> See Lucene's FieldCache.StringIndex To understand just what's getting stored for each string field, you may also want to look at the createValue() method of the inner Cache object instantiated as stringsIndexCache in FieldCacheImpl.java (line 399 in HEAD):
http://svn.apache.org/viewvc/lucene/java/trunk/src/java/org/apache/lucene/search/FieldCacheImpl.java?view=markup -Charlie
