AbstractConfiguration2 class

The AbstractConfiguration2 class is a default implementation of the Configuration2 interface which stores the properties in a Map. This class is abstract but it has no abstract methods. The following protected methods can be used to define the supported properties:

• AbstractConfiguration2.addProperty(String, Class, Object): allows to define a property of a specified key, the type of the property which must be of one of the supported supported property types, and its default value
• AbstractConfiguration2.addProperty(String, Class, Object, boolean): allows to define a property of a specified key, the property type, and a boolean which can be set to true if the setter of the property will use the custom AbstractConfiguration2.setCustomPropertyValue(String, Object) (this allows to define properties of types which are not of one of the default supported property types.

Example

Basic example

      public class ConcreteConfiguration extends AbstractConfiguration2 {
        private static ConcreteConfiguration conf = null;

        protected ConcreteConfiguration2Impl() {
          addProperty("propBool", Boolean.TYPE, false);
          addProperty("propInt", Integer.class, 1);
          addProperty("propFile", File.class, null);
        }
      
        public static ConcreteConfiguration getInstance() {
          if (conf == null) {
            conf = new ConcreteConfiguration();      
        }      
          return conf;
        } 
      }

Example with custom property setters

      public class ConcreteConfiguration extends AbstractConfiguration2 {
        private static ConcreteConfiguration conf = null;

        protected ConcreteConfiguration2Impl() {
          addProperty("propBool", Boolean.TYPE, false);
          addProperty("propInt", Integer.class, 1);
          addProperty("propList", List.class, null, true);
        }
      
        protected void setCustomPropertyValue(String key, Object value) {
          if (key.equals("propList")) {
            propertiesValues.get("propList").setValue(value);
          }
        }

        protected Object getCustomPropertyValue(String key) {
          if (key.equals("propList")) {
            return propertiesValues.get("propList").getValue();
          } else {
            return null;
          }
        }      
      
        public static ConcreteConfiguration getInstance() {
          if (conf == null) {
            conf = new ConcreteConfiguration();      
          }      
          return conf;
        } 
      }