Examples of org.codehaus.preon.binding.Binding

org.codehaus.preon.binding.Binding
The interface of objects that are able to load object state from a {@link BitBuffer} and store object state into a{@link BitBuffer}. Note the difference with a {@link Codec}. A {@link Codec} is capable of creating newobjects. {@link Binding Bindings} are expected to unload their data into an existing object.

The {@link Binding} abstraction is key to the inner workings of the {@link org.codehaus.preon.codec.ObjectCodecFactory}. The reason why it is a public interface instead of an internal one is to allow you to plugin in other kinds of Binding. The typical example here is the {@link ConditionalBindingFactory}. This {@link BindingFactory} creates {@link Binding Binding} instances that respect conditions set as annotations on {@link Fields}.
@author Wilfred Springer

    public Reference<Resolver> selectAttribute(String name)
            throws BindingException {
        if ("outer".equals(name)) {
            return new OuterReference(outer, this);
        } else {
            Binding binding = bindingsByName.get(name);


            if (binding == null) {
                throw new BindingException(
                        "Failed to create binding for bound data called "
                                + name);

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            if ("outer".equals(name)) {
                return outer;
            } else {


                if (bindingsByName.containsKey(name)) {
                    Binding binding = bindingsByName.get(name);


                    if (context == null) {
                        StringBuilderDocument document = new StringBuilderDocument();
                        // TODO:
//                        binding.describe(new ParaContentsDocument(document));
                        throw new BindingException("Failed to resolve "
                                + document.toString()
                                + " due to incomplete context.");
                    }


                    try {
                        return binding.get(context);
                    } catch (IllegalArgumentException e) {
                        throw new BindingException("Failed to bind to "
                                + binding.getName(), e);
                    } catch (IllegalAccessException e) {
                        throw new BindingException("Forbidded to access "
                                + binding.getName(), e);
                    }
                } else {
                    throw new BindingException("Failed to resolve " + name
                            + " on " + context.getClass());
                }

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            if (!Modifier.isStatic(field.getModifiers())
                    && !field.isSynthetic()) {
                Codec<?> codec = codecFactory.create(field, field.getType(),
                        context);
                if (codec != null) {
                    Binding binding = bindingFactory.create(field, field,
                            codec, context, reference);
                    context.add(field.getName(), binding);
                }
            }
        }

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Related Classes of org.codehaus.preon.binding.Binding

org.codehaus.preon.codec.BindingsContext

org.codehaus.preon.codec.BindingsContext$BindingsResolver

org.codehaus.preon.codec.ObjectCodecFactory

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