Package org.osgi.service.component.annotations

Enum ReferencePolicy

    • Enum Constant Summary

      Enum Constants 
      Enum Constant Description
      DYNAMIC
      The dynamic policy is slightly more complex since the component implementation must properly handle changes in the set of bound services.
      STATIC
      The static policy is the most simple policy and is the default policy.

    • Method Summary

      All Methods Static Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      java.lang.String toString()  
      static ReferencePolicy valueOf​(java.lang.String name)
      Returns the enum constant of this type with the specified name.
      static ReferencePolicy[] values()
      Returns an array containing the constants of this enum type, in the order they are declared.

      • Methods inherited from class java.lang.Enum

        compareTo, equals, getDeclaringClass, hashCode, name, ordinal, valueOf

      • Methods inherited from class java.lang.Object

        getClass, notify, notifyAll, wait, wait, wait

    • Enum Constant Detail

      • STATIC

        public static final ReferencePolicy STATIC
        The static policy is the most simple policy and is the default policy. A component instance never sees any of the dynamics. Component configurations are deactivated before any bound service for a reference having a static policy becomes unavailable. If a target service is available to replace the bound service which became unavailable, the component configuration must be reactivated and bound to the replacement service.

      • DYNAMIC

        public static final ReferencePolicy DYNAMIC
        The dynamic policy is slightly more complex since the component implementation must properly handle changes in the set of bound services. With the dynamic policy, SCR can change the set of bound services without deactivating a component configuration. If the component uses method injection to access services, then the component instance will be notified of changes in the set of bound services by calls to the bind and unbind methods.

    • Method Detail

      • values

        public static ReferencePolicy[] values()
        Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows: 
        for (ReferencePolicy c : ReferencePolicy.values())
    System.out.println(c);
        Returns:
        an array containing the constants of this enum type, in the order they are declared

      • valueOf

        public static ReferencePolicy valueOf​(java.lang.String name)
        Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)
        Parameters:
        name - the name of the enum constant to be returned.
        Returns:
        the enum constant with the specified name
        Throws:
        java.lang.IllegalArgumentException - if this enum type has no constant with the specified name
        java.lang.NullPointerException - if the argument is null

      • toString

        public java.lang.String toString()
        Overrides:
        toString in class java.lang.Enum<ReferencePolicy>