Examples of org.springframework.web.bind.WebDataBinder

org.springframework.web.bind.WebDataBinder
Special {@link DataBinder} for data binding from web request parametersto JavaBean objects. Designed for web environments, but not dependent on the Servlet API; serves as base class for more specific DataBinder variants, such as {@link org.springframework.web.bind.ServletRequestDataBinder}.
Includes support for field markers which address a common problem with HTML checkboxes and select options: detecting that a field was part of the form, but did not generate a request parameter because it was empty. A field marker allows to detect that state and reset the corresponding bean property accordingly. Default values, for parameters that are otherwise not present, can specify a value for the field other then empty. @author Juergen Hoeller @author Scott Andrews @since 1.2 @see #registerCustomEditor @see #setAllowedFields @see #setRequiredFields @see #setFieldMarkerPrefix @see #setFieldDefaultPrefix @see ServletRequestDataBinder

      else if (required) {
        raiseMissingCookieException(cookieName, paramType);
      }
      cookieValue = checkValue(cookieName, cookieValue, paramType);
    }
    WebDataBinder binder = createBinder(webRequest, null, cookieName);
    initBinder(handlerForInitBinderCall, cookieName, binder, webRequest);
    return binder.convertIfNecessary(cookieValue, paramType, methodParam);
  }

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    Class<?> paramType = methodParam.getParameterType();
    if (pathVarName.length() == 0) {
      pathVarName = getRequiredParameterName(methodParam);
    }
    String pathVarValue = resolvePathVariable(pathVarName, paramType, webRequest);
    WebDataBinder binder = createBinder(webRequest, null, pathVarName);
    initBinder(handlerForInitBinderCall, pathVarName, binder, webRequest);
    return binder.convertIfNecessary(pathVarValue, paramType, methodParam);
  }

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      }
    }
    else {
      bindObject = BeanUtils.instantiateClass(paramType);
    }
    WebDataBinder binder = createBinder(webRequest, bindObject, name);
    initBinder(handler, name, binder, webRequest);
    return binder;
  }

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    @Override
    public WebDataBinder createBinder(NativeWebRequest webRequest, Object target, String objectName) throws Exception {
      LocalValidatorFactoryBean validator = new LocalValidatorFactoryBean();
      validator.afterPropertiesSet();
      WebDataBinder dataBinder = new WebDataBinder(target, objectName);
      dataBinder.setValidator(validator);
      return dataBinder;
    }

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  private NativeWebRequest webRequest;


  @Before
  public void setUp() throws Exception {
    paramErrors = new MethodParameter(getClass().getDeclaredMethod("handle", Errors.class), 0);
    bindingResult = new WebDataBinder(new Object(), "attr").getBindingResult();
    webRequest = new ServletWebRequest(new MockHttpServletRequest());
  }

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  }


  @Test
  public void createBinder() throws Exception {
    WebDataBinderFactory factory = createBinderFactory("initBinder", WebDataBinder.class);
    WebDataBinder dataBinder = factory.createBinder(webRequest, null, null);


    assertNotNull(dataBinder.getDisallowedFields());
    assertEquals("id", dataBinder.getDisallowedFields()[0]);
  }

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  public void createBinderWithGlobalInitialization() throws Exception {
    ConversionService conversionService = new DefaultFormattingConversionService();
    bindingInitializer.setConversionService(conversionService);


    WebDataBinderFactory factory = createBinderFactory("initBinder", WebDataBinder.class);
    WebDataBinder dataBinder = factory.createBinder(webRequest, null, null);


    assertSame(conversionService, dataBinder.getConversionService());
  }

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  }


  @Test
  public void createBinderWithAttrName() throws Exception {
    WebDataBinderFactory factory = createBinderFactory("initBinderWithAttributeName", WebDataBinder.class);
    WebDataBinder dataBinder = factory.createBinder(webRequest, null, "foo");


    assertNotNull(dataBinder.getDisallowedFields());
    assertEquals("id", dataBinder.getDisallowedFields()[0]);
  }

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  }


  @Test
  public void createBinderWithAttrNameNoMatch() throws Exception {
    WebDataBinderFactory factory = createBinderFactory("initBinderWithAttributeName", WebDataBinder.class);
    WebDataBinder dataBinder = factory.createBinder(webRequest, null, "invalidName");


    assertNull(dataBinder.getDisallowedFields());
  }

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  }


  @Test
  public void createBinderNullAttrName() throws Exception {
    WebDataBinderFactory factory = createBinderFactory("initBinderWithAttributeName", WebDataBinder.class);
    WebDataBinder dataBinder = factory.createBinder(webRequest, null, null);


    assertNull(dataBinder.getDisallowedFields());
  }

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