Package org.int4.dirk.spi.instantiation

Enum Resolution

  • All Implemented Interfaces:
    java.io.Serializable, java.lang.Comparable<Resolution>
    public enum Resolution
extends java.lang.Enum<Resolution>
    Resolution determines how a dependency should be treated by an injector. Eager resolution types are enforced at registration time, while lazy resolutions are only enforced at instantiation time.

    • Enum Constant Summary

      Enum Constants 
      Enum Constant Description
      EAGER_ANY
      Restricts the dependency to be non-circular.
      EAGER_ONE
      Restricts the dependency to be non-circular, properly scoped (a proxy may be required), and the dependency must result in a single match.
      LAZY
      No restrictions are placed upon the dependency at registration time.

    • Method Summary

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

      • Methods inherited from class java.lang.Enum

        clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

      • Methods inherited from class java.lang.Object

        getClass, notify, notifyAll, wait, wait, wait

    • Enum Constant Detail

      • LAZY

        public static final Resolution LAZY
        No restrictions are placed upon the dependency at registration time.

        This type will never result in problems resolving circular dependencies or scope conflicts. If requirements are not met when an instance needs to be constructed with this resolution type an exception will be thrown indicating the missing requirements.

      • EAGER_ONE

        public static final Resolution EAGER_ONE
        Restricts the dependency to be non-circular, properly scoped (a proxy may be required), and the dependency must result in a single match.

        If there are no matching dependencies then the type cannot be registered unless the injection target is optional. If there are more matching dependencies the type cannot be registered. If the dependency is circular or there is a scope conflict that cannot be resolved, the type cannot be registered.

      • EAGER_ANY

        public static final Resolution EAGER_ANY
        Restricts the dependency to be non-circular.

        If the dependency is circular, the type cannot be registered.

    • Method Detail

      • values

        public static Resolution[] 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 (Resolution c : Resolution.values())
    System.out.println(c);
        Returns:
        an array containing the constants of this enum type, in the order they are declared

      • valueOf

        public static Resolution 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