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## org.teleal.cling.model.action
Class AbstractActionExecutor

    java.lang.Object
      org.teleal.cling.model.action.AbstractActionExecutor

All Implemented Interfaces:
  ActionExecutor

Direct Known Subclasses:
  MethodActionExecutor, QueryStateVariableExecutor

    public abstract class AbstractActionExecutor

extends Object
implements ActionExecutor

Shared procedures for action executors based on an actual service implementation instance.

Author:
  Christian Bauer

Field Summary
`protected Map<ActionArgument<LocalService>,StateVariableAccessor>` | `outputArgumentAccessors`

Constructor Summary
`protected` | `AbstractActionExecutor()`
`protected` | `AbstractActionExecutor(Map<ActionArgument<LocalService>,StateVariableAccessor> outputArgumentAccessors)`

Method Summary
`void` | `execute(ActionInvocation<LocalService> actionInvocation)` Obtains the service implementation instance from the `ServiceManager`, handles exceptions.
`protected abstract void` | `execute(ActionInvocation<LocalService> actionInvocation, Object serviceImpl)`
`Map<ActionArgument<LocalService>,StateVariableAccessor>` | `getOutputArgumentAccessors()`
`protected Object` | `readOutputArgumentValues(Action<LocalService> action, Object instance)` Reads the output arguments after an action execution using accessors.
`protected void` | `setOutputArgumentValue(ActionInvocation<LocalService> actionInvocation, ActionArgument<LocalService> argument, Object result)` Sets the output argument value on the `ActionInvocation`, considers string conversion.

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Field Detail

### outputArgumentAccessors

    protected Map<ActionArgument<LocalService>,StateVariableAccessor> outputArgumentAccessors

Constructor Detail

### AbstractActionExecutor

    protected AbstractActionExecutor()

### AbstractActionExecutor

    protected AbstractActionExecutor(Map<ActionArgument<LocalService>,StateVariableAccessor> outputArgumentAccessors)

Method Detail

### getOutputArgumentAccessors

    public Map<ActionArgument<LocalService>,StateVariableAccessor> getOutputArgumentAccessors()

### execute

    public void execute(ActionInvocation<LocalService> actionInvocation)

  Obtains the service implementation instance from the `ServiceManager`, handles exceptions.

  Specified by:
    `execute` in interface `ActionExecutor`

### execute

    protected abstract void execute(ActionInvocation<LocalService> actionInvocation,
                                    Object serviceImpl)
                             throws Exception

  Throws:
    `Exception`

### readOutputArgumentValues

    protected Object readOutputArgumentValues(Action<LocalService> action,
                                              Object instance)
                                       throws Exception

  Reads the output arguments after an action execution using accessors.

  Parameters:
    `action` - The action of which the output arguments are read.
    `instance` - The instance on which the accessors will be invoked.
  Returns:
    `null` if the action has no output arguments, a single instance if it has one, an `Object[]` otherwise.
  Throws:
    `Exception`

### setOutputArgumentValue

    protected void setOutputArgumentValue(ActionInvocation<LocalService> actionInvocation,
                                          ActionArgument<LocalService> argument,
                                          Object result)
                                   throws ActionException

  Sets the output argument value on the `ActionInvocation`, considers string conversion.

  Throws:
    `ActionException`

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Copyright © 2011 Teleal GmbH, Switzerland. All Rights Reserved.