Knopflerfish OSGi 5.2.0

org.osgi.service.component.annotations
Enum ReferencePolicy

java.lang.Object
  extended by java.lang.Enum<ReferencePolicy>
      extended by org.osgi.service.component.annotations.ReferencePolicy
All Implemented Interfaces:
java.io.Serializable, java.lang.Comparable<ReferencePolicy>

public enum ReferencePolicy
extends java.lang.Enum<ReferencePolicy>

Policy for the Reference annotation.

Author:
$Id: 835125670fa25ca1205beacabbb2d4cfa5896fd4 $

Enum Constant Summary
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
 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
clone, compareTo, equals, finalize, 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 the event strategy 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>

Knopflerfish OSGi 5.2.0