Package org.apache.tapestry5.commons

Interface MappedConfiguration<K,V>

  • All Known Implementing Classes:
    ValidatingMappedConfigurationWrapper
    public interface MappedConfiguration<K,V>
    Object passed into a service contributor method that allows the method provide contributed values to the service's configuration. A service can collect contributions in three different ways:
    • As an un-ordered collection of values
    • As an ordered list of values (where each value has a unique id, pre-requisites and post-requisites)
    • As a map of keys and values
    The service defines the type of contribution, in terms of a base class or service interface. Contributions must be compatible with the type.

    • Method Summary

      All Methods Instance Methods Abstract Methods 
      Modifier and Type Method Description
      void add(K key, V value)
      Adds a keyed object to the service's contribution.
      void addInstance(K key, Class<? extends V> clazz)
      Adds a keyed object as an instantiated instance (with dependencies injected) of a class.
      void override(K key, V value)
      Overrides an existing contribution by its key.
      void overrideInstance(K key, Class<? extends V> clazz)
      Overrides an existing contribution with a new instance.

    • Method Detail

      • add

        void add(K key,
         V value)
        Adds a keyed object to the service's contribution.
        Parameters:
        key - unique id for the value
        value - to contribute
        Throws:
        IllegalArgumentException - if key is not unique

      • override

        void override(K key,
              V value)
        Overrides an existing contribution by its key.
        Parameters:
        key - unique id of value to override
        value - new value, or null to remove the key entirely
        Since:
        5.1.0.0

      • addInstance

        void addInstance(K key,
                 Class<? extends V> clazz)
        Adds a keyed object as an instantiated instance (with dependencies injected) of a class. When the value type is an interface and the class to be contributed is a local file, then a reloadable proxy for the value class will be created and contributed.
        Parameters:
        key - unique id for the value
        clazz - class to instantiate and contribute
        Since:
        5.1.0.0

      • overrideInstance

        void overrideInstance(K key,
                      Class<? extends V> clazz)
        Overrides an existing contribution with a new instance. When the value type is an interface and the class to be contributed is a local file, then a reloadable proxy for the value class will be created and contributed.
        Parameters:
        key - unique id of value to override
        clazz - class to instantiate as override