1 files changed, 35 insertions, 0 deletions
diff --git a/hypergraph-prototype/attempt1/org/statmt/hg4/VertexState.java b/hypergraph-prototype/attempt1/org/statmt/hg4/VertexState.java
new file mode 100644
index 000000000..ff75c00bf
--- /dev/null
+++ b/hypergraph-prototype/attempt1/org/statmt/hg4/VertexState.java
@@ -0,0 +1,35 @@
+package org.statmt.hg4;
+
+import java.util.HashMap;
+
+public class VertexState extends HashMap<String, Comparable> {
+
+	private static final long serialVersionUID = 421421L;
+	@Override
+	public int hashCode() {
+		int hc = 0;
+		for (String x : this.keySet()) {
+			hc *= 37;
+			hc += x.hashCode();
+		}
+		for (Object o : this.values()) {
+			hc *= 37;
+			hc += o.hashCode();
+		}
+		return hc;
+	}
+	
+	@Override
+	public boolean equals(Object o) {
+		VertexSignature v = (VertexSignature)o;
+		int cs = v.size();
+		for (String x : this.keySet()) {
+			Object ot = this.get(x);
+			if (!ot.equals(v.get(x)))
+				return false;
+			cs--;
+		}
+		return cs == 0;
+	}
+
+}