X-Git-Url: https://gerrit.simantics.org/r/gitweb?p=simantics%2Fplatform.git;a=blobdiff_plain;f=bundles%2Forg.simantics.graph%2Fsrc%2Forg%2Fsimantics%2Fgraph%2Frepresentation%2FExtensions.java;h=375fb1416899f57bb40c66761b31504773bef870;hp=a8c497f59aae838113201d6d841b94ab9608ab40;hb=aab6399f20c07b61a0dbf9614614f44a2e0ea325;hpb=969bd23cab98a79ca9101af33334000879fb60c5

diff --git a/bundles/org.simantics.graph/src/org/simantics/graph/representation/Extensions.java b/bundles/org.simantics.graph/src/org/simantics/graph/representation/Extensions.java
index a8c497f59..375fb1416 100644
--- a/bundles/org.simantics.graph/src/org/simantics/graph/representation/Extensions.java
+++ b/bundles/org.simantics.graph/src/org/simantics/graph/representation/Extensions.java
@@ -1,21 +1,36 @@
-package org.simantics.graph.representation;
-
-import java.util.TreeMap;
-
-import org.simantics.databoard.binding.mutable.Variant;
-
-public class Extensions {
-	
-	final public static String CLUSTERING = "clustering";
-	final public static String CLUSTER_SETS = "clusterSets";
-	final public static int NO_CLUSTER_SET = -1;
-	final public static int ROOT_LIBRARY_CLUSTER_SET = -1;
-	final public static int INDEX_ROOT_CLUSTER_SET = -2;
-	
-	public TreeMap<String, Variant> map = new TreeMap<String, Variant>();
-	
-	public Extensions(TreeMap<String, Variant> map) {
-		this.map = map;
-	}
-
-}
+package org.simantics.graph.representation;
+
+import java.util.TreeMap;
+
+import org.simantics.databoard.Bindings;
+import org.simantics.databoard.binding.Binding;
+import org.simantics.databoard.binding.mutable.Variant;
+
+public class Extensions {
+
+	public static final Binding BINDING = Bindings.getBindingUnchecked(Extensions.class);
+
+	/**
+	 * Used for storing a cached hash code computed from a
+	 * {@link TransferableGraph1} instance <em>without</em> this cached hashcode
+	 * key,value pair in the <code>extensions</code> map.
+	 */
+	public final static String CACHED_HASHCODE = "cached.hashCode";
+
+	final public static String CLUSTERING = "clustering";
+	final public static String CLUSTER_SETS = "clusterSets";
+	final public static int NO_CLUSTER_SET = -1;
+	final public static int ROOT_LIBRARY_CLUSTER_SET = -1;
+	final public static int INDEX_ROOT_CLUSTER_SET = -2;
+
+	public TreeMap<String, Variant> map;
+
+	public Extensions() {
+		this.map = new TreeMap<>();
+	}
+
+	public Extensions(TreeMap<String, Variant> map) {
+		this.map = map;
+	}
+
+}