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;
    } 
  }