Package org.apache.tapestry5.services.transform

## Interface TransformationSupport

-     public interface TransformationSupport

  Additional utilities, beyond `PlasticClass`, needed when transforming.
  Since:
    5.3

- - ### Method Summary

    All Methods Instance Methods Abstract Methods
    Modifier and Type | Method | Description
    --- | --- | ---
    `void` | `addEventHandler​(String eventType, int minContextValues, String operationDescription, ComponentEventHandler handler)` | Adds an event handler.
    `boolean` | `isRootTransformation()` | Returns true if the class being transformed is a root class: it does not inherit from another transformed class, but instead inherits from Object.
    `Class` | `toClass​(String typeName)` |

- - ### Method Detail

    - #### toClass

          Class toClass​(String typeName)

      Parameters:
        `typeName` - Java type name (which may be a primitive type or array, or fully qualified class name)
      Returns:
        corresponding Java Class

    - #### isRootTransformation

          boolean isRootTransformation()

      Returns true if the class being transformed is a root class: it does not inherit from another transformed class, but instead inherits from Object.
      Returns:
        true if root

    - #### addEventHandler

          void addEventHandler​(String eventType,
                               int minContextValues,
                               String operationDescription,
                               ComponentEventHandler handler)

      Adds an event handler. Added event handlers execute before calls to super-class event handlers, or calls to event handler methods.
      Parameters:
        `eventType` - type of event
        `minContextValues` - number of context values required to activate the handler
        `operationDescription` - Used with `OperationTracker` when invoking the handler
        `handler` - code to execute when the event matches