QueryMethods.QueryMethod (MPS.Core (JetBrains MPS 2019.1.0))

Type Parameters:

T -

Enclosing class:

QueryMethods
```
public static interface QueryMethods.QueryMethod<T>
```
Handy wrapper around Method to have typed return value and streamlined error message for errors.

- Method Summary
  
  All Methods Instance Methods Abstract Methods
  Modifier and Type Method Description
  
  T invoke(Object contextObject)

- Method Detail
  - invoke
```
T invoke(Object contextObject)
  throws QueryMethods.IllegalQueryMethodException,
         InvocationTargetException
```
    Parameters:
    
    contextObject - whatever query method takes as an argument
    
    Returns:
    
    whatever query method returns
    
    Throws:
    
    QueryMethods.IllegalQueryMethodException - if there were troubles accessing the method (missing, wrong arguments, non-accessible, etc).
    
    InvocationTargetException - if there were exceptions in the user-supplied method implementation code.