Index: lucene/src/java/org/apache/lucene/search/FieldCacheImpl.java
===================================================================
--- lucene/src/java/org/apache/lucene/search/FieldCacheImpl.java	(revision 1141501)
+++ lucene/src/java/org/apache/lucene/search/FieldCacheImpl.java	(revision )
@@ -17,32 +17,16 @@
  * limitations under the License.
  */
 
-import java.io.IOException;
-import java.io.PrintStream;
-import java.util.ArrayList;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
-import java.util.WeakHashMap;
-
+import org.apache.lucene.index.DocTermOrds;
 import org.apache.lucene.index.IndexReader;
-import org.apache.lucene.search.cache.ByteValuesCreator;
-import org.apache.lucene.search.cache.DocTermsCreator;
-import org.apache.lucene.search.cache.DocTermsIndexCreator;
-import org.apache.lucene.search.cache.DoubleValuesCreator;
-import org.apache.lucene.search.cache.EntryCreator;
-import org.apache.lucene.search.cache.FloatValuesCreator;
-import org.apache.lucene.search.cache.IntValuesCreator;
-import org.apache.lucene.search.cache.LongValuesCreator;
-import org.apache.lucene.search.cache.ShortValuesCreator;
-import org.apache.lucene.search.cache.CachedArray.ByteValues;
-import org.apache.lucene.search.cache.CachedArray.DoubleValues;
-import org.apache.lucene.search.cache.CachedArray.FloatValues;
-import org.apache.lucene.search.cache.CachedArray.IntValues;
-import org.apache.lucene.search.cache.CachedArray.LongValues;
-import org.apache.lucene.search.cache.CachedArray.ShortValues;
+import org.apache.lucene.search.cache.*;
+import org.apache.lucene.search.cache.CachedArray.*;
 import org.apache.lucene.util.FieldCacheSanityChecker;
 
+import java.io.IOException;
+import java.io.PrintStream;
+import java.util.*;
+
 /**
  * Expert: The default cache implementation, storing all values in memory.
  * A WeakHashMap is used for storage.
@@ -70,6 +54,7 @@
     caches.put(Double.TYPE, new Cache<DoubleValues>(this));
     caches.put(DocTermsIndex.class, new Cache<DocTermsIndex>(this));
     caches.put(DocTerms.class, new Cache<DocTerms>(this));
+    caches.put(DocTermOrds.class, new Cache<DocTermOrds>(this));
   }
   
   public synchronized void purgeAllCaches() {
@@ -393,6 +378,11 @@
     return (DocTerms)caches.get(DocTerms.class).get(reader, new Entry(field, creator));
   }
 
+  @SuppressWarnings("unchecked")
+  public DocTermOrds getDocTermOrds(IndexReader reader, String field) throws IOException {
+    return (DocTermOrds) caches.get(DocTermOrds.class).get(reader, new Entry(field, new DocTermOrdsCreator(field, 0)));
+  }
+
   private volatile PrintStream infoStream;
 
   public void setInfoStream(PrintStream stream) {
Index: lucene/src/java/org/apache/lucene/search/FieldCache.java
===================================================================
--- lucene/src/java/org/apache/lucene/search/FieldCache.java	(revision 1068526)
+++ lucene/src/java/org/apache/lucene/search/FieldCache.java	(revision )
@@ -17,6 +17,7 @@
  * limitations under the License.
  */
 
+import org.apache.lucene.index.DocTermOrds;
 import org.apache.lucene.index.IndexReader;
 import org.apache.lucene.index.TermsEnum;
 import org.apache.lucene.search.cache.EntryCreator;
@@ -654,6 +655,18 @@
   throws IOException;
 
   /**
+   * Checks the internal cache for an appropriate entry, and if none is found, reads the term values
+   * in <code>field</code> and returns a {@link DocTermOrds} instance, providing a method to retrieve
+   * the term (as a BytesRef) per document.
+   *
+   * @param reader  Used to build a {@link DocTermOrds} instance
+   * @param field   Which field contains the strings.
+   * @return a {@link DocTermOrds} instance
+   * @throws IOException  If any error occurs.
+   */
+  public DocTermOrds getDocTermOrds(IndexReader reader, String field) throws IOException;
+
+  /**
    * EXPERT: A unique Identifier/Description for each item in the FieldCache. 
    * Can be useful for logging/debugging.
    * @lucene.experimental
Index: lucene/src/java/org/apache/lucene/search/cache/DocTermOrdsCreator.java
===================================================================
--- lucene/src/java/org/apache/lucene/search/cache/DocTermOrdsCreator.java	(revision )
+++ lucene/src/java/org/apache/lucene/search/cache/DocTermOrdsCreator.java	(revision )
@@ -0,0 +1,51 @@
+package org.apache.lucene.search.cache;
+
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import org.apache.lucene.index.DocTermOrds;
+import org.apache.lucene.index.IndexReader;
+
+import java.io.IOException;
+
+/**
+ * Creates {@link DocTermOrds} instances.
+ */
+public class DocTermOrdsCreator extends EntryCreatorWithOptions<DocTermOrds> {
+
+  private final String field;
+
+  public DocTermOrdsCreator(String field, int flag) {
+    super(flag);
+    this.field = field;
+  }
+
+  @Override
+  public DocTermOrds create(IndexReader reader) throws IOException {
+    return new DocTermOrds(reader, field);
+  }
+
+  @Override
+  public DocTermOrds validate(DocTermOrds entry, IndexReader reader) throws IOException {
+    return entry;
+  }
+
+  @Override
+  public EntryKey getCacheKey() {
+    return new SimpleEntryKey(DocTermOrdsCreator.class, field);
+  }
+}