X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=bundles%2Forg.simantics.modeling%2Fsrc%2Forg%2Fsimantics%2Fmodeling%2FImmutableComponentVariableBuilder.java;fp=bundles%2Forg.simantics.modeling%2Fsrc%2Forg%2Fsimantics%2Fmodeling%2FImmutableComponentVariableBuilder.java;h=37c882c643ffdfde1959ad2df6f55e7c32735ee8;hb=3850fec72035293b9a4ede780d01aedc5fbc9056;hp=0000000000000000000000000000000000000000;hpb=1e957fc9da518f3bef8a2c19cad72772087e1b6a;p=simantics%2Fplatform.git

diff --git a/bundles/org.simantics.modeling/src/org/simantics/modeling/ImmutableComponentVariableBuilder.java b/bundles/org.simantics.modeling/src/org/simantics/modeling/ImmutableComponentVariableBuilder.java
new file mode 100644
index 000000000..37c882c64
--- /dev/null
+++ b/bundles/org.simantics.modeling/src/org/simantics/modeling/ImmutableComponentVariableBuilder.java
@@ -0,0 +1,31 @@
+package org.simantics.modeling;
+
+import org.simantics.db.ReadGraph;
+import org.simantics.db.Resource;
+import org.simantics.db.common.procedure.adapter.TransientCacheListener;
+import org.simantics.db.common.utils.NameUtils;
+import org.simantics.db.exception.DatabaseException;
+import org.simantics.db.layer0.variable.StandardGraphChildVariable;
+import org.simantics.db.layer0.variable.StandardGraphPropertyVariable;
+import org.simantics.db.layer0.variable.Variable;
+import org.simantics.db.layer0.variable.VariableBuilder;
+import org.simantics.db.layer0.variable.VariableNode;
+
+public class ImmutableComponentVariableBuilder<Node> implements VariableBuilder<Node> {
+
+	@Override
+	public Variable buildChild(ReadGraph graph, Variable parent, VariableNode<Node> node, Resource child) throws DatabaseException {
+		if(graph.isImmutable(child)) {
+			ImmutableComponentVariableContent content = graph.syncRequest(new ImmutableComponentVariableContentRequest(child), TransientCacheListener.instance());
+			return new ImmutableComponentVariable(parent, content);
+		} else {
+			return new StandardGraphChildVariable(parent, node, child);
+		}
+	}
+
+	@Override
+	public Variable buildProperty(ReadGraph graph, Variable parent, VariableNode<Node> node, Resource subject, Resource predicate) throws DatabaseException {
+		return new StandardGraphPropertyVariable(graph, parent, node, subject, predicate);
+	}
+
+}