Examples of org.apache.tapestry.Binding

org.apache.tapestry.Binding
A binding is a connection between a component and its container (another component), that allows the embedded component to gain access to resources defined by the container. Resources can represent any kind of value that can be obtained from the parent component, but is often a JavaBean property that can be read and updated. Different implementations of Binding as used to access different kinds of resources of the container.
A binding ultimately must provide access to the underlying annotations. In most cases, there are no annotations, but bindings that ultimate invoke methods or read and update fields must provide access to those annotations.

        ComponentResources resources = newComponentResources(bean);
        Location l = mockLocation();


        replay();


        Binding binding = _factory.newBinding(
                "test binding",
                resources,
                null,
                "stringHolderMethod().stringValue()",
                l);


        assertSame(binding.getBindingType(), String.class);


        bean.getStringHolder().setValue("first");


        assertEquals(binding.get(), "first");


        try
        {
            binding.set("read-only");
            unreachable();
        }
        catch (TapestryException ex)
        {
            assertEquals(

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        ComponentResources resources = newComponentResources(bean);
        Location l = mockLocation();


        replay();


        Binding binding = _factory.newBinding("test binding", resources, null, "intValue", l);


        assertSame(binding.getBindingType(), int.class);


        bean.setIntValue(1);


        assertEquals(binding.get(), 1);


        binding.set(2);


        assertEquals(bean.getIntValue(), 2);


        verify();
    }

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        ComponentResources resources = newComponentResources(bean);
        Location l = mockLocation();


        replay();


        Binding binding = _factory.newBinding("test binding", resources, null, "readOnly", l);


        assertEquals(binding.get(), "ReadOnly");


        try
        {
            binding.set("fail");
            unreachable();
        }
        catch (TapestryException ex)
        {
            assertEquals(

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        ComponentResources resources = newComponentResources(bean);
        Location l = mockLocation();


        replay();


        Binding binding = _factory.newBinding("test binding", resources, null, "writeOnly", l);


        binding.set("updated");


        assertEquals(bean._writeOnly, "updated");


        try
        {
            assertEquals(binding.get(), "ReadOnly");
            unreachable();
        }
        catch (TapestryException ex)
        {
            assertEquals(

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        train_getComponent(resources, component);


        replay();


        Binding binding = _factory.newBinding(description, resources, null, "this", l);


        assertSame(binding.get(), component);


        verify();
    }

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        String description = "my description";
        ComponentResources resources = mockComponentResources();


        replay();


        Binding binding = _factory.newBinding(description, resources, null, expression, l);


        assertEquals(binding.get(), expected);


        verify();
    }

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    @Test
    public void parameter_with_default() throws Exception
    {
        final BindingSource source = mockBindingSource();
        final InternalComponentResources resources = mockInternalComponentResources();
        final Binding binding = mockBinding();
        String boundValue = "howdy!";


        MutableComponentModel model = mockMutableComponentModel();


        model.addParameter("value", false, TapestryConstants.PROP_BINDING_PREFIX);

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{
    @Test
    public void expression_has_no_prefix()
    {
        BindingFactory factory = mockBindingFactory();
        Binding binding = mockBinding();
        ComponentResources container = mockComponentResources();
        ComponentResources component = mockComponentResources();
        Location l = mockLocation();


        String defaultPrefix = "def";
        String description = "descrip";
        String expression = "full expression";


        train_newBinding(factory, description, container, component, expression, l, binding);


        replay();


        Map<String, BindingFactory> map = newMap();


        map.put(defaultPrefix, factory);


        BindingSource source = new BindingSourceImpl(map);


        Binding actual = source.newBinding(
                description,
                container,
                component,
                defaultPrefix,
                expression,

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    @Test
    public void expression_prefix_not_in_configuration()
    {
        BindingFactory factory = mockBindingFactory();
        Binding binding = mockBinding();
        ComponentResources container = mockComponentResources();
        ComponentResources component = mockComponentResources();
        Location l = mockLocation();


        String defaultPrefix = "def";
        String description = "descrip";
        String expression = "javascript:not-a-known-prefix";


        train_newBinding(factory, description, container, component, expression, l, binding);


        replay();


        Map<String, BindingFactory> map = newMap();


        map.put(defaultPrefix, factory);


        BindingSource source = new BindingSourceImpl(map);


        Binding actual = source.newBinding(
                description,
                container,
                component,
                defaultPrefix,
                expression,

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    @Test
    public void known_prefix()
    {
        BindingFactory factory = mockBindingFactory();
        Binding binding = mockBinding();
        ComponentResources container = mockComponentResources();
        ComponentResources component = mockComponentResources();
        Location l = mockLocation();


        String defaultPrefix = "literal";
        String description = "descrip";


        // The "prop:" prefix is stripped off ...
        train_newBinding(factory, description, container, component, "myproperty", l, binding);


        replay();


        Map<String, BindingFactory> map = newMap();


        map.put("prop", factory);


        BindingSource source = new BindingSourceImpl(map);


        Binding actual = source.newBinding(
                description,
                container,
                component,
                defaultPrefix,
                "prop:myproperty",

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Related Classes of org.apache.tapestry.Binding

org.apache.tapestry.internal.bindings.BindingFactoryTest

org.apache.tapestry.internal.bindings.PropBindingFactoryTest

org.apache.tapestry.internal.bindings.ValidateBindingFactoryTest

org.apache.tapestry.internal.services.BindingSourceImplTest

org.apache.tapestry.internal.services.ComponentDefaultProviderImplTest

org.apache.tapestry.internal.services.InheritedBindingTest

org.apache.tapestry.internal.services.PageElementFactoryImpl

org.apache.tapestry.internal.services.PageLoaderProcessor

org.apache.tapestry.internal.services.ParameterWorker

org.apache.tapestry.internal.services.ParameterWorkerTest

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