Class QueryScope

  • Direct Known Subclasses:
    EMFScope, TabularIndexHost.TabularIndexScope

    public abstract class QueryScope
    extends org.eclipse.viatra.query.runtime.internal.apiimpl.EngineContextFactory
    Defines a scope for a VIATRA Query engine, which determines the set of model elements that query evaluation operates on.
    • Constructor Summary

      Constructors 
      Constructor Description
      QueryScope()  
    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      boolean isCompatibleWithQueryScope​(java.lang.Class<? extends QueryScope> queryScopeClass)
      Determines whether a query engine initialized on this scope can evaluate queries formulated against the given scope type.
      • Methods inherited from class org.eclipse.viatra.query.runtime.internal.apiimpl.EngineContextFactory

        createEngineContext
      • Methods inherited from class java.lang.Object

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

      • QueryScope

        public QueryScope()
    • Method Detail

      • isCompatibleWithQueryScope

        public boolean isCompatibleWithQueryScope​(java.lang.Class<? extends QueryScope> queryScopeClass)
        Determines whether a query engine initialized on this scope can evaluate queries formulated against the given scope type.

        Every query scope class is compatible with a query engine initialized on a scope of the same class or a subclass.

        Parameters:
        queryScopeClass - the scope class returned by invoking IQuerySpecification.getPreferredScopeClass() on a query specification
        Returns:
        true if an ViatraQueryEngine initialized on this scope can consume an IQuerySpecification