javax.xml.ws

## Annotation Type Action

-     @Documented
      @Retention(value=RUNTIME)
      @Target(value=METHOD)
      public @interface Action

  The `Action` annotation allows explicit association of a WS-Addressing `Action` message addressing property with `input`, `output`, and `fault` messages of the mapped WSDL operation.

  This annotation can be specified on each method of a service endpoint interface. For such a method, the mapped operation in the generated WSDL's `wsam:Action` attribute on the WSDL `input`, `output` and `fault` messages of the WSDL `operation` is based upon which attributes of the `Action` annotation have been specified. For the exact computation of `wsam:Action` values for the messages, refer to the algorithm in the JAX-WS specification.

  Example 1: Specify explicit values for `Action` message addressing property for `input` and `output` messages.

       @WebService(targetNamespace="http://example.com/numbers")
       public class AddNumbersImpl {
           @Action(
               input="http://example.com/inputAction",
               output="http://example.com/outputAction")
           public int addNumbers(int number1, int number2) {
               return number1 + number2;
           }
       }

  The generated WSDL looks like:

         <definitions targetNamespace="http://example.com/numbers" ...>
           ...
           <portType name="AddNumbersPortType">
             <operation name="AddNumbers">
               <input message="tns:AddNumbersInput" name="foo"
                 wsam:Action="http://example.com/inputAction"/>
               <output message="tns:AddNumbersOutput" name="bar"
                 wsam:Action="http://example.com/outputAction"/>
             </operation>
           </portType>
           ...
         </definitions>

  Example 2: Specify explicit value for `Action` message addressing property for only the `input` message. The `wsam:Action` values for the WSDL `output` message are computed using the algorithm in the JAX-WS specification.

       @WebService(targetNamespace="http://example.com/numbers")
       public class AddNumbersImpl {
           @Action(input="http://example.com/inputAction")
           public int addNumbers(int number1, int number2) {
               return number1 + number2;
           }
       }

  The generated WSDL looks like:

         <definitions targetNamespace="http://example.com/numbers" ...>
           ...
           <portType name="AddNumbersPortType">
             <operation name="AddNumbers">
               <input message="tns:AddNumbersInput" name="foo"
                 wsam:Action="http://example.com/inputAction" />
               <output message="tns:AddNumbersOutput" name="bar"
                 wsam:Action="http://example.com/numbers/AddNumbersPortType/AddNumbersResponse"/>
             </operation>
           </portType>
           ...
         </definitions>

  It is legitimate to specify an explicit value for `Action` message addressing property for `output` message only. In this case, `wsam:Action` value for the WSDL `input` message is computed using the algorithm in the JAX-WS specification.

  Example 3: See `FaultAction` annotation for an example of how to specify an explicit value for `Action` message addressing property for the `fault` message.

  Since:
    JAX-WS 2.1
  See Also:
    `FaultAction`

- - ### Optional Element Summary

    Optional Elements
    Modifier and Type | Optional Element and Description
    --- | ---
    `FaultAction[]` | `fault` Explicit value of the WS-Addressing `Action` message addressing property for the `fault` message(s) of the operation.
    `String` | `input` Explicit value of the WS-Addressing `Action` message addressing property for the `input` message of the operation.
    `String` | `output` Explicit value of the WS-Addressing `Action` message addressing property for the `output` message of the operation.

- - ### Element Detail

    - #### input

          public abstract String input

      Explicit value of the WS-Addressing `Action` message addressing property for the `input` message of the operation.
      Default:
        ""

    - #### output

          public abstract String output

      Explicit value of the WS-Addressing `Action` message addressing property for the `output` message of the operation.
      Default:
        ""

    - #### fault

          public abstract FaultAction[] fault

      Explicit value of the WS-Addressing `Action` message addressing property for the `fault` message(s) of the operation. Each exception that is mapped to a fault and requires an explicit WS-Addressing `Action` message addressing property, needs to be specified as a value in this property using `FaultAction` annotation.
      Default:
        {}

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