Question about string retrieval with FieldCache in trunk

[karl.wright]

Hi folks,

What is the proper way to retrieve a string field from lucene in trunk?  I'm 
specifically looking for the equivalent of:

String[] fieldValues = FieldCache.DEFAULT.getStrings(reader,fieldName);
String actualValue = fieldValues[luceneID-docBase];

The getStrings() method seems to have gone away in FieldCache.java, and it's 
not clear how to work with ByteRefs to do the equivalent.  Any hints?

Karl