org.eclipse.viatra.query.runtime.api.scope

Class QueryScope

java.lang.Object

org.eclipse.viatra.query.runtime.internal.apiimpl.EngineContextFactory

org.eclipse.viatra.query.runtime.api.scope.QueryScope

Direct Known Subclasses:

EMFScope

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 and Description
QueryScope()

Method Summary

Modifier and Type	Method and 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