--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graal/com.oracle.graal.truffle/src/com/oracle/graal/truffle/TruffleCache.java	Fri Mar 28 08:39:32 2014 +0100
@@ -0,0 +1,42 @@
+/*
+ * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+package com.oracle.graal.truffle;
+
+import com.oracle.graal.api.code.*;
+import com.oracle.graal.api.meta.*;
+import com.oracle.graal.graph.*;
+import com.oracle.graal.nodes.*;
+import com.oracle.graal.phases.common.*;
+
+public interface TruffleCache {
+
+    /**
+     * Creates the graph for the root method, i.e. {@link OptimizedCallTarget#executeHelper}.
+     */
+    StructuredGraph createRootGraph();
+
+    /**
+     * Returns a cached graph for a method with given arguments.
+     */
+    StructuredGraph lookup(final ResolvedJavaMethod method, final NodeInputList<ValueNode> arguments, final Assumptions assumptions, final CanonicalizerPhase finalCanonicalizer);
+}