Class ViatraQueryRuntimeHelper


  • public class ViatraQueryRuntimeHelper
    extends java.lang.Object
    Helper functions for dealing with the EMF objects with VIATRA Queries.
    Since:
    0.9
    • Method Summary

      All Methods Static Methods Concrete Methods 
      Modifier and Type Method Description
      static org.eclipse.emf.ecore.EStructuralFeature getFeature​(java.lang.Object o, java.lang.String featureName)
      Get the structural feature with the given name of the given object.
      static java.lang.String getMessage​(IPatternMatch match, java.lang.String messageFormat)
      Returns the message for the given match using the given format.
      static java.lang.String getMessage​(IPatternMatch match, java.lang.String messageFormat, java.util.function.Function<java.lang.Object,​java.lang.String> parameterValueTransformer)
      Returns the message for the given match using the given format while transforming values with the given function.
      static java.lang.String prettyPrintEMFType​(java.lang.Object typeObject)
      Gives a human-readable name of an EMF type.
      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
    • Method Detail

      • prettyPrintEMFType

        public static java.lang.String prettyPrintEMFType​(java.lang.Object typeObject)
        Gives a human-readable name of an EMF type.
      • getFeature

        public static org.eclipse.emf.ecore.EStructuralFeature getFeature​(java.lang.Object o,
                                                                          java.lang.String featureName)
        Get the structural feature with the given name of the given object.
        Parameters:
        o - the object (must be an EObject)
        featureName - the name of the feature
        Returns:
        the EStructuralFeature of the object or null if it can not be found
      • getMessage

        public static java.lang.String getMessage​(IPatternMatch match,
                                                  java.lang.String messageFormat)
        Returns the message for the given match using the given format. The format string can refer to the value of parameter A of the match with $A$ and even access features of A (if it's an EObject), e.g. $A.id$.

        If the selected parameter does not exist, the string "[no such parameter]" is added

        If no feature is defined, but A has a feature called "name", then its value is used.

        If the selected feature does not exist, A.toString() is added.

        If the selected feature is null, the string "null" is added.

        Parameters:
        match - cannot be null!
        messageFormat - cannot be null!
      • getMessage

        public static java.lang.String getMessage​(IPatternMatch match,
                                                  java.lang.String messageFormat,
                                                  java.util.function.Function<java.lang.Object,​java.lang.String> parameterValueTransformer)
        Returns the message for the given match using the given format while transforming values with the given function. The format string can refer to the value of parameter A of the match with $A$ and even access features of A (if it's an EObject), e.g. $A.id$. The function will be called to compute the final string representation of the values selected by the message format.

        If the selected parameter does not exist, the string "[no such parameter]" is added

        If no feature is defined, but A has a feature called "name", then its value is passed to the function.

        If the selected feature does not exist, A is passed to the function.

        If the selected feature is null, the string "null" is added.

        Parameters:
        match - cannot be null!
        messageFormat - cannot be null!
        parameterValueTransformer - cannot be null!
        Since:
        2.0