Examples of org.constretto.annotation.Configuration.required()

            if (parameterAnnotations.length != 0) {
                for (Annotation parameterAnnotation : parameterAnnotations) {
                    if (parameterAnnotation.annotationType() == Configuration.class) {
                        Configuration configurationAnnotation = (Configuration) parameterAnnotation;
                        expression = configurationAnnotation.value();
                        required = configurationAnnotation.required();
                        if (hasAnnotationDefaults(configurationAnnotation)) {
                            if (configurationAnnotation.defaultValueFactory().equals(Configuration.EmptyValueFactory.class)) {
                                defaultValue = ValueConverterRegistry.convert(parameterTargetClass, parameterTargetClass, new CPrimitive(configurationAnnotation.defaultValue()));
                            } else {
                                ConfigurationDefaultValueFactory valueFactory = configurationAnnotation.defaultValueFactory().newInstance();

                                    field.set(objectToConfigure, ValueConverterRegistry.convert(fieldType, fieldType, new CPrimitive(configurationAnnotation.defaultValue())));
                                } else {
                                    ConfigurationDefaultValueFactory valueFactory = configurationAnnotation.defaultValueFactory().newInstance();
                                    field.set(objectToConfigure, valueFactory.getDefaultValue());
                                }
                            } else if (configurationAnnotation.required()) {
                                throw new ConstrettoException("Missing value or default value for expression [" + expression + "] for field [" + field.getName() + "], in class [" + objectToConfigure.getClass().getName() + "] with tags " + currentTags + ".");
                            }
                        }
                    } else if (field.isAnnotationPresent(Tags.class)) {
                        field.setAccessible(true);

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