New implementation of server state based on StandardNodeManager

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

diff --git a/bundles/org.simantics.document.server/src/org/simantics/document/server/state/StateVariableBuilder.java b/bundles/org.simantics.document.server/src/org/simantics/document/server/state/StateVariableBuilder.java
new file mode 100644 (file)
index 0000000..404a66e
--- /dev/null
+++ b/bundles/org.simantics.document.server/src/org/simantics/document/server/state/StateVariableBuilder.java
@@ -0,0 +1,23 @@
+package org.simantics.document.server.state;
+
+import org.simantics.db.ReadGraph;
+import org.simantics.db.exception.DatabaseException;
+import org.simantics.db.layer0.variable.NodeManagerVariableBuilder;
+import org.simantics.db.layer0.variable.NodeSupport;
+import org.simantics.document.server.state.StateNodeManager;
+import org.simantics.document.server.state.StateSessionManager;
+
+public class StateVariableBuilder extends NodeManagerVariableBuilder {
+
+       @Override
+       protected NodeSupport<?> getNodeSupport(ReadGraph graph, String sessionName) throws DatabaseException {
+               return StateSessionManager.getInstance().getOrCreateNodeSupport(graph, sessionName);
+       }
+
+       @Override
+       protected Object getRoot(ReadGraph graph, NodeSupport<?> support, String sessionName) {
+               StateNodeManager manager = (StateNodeManager)support.manager;
+               return manager.getRoot();
+       }
+
+}
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