Examples of org.springframework.binding.value.ValueModel

Package org.springframework.binding.value

Examples of org.springframework.binding.value.ValueModel

org.springframework.binding.value.ValueModel
Describes models with a generic access to a single value that allow to observe value changes. The value can be accessed using the #getValue()/#setValue(Object)/ #setValueSilently(Object, PropertyChangeListener) methods. Observers can register instances of PropertyChangeListener to be notified if the value changes.
The listeners registered with this ValueModel using #addValueChangeListener will be invoked only with PropertyChangeEvents that have the name set to "value".
AbstractValueModel minimizes the effort required to implement this interface. It uses the PropertyChangeSupport to fire PropertyChangeEvents, and it adds PropertyChangeListeners for the specific property name "value". This ensures that the constraint mentioned above is met. @see org.springframework.binding.value.support.AbstractValueModel @author Karsten Lentzsch @author Keith Donald @author Oliver Hutchison

        TestValidator v = new TestValidator();
        fm.setValidator(v);
        TestConversionService cs = new TestConversionService();
        cs.executer = new ConversionExecutor(String.class, String.class, new CopiedPublicNoOpConverter(String.class, String.class));
        fm.setConversionService(cs);
        ValueModel vm = fm.getValueModel("simpleProperty");
        // starting at 2: constructing a formmodel + creating valueModel
        int expectedCount = 2;
        assertEquals(expectedCount++, v.count);


        vm.setValue("1");
        assertEquals(expectedCount, v.count);


        // no change in value, no validation triggered.
        vm.setValue("1");
        assertEquals(expectedCount++, v.count);


        vm.setValue(null);
        assertEquals(expectedCount++, v.count);


        vm = fm.getValueModel("simpleProperty", Integer.class);
        vm.setValue("1");
        assertEquals(expectedCount++, v.count);


        vm.setValue("2");
        assertEquals(expectedCount++, v.count);
    }

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    public void testValidationMessages() {
      DefaultFormModel fm = (DefaultFormModel) getFormModel(new TestBean());
        ValidationResultsModel r = fm.getValidationResults();
        TestValidator v = new TestValidator();
        fm.setValidator(v);
        ValueModel vm = fm.getValueModel("simpleProperty");
        // starting at 2: constructing a formmodel + creating valueModel
        int expectedCount = 2;


        assertEquals(expectedCount++, v.count);
        assertEquals(0, r.getMessageCount());


        v.results = getValidationResults("message1");
        vm.setValue("1");
        assertEquals(expectedCount++, v.count);
        assertEquals(1, r.getMessageCount());
        assertContainsMessage("message1", r.getMessages());


        v.results = getValidationResults("message2");
        vm.setValue("2");
        assertEquals(expectedCount, v.count);
        assertEquals(1, r.getMessageCount());
        assertContainsMessage("message2", r.getMessages());
        // this will cause a binding exception
        vm.setValue(new Object());
        assertEquals(expectedCount++, v.count);
        assertEquals(2, r.getMessageCount());
        assertContainsMessage("message2", r.getMessages());


        // this will clear the binding exception
        vm.setValue("3");
        assertEquals(expectedCount++, v.count);
        assertEquals(1, r.getMessageCount());
        assertContainsMessage("message2", r.getMessages());


        fm.validate();

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    public void testRaiseClearValidationMessage() {
      DefaultFormModel fm = (DefaultFormModel) getFormModel(new TestBean());
        ValidationResultsModel r = fm.getValidationResults();
        TestValidator v = new TestValidator();
        fm.setValidator(v);
        ValueModel vm = fm.getValueModel("simpleProperty");
        // starting at 2: constructing a formmodel + creating valueModel
        int expectedCount = 2;


        final DefaultValidationMessage message1 = new DefaultValidationMessage("simpleProperty", Severity.ERROR, "1");


        fm.raiseValidationMessage(message1);
        assertEquals(expectedCount++, v.count);
        assertEquals(1, r.getMessageCount());
        assertContainsMessage("1", r.getMessages());


        fm.clearValidationMessage(message1);
        assertEquals(0, r.getMessageCount());


        fm.raiseValidationMessage(message1);
        fm.setValidating(false);
        assertEquals(0, r.getMessageCount());


        fm.setValidating(true);
        assertEquals(expectedCount++, v.count);
        assertEquals(1, r.getMessageCount());


        v.results = getValidationResults("2");
        vm.setValue("3");
        assertEquals(expectedCount++, v.count);
        assertEquals(2, r.getMessageCount());


        fm.clearValidationMessage(message1);
        assertEquals(1, r.getMessageCount());

View Full Code Here

        // starting at 2: constructing a formmodel + creating valueModel
        int expectedCount = 2;
        v.results = getValidationResults("message1");
        fm.setValidator(v);


        ValueModel vm = fm.getValueModel("simpleProperty");
        assertEquals(expectedCount, v.count);
        assertEquals(1, r.getMessageCount());


        fm.setValidating(false);
        assertEquals(expectedCount++, v.count);
        assertEquals(0, r.getMessageCount());


        fm.setValidating(true);
        assertEquals(expectedCount, v.count);
        assertEquals(1, r.getMessageCount());


        // this will cause a binding exception
        vm.setValue(new Object());
        assertEquals(expectedCount, v.count);
        assertEquals(2, r.getMessageCount());


        fm.setValidating(false);
        assertEquals(expectedCount, v.count);
        assertEquals(0, r.getMessageCount());


        // this will cause a another binding exception
        fm.getValueModel("listProperty").setValue(new Object());
        assertEquals(expectedCount, v.count);
        assertEquals(0, r.getMessageCount());


        vm.setValue("test");
        assertEquals(expectedCount++, v.count);
        assertEquals(0, r.getMessageCount());


        fm.setValidating(true);
        assertEquals(expectedCount++, v.count);

View Full Code Here

    }


    public void testSetThrowsExceptionRaisesValidationMessage() {
        final ErrorBean errorBean = new ErrorBean();
        DefaultFormModel fm = (DefaultFormModel) getFormModel(errorBean);
        final ValueModel vm = fm.getValueModel("error");


        vm.setValue("test");
        assertEquals(1, fm.getValidationResults().getMessageCount());


        errorBean.errorToThrow = null;
        vm.setValue("test");
        assertEquals(0, fm.getValidationResults().getMessageCount());
    }

View Full Code Here

        DefaultFormModel fm = (DefaultFormModel) getFormModel(new TestBean());
        TestConversionService cs = new TestConversionService();
        cs.executer = new ConversionExecutor(String.class, Integer.class, new ExceptionConverter(String.class,
                Integer.class));
        fm.setConversionService(cs);
        final ValueModel vm = fm.getValueModel("simpleProperty", Integer.class);


        vm.setValue("test");
        assertEquals(1, fm.getValidationResults().getMessageCount());
    }

View Full Code Here

        // no additional asserts, this test should just not throw an exception!
    }


    public void testDefaultFormModelFromValueModel() throws Exception {
        TestBean testBean = new TestBean();
        ValueModel valueModel = new ValueHolder(testBean);
        DefaultFormModel model = new DefaultFormModel(valueModel);
        assertEquals(testBean, model.getFormObject());
    }

View Full Code Here

     */
    protected AbstractMasterForm(HierarchicalFormModel parentFormModel, String property, String formId, Class detailType) {
        super( formId );
        this.detailType = detailType;


        ValueModel propertyVM = parentFormModel.getValueModel( property );


        // Now construct the dirty tracking model
        Class collectionType = getMasterCollectionType( propertyVM );


        collectionVM = new DirtyTrackingDCBCVM( propertyVM, collectionType );
        ValidatingFormModel formModel = FormModelHelper.createChildPageFormModel( parentFormModel, formId,
                collectionVM);
        setFormModel( formModel );


        // Install a handler to detect when the parents form model changes
        propertyVM.addValueChangeListener(parentFormPropertyChangeHandler);
    }

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        // Now we need to construct a subform and value model to handle the
        // detail elements of this master table


        Object detailObject = BeanUtils.instantiateClass(detailType);
        ValueModel valueHolder = new ValueHolder( detailObject );
        detailForm = createDetailForm( getFormModel(), valueHolder, masterEventList);


        // Start the form disabled and not validating until the form is actually in use.
        detailForm.setEnabled( false );
        detailForm.getFormModel().setValidating( false );

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        };
        Object[] valuesToTest = new Object[] {"1", "2", null, "3"};
        testSettingAndGetting(valuesToTest, getValueDirectly, setValueDirectly);


        list.add("a");
        ValueModel vm2 = pas.getPropertyValueModel("listProperty[1]");
        assertEquals("a", vm2.getValue());


        try {
            List newList = new ArrayList();
            pas.getPropertyValueModel("listProperty").setValue(newList);
            if (isStrictNullHandlingEnabled())

View Full Code Here

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