Sync git svn branch with SVN repository r33166.

[simantics/platform.git] / bundles / org.simantics.document.server / src / org / simantics / document / server / Functions.java

diff --git a/bundles/org.simantics.document.server/src/org/simantics/document/server/Functions.java b/bundles/org.simantics.document.server/src/org/simantics/document/server/Functions.java
index 3892b50151a94b036d3a0a3460119cc3d6beaf85..2ba85b733adc1d10d8888afe9cb0f27f6161c1bd 100644 (file)
--- a/bundles/org.simantics.document.server/src/org/simantics/document/server/Functions.java
+++ b/bundles/org.simantics.document.server/src/org/simantics/document/server/Functions.java
@@ -185,9 +185,18 @@ public class Functions {
        return Variables.getVariable(graph, uri);\r
     }\r
     \r
+    public static Variable stateVariable(ReadGraph graph, Variable self) throws DatabaseException {\r
+       Variable session = graph.syncRequest(new ProxySessionRequest(self));\r
+       if (session == null)\r
+               throw new DatabaseException("No state for " + self.getURI(graph));\r
+       return session.getPossibleChild(graph, "__scl__");\r
+    }\r
+    \r
     @SCLValue(type = "ReadGraph -> Resource -> Variable -> Variable")\r
     public static Variable state(ReadGraph graph, Resource converter, Variable context) throws DatabaseException {\r
        Variable session = graph.syncRequest(new ProxySessionRequest(context));\r
+       if (session == null)\r
+           throw new DatabaseException("No state for " + context.getURI(graph));\r
        return session.getPossibleChild(graph, "__scl__");\r
     }\r
 \r