> 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