IPreProcessingAction (pentaho-platform-api 9.3.0.0-424 API)

All Superinterfaces:

IAction
```
public interface IPreProcessingAction
extends IAction
```
Allows an Action to do some preliminary work prior to execution. This API also allows an Action to fail early and thereby not actually execute. Typically this is used in combination with IDefinitionAwareAction to verify that the required inputs are provided prior to execution.

Since:

3.6

Author:

aphillips

See Also:

IAction, IDefinitionAwareAction

- Method Summary
  
  All Methods Instance Methods Abstract Methods
  Modifier and Type Method Description
  
  void doPreExecution()
  This method is called on an Action just prior to execution.
  - Methods inherited from interface org.pentaho.platform.api.action.IAction
    execute, isExecutionSuccessful

- Method Detail
  - doPreExecution
```
void doPreExecution()
             throws ActionPreProcessingException
```
    This method is called on an Action just prior to execution. An Action can fail early for any reason here by throwing an exception. If an exception is thrown here, actual execution of the Action will not occur. If you need to do pre-execution validation of inputs, see IDefinitionAwareAction
    
    Throws:
    
    ActionPreProcessingException - if the Action is not able to proceed with execution