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A library for settings and parameterization of objects. Key features are support for data types, help for settings and parameters, annotations for ease of use. Settings and parameters both are Clonable and Serializable. More features for settings such as parsing a settingsfile, being observable, readonliness, caching etc. are available. The library contains javacc generated parsers for syntax support for properties, multi valued properties, parameterized objects and multi valued parameters.

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package com.vectorprint.configuration.annotation;

/*-
 * #%L
 * Config
 * %%
 * Copyright (C) 2015 - 2018 VectorPrint
 * %%
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * #L%
 */


import com.vectorprint.configuration.EnhancedMap;
import com.vectorprint.configuration.binding.settings.EnhancedMapBindingFactory;
import com.vectorprint.configuration.binding.settings.EnhancedMapBindingFactoryImpl;
import com.vectorprint.configuration.binding.settings.SpecificClassValidator;
import com.vectorprint.configuration.decoration.AbstractPropertiesDecorator;
import com.vectorprint.configuration.decoration.HelpSupportedProperties;
import com.vectorprint.configuration.decoration.ParsingProperties;

import java.lang.annotation.Documented;
import java.lang.annotation.ElementType;
import java.lang.annotation.Inherited;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;

@Documented
@Inherited
@Target({ElementType.FIELD})
@Retention(RetentionPolicy.RUNTIME)
public @interface Feature {
   /**
    * A feature is an implementation of the decorator pattern for adding features to properties. This
    * requires a constructor with {@link EnhancedMap} as argument.
    * @return 
    */
   Class clazz();
   /**
    * decorators may need input for their functionality, a URL to retrieve help info for example.
    * setting this argument requires a constructor with {@link EnhancedMap} and URL[] as arguments.
    * @see ParsingProperties
    * @see HelpSupportedProperties
    * @return 
    */
   String[] urls() default {};
   
   /**
    * @see ParsingProperties
    * @see SpecificClassValidator
    * @return 
    */
   Class factoryClass() default EnhancedMapBindingFactoryImpl.class;
   
}