Index: src/java/org/apache/lucene/index/SegmentTermEnum.java
===================================================================
--- src/java/org/apache/lucene/index/SegmentTermEnum.java	(revision 710047)
+++ src/java/org/apache/lucene/index/SegmentTermEnum.java	(working copy)
@@ -160,6 +160,17 @@
     }
     return count;
   }
+  
+  /** Optimized skipTo, without allocating new terms. */
+  public boolean skipTo(Term target) throws IOException {
+    scanBuffer.set(target);
+    while (next()) {
+    	if(termBuffer.compareTo(scanBuffer) >= 0){
+    		return true;
+    	}
+      }
+    return false;
+  }  
 
   /** Returns the current Term in the enumeration.
    Initially invalid, valid after next() called for the first time.*/