Examples with ComputedValue org.apache.tapestry5.plastic.ComputedValue used on opensource projects

Example 1 with ComputedValue

use of org.apache.tapestry5.plastic.ComputedValue in project tapestry-5 by apache.

the class AssetInjectionProvider method provideInjection.

public boolean provideInjection(PlasticField field, ObjectLocator locator, MutableComponentModel componentModel) {
    Path path = field.getAnnotation(Path.class);
    if (path == null) {
        return false;
    }
    final String assetPath = path.value();
    final String libraryName = componentModel.getLibraryName();
    ComputedValue<Asset> computedAsset = new ComputedValue<Asset>() {

        public Asset get(InstanceContext context) {
            ComponentResources resources = context.get(ComponentResources.class);
            // a different library name than the subclass).
            return assetSource.getComponentAsset(resources, assetPath, libraryName);
        }
    };
    field.injectComputed(computedAsset);
    return true;
}

Example 2 with ComputedValue

use of org.apache.tapestry5.plastic.ComputedValue in project tapestry-5 by apache.

the class MixinWorker method createMixinFieldProvider.

private ComputedValue<FieldConduit<Object>> createMixinFieldProvider(final String fieldName, final String mixinClassName) {
    return new ComputedValue<FieldConduit<Object>>() {

        public FieldConduit get(InstanceContext context) {
            ComponentResources resources = context.get(ComponentResources.class);
            final InternalComponentResources icr = (InternalComponentResources) resources;
            return new ReadOnlyComponentFieldConduit(resources, fieldName) {

                public Object get(Object instance, InstanceContext context) {
                    return icr.getMixinByClassName(mixinClassName);
                }
            };
        }
    };
}

Example 3 with ComputedValue

use of org.apache.tapestry5.plastic.ComputedValue in project tapestry-5 by apache.

the class BindParameterWorker method convertFieldIntoContainerBoundParameter.

private void convertFieldIntoContainerBoundParameter(PlasticField field) {
    BindParameter annotation = field.getAnnotation(BindParameter.class);
    field.claim(annotation);
    final String[] possibleNames = annotation.value();
    final String fieldTypeName = field.getTypeName();
    final String fieldName = field.getName();
    ComputedValue<FieldConduit<Object>> computedConduit = new ComputedValue<FieldConduit<Object>>() {

        public FieldConduit<Object> get(InstanceContext context) {
            ComponentResources resources = context.get(ComponentResources.class);
            try {
                return createConduit(resources, fieldTypeName, fieldName, possibleNames);
            } catch (Exception ex) {
                throw new TapestryException(String.format("Failure binding parameter field '%s' of mixin %s (type %s): %s", fieldName, resources.getCompleteId(), resources.getComponentModel().getComponentClassName(), ExceptionUtils.toMessage(ex)), ex);
            }
        }
    };
    field.setComputedConduit(computedConduit);
}

Example 4 with ComputedValue

use of org.apache.tapestry5.plastic.ComputedValue in project tapestry-5 by apache.

the class EnvironmentalWorker method transform.

private void transform(final String componentClassName, PlasticField field) {
    Environmental annotation = field.getAnnotation(Environmental.class);
    field.claim(annotation);
    final String fieldName = field.getName();
    final Class fieldType = classCache.forName(field.getTypeName());
    final boolean required = annotation.value();
    ComputedValue<FieldConduit<Object>> provider = new ComputedValue<FieldConduit<Object>>() {

        public FieldConduit<Object> get(InstanceContext context) {
            return new EnvironmentalConduit(componentClassName, fieldName, fieldType, required);
        }

        public void set(Object instance, InstanceContext context, Object newValue) {
            throw new RuntimeException(String.format("Field %s of component %s is read only.", fieldName, componentClassName));
        }
    };
    field.setComputedConduit(provider);
}

Example 5 with ComputedValue

use of org.apache.tapestry5.plastic.ComputedValue in project tapestry-5 by apache.

the class ParameterWorker method convertFieldIntoParameter.

private void convertFieldIntoParameter(PlasticClass plasticClass, MutableComponentModel model, PlasticField field) {
    Parameter annotation = field.getAnnotation(Parameter.class);
    String fieldType = field.getTypeName();
    String parameterName = getParameterName(field.getName(), annotation.name());
    field.claim(annotation);
    model.addParameter(parameterName, annotation.required(), annotation.allowNull(), annotation.defaultPrefix(), annotation.cache());
    MethodHandle defaultMethodHandle = findDefaultMethodHandle(plasticClass, parameterName);
    ComputedValue<FieldConduit<Object>> computedParameterConduit = createComputedParameterConduit(parameterName, fieldType, annotation, defaultMethodHandle);
    field.setComputedConduit(computedParameterConduit);
}