hm = (HandlerMapping)pac.getBean("handlerMapping");


    MockPortletRequest request = new MockPortletRequest();
    request.addParameter("action", "modify");


    assertNull(hm.getHandler(request));
  }

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    pac.setConfigLocations(new String[] {CONF});
    pac.refresh();
  }


  public void testPortletModeViewWithParameter() throws Exception {
    HandlerMapping hm = (HandlerMapping)pac.getBean("handlerMapping");


    MockPortletRequest addRequest = new MockPortletRequest();
    addRequest.setPortletMode(PortletMode.VIEW);
    addRequest.setParameter("action", "add");


    MockPortletRequest removeRequest = new MockPortletRequest();
    removeRequest.setPortletMode(PortletMode.VIEW);
    removeRequest.setParameter("action", "remove");


    Object addHandler = hm.getHandler(addRequest).getHandler();
    Object removeHandler = hm.getHandler(removeRequest).getHandler();


    assertEquals(pac.getBean("addItemHandler"), addHandler);
    assertEquals(pac.getBean("removeItemHandler"), removeHandler);
  }

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    assertEquals(pac.getBean("addItemHandler"), addHandler);
    assertEquals(pac.getBean("removeItemHandler"), removeHandler);
  }


  public void testPortletModeEditWithParameter() throws Exception {
    HandlerMapping hm = (HandlerMapping)pac.getBean("handlerMapping");


    MockPortletRequest request = new MockPortletRequest();
    request.setPortletMode(PortletMode.EDIT);
    request.setParameter("action", "prefs");


    Object handler = hm.getHandler(request).getHandler();
    assertEquals(pac.getBean("preferencesHandler"), handler);
  }

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Related Classes of org.springframework.web.portlet.HandlerMapping

org.springframework.web.portlet.handler.ParameterHandlerMappingTests

org.springframework.web.portlet.handler.PortletModeHandlerMappingTests

org.springframework.web.portlet.handler.PortletModeParameterHandlerMappingTests

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