+ public static Type getSCLType(ReadGraph graph, RuntimeEnvironment runtimeEnvironment, String typeText) throws DatabaseException {
+ try {
+ return Environments.getType(runtimeEnvironment.getEnvironment(), typeText);
+ } catch (SCLExpressionCompilationException e) {
+ throw new DatabaseException(e);
+ }
+ }
+
+ public static Type getSCLType(ReadGraph graph, Resource resource, String typeText) throws DatabaseException {
+ try {
+ RuntimeEnvironment runtimeEnvironment = graph.syncRequest(new RuntimeEnvironmentRequest(resource));
+ return Environments.getType(runtimeEnvironment.getEnvironment(), typeText);
+ } catch (SCLExpressionCompilationException e) {
+ throw new DatabaseException(e);
+ }
+ }
+
+ public static Resource getPossibleChild(ReadGraph graph, Resource resource, String name) throws DatabaseException {
+ return graph.sync(new PossibleChild(resource, name));
+ }
+
+ public static Resource getPossibleChild(ReadGraph graph, Resource resource, Resource type, String name) throws DatabaseException {
+ Resource child = graph.sync(new PossibleChild(resource, name));
+ if(child == null) return null;
+ if(!graph.isInstanceOf(child, type)) return null;
+ return child;
+ }