Examples of org.apache.tapestry5.ioc.services.PropertyAdapter

Package org.apache.tapestry5.ioc.services

Examples of org.apache.tapestry5.ioc.services.PropertyAdapter

org.apache.tapestry5.ioc.services.PropertyAdapter
Provides access to a single property within a class. Acts as an {@link org.apache.tapestry5.ioc.AnnotationProvider}; when searching for annotations, the read method (if present) is checked first, followed by the write method, followed by the underlying field (when the property name matches the field name).
Starting in release 5.2, this property may actually be a public field. @see org.apache.tapestry5.ioc.services.ClassPropertyAdapter

    return adaptorFor(propertyName).getAnnotation(annotationClass);
    }


    private PropertyAdapter adaptorFor(String name)
    {
        PropertyAdapter pa = adapters.get(name);


        if (pa == null)
            throw new IllegalArgumentException(ServiceMessages.noSuchProperty(beanType, name));


        return pa;

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    @SuppressWarnings({ "unchecked", "rawtypes" })
    public String getLabel(Object object)
    {
        final ClassPropertyAdapter classPropertyAdapter = this.propertyAccess.getAdapter(object);


        final PropertyAdapter propertyAdapter = classPropertyAdapter
                .getPropertyAdapter(labelProperty);


        final ValueEncoder encoder = this.valueEncoderSource.getValueEncoder(propertyAdapter
                .getType());


        final Object label = propertyAdapter.get(object);


        return encoder.toClient(label);
    }

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    @Test
    public void property_adapter_read_only_property()
    {
        ClassPropertyAdapter cpa = access.getAdapter(Bean.class);
        PropertyAdapter pa = cpa.getPropertyAdapter("readOnly");


        assertTrue(pa.isRead());
        assertFalse(pa.isUpdate());
        assertFalse(pa.isCastRequired());


        assertNull(pa.getWriteMethod());
        assertEquals(pa.getReadMethod(), findMethod(Bean.class, "getReadOnly"));
    }

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    @Test
    public void property_adapter_write_only_property()
    {
        ClassPropertyAdapter cpa = access.getAdapter(Bean.class);
        PropertyAdapter pa = cpa.getPropertyAdapter("writeOnly");


        assertFalse(pa.isRead());
        assertTrue(pa.isUpdate());


        assertEquals(pa.getWriteMethod(), findMethod(Bean.class, "setWriteOnly"));
        assertNull(pa.getReadMethod());
    }

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    }


    @Test
    public void get_annotation_when_annotation_not_present()
    {
        PropertyAdapter pa = access.getAdapter(AnnotatedBean.class)
                .getPropertyAdapter("readWrite");


        assertNull(pa.getAnnotation(Scope.class));
    }

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    }


    @Test
    public void get_annotation_with_annotation_on_write_method()
    {
        PropertyAdapter pa = access.getAdapter(AnnotatedBean.class).getPropertyAdapter("annotationOnWrite");


        Scope annotation = pa.getAnnotation(Scope.class);
        assertNotNull(annotation);


        assertEquals(annotation.value(), "onwrite");
    }

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    }


    @Test
    public void read_method_annotation_overrides_write_method_annotation()
    {
        PropertyAdapter pa = access.getAdapter(AnnotatedBean.class).getPropertyAdapter("annotationOnRead");


        Scope annotation = pa.getAnnotation(Scope.class);
        assertNotNull(annotation);


        assertEquals(annotation.value(), "onread");
    }

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    }


    @Test
    public void no_write_method_reading_missing_annotation()
    {
        PropertyAdapter pa = access.getAdapter(AnnotatedBean.class).getPropertyAdapter("readOnly");


        assertNull(pa.getAnnotation(Scope.class));
    }

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    }


    @Test
    public void get_annotation_will_read_field()
    {
        PropertyAdapter pa = access.getAdapter(Bean.class).getPropertyAdapter("value");


        DataType dt = pa.getAnnotation(DataType.class);


        assertNotNull(dt);
        assertEquals(dt.value(), "fred");
    }

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    }


    @Test
    public void field_annotation_overridden_by_getter_annotation()
    {
        PropertyAdapter pa = access.getAdapter(Bean.class).getPropertyAdapter("value");


        assertEquals(pa.getAnnotation(Validate.class).value(), "getter-value-overrides");
    }

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