I have long been meaning to publish an updated codebase for Lucene in
Action compatible with Lucene 2.0. I adjusted the code a while ago,
but I haven't published it yet (and I think the plan is to wait until
LIA2 is finished to do so). I did make notes when I made these
changes, and I'm pasting them below for all to benefit from.
Replace all BooleanQuery.add's, e.g.:
- subjectQuery.add(tq, false, false);
+ subjectQuery.add(tq, BooleanClause.Occur.SHOULD);
Substitute RangeFilter for DateFilter usage, e.g.:
- DateFilter filter = new DateFilter("modified", jan1, dec31);
+ RangeFilter filter = new RangeFilter("modified", jan1,
dec31, true, true);
NOTE: The dates are now String's generated by
DateUtils.dateToString() and incompatible with DateField
Replace all Field.Keyword/UnStored/Text/UnIndexed with the enumerated
types, e.g.:
- doc.add(Field.Keyword("animal", animal));
+ doc.add(new Field("animal", animal, Field.Store.YES,
Field.Index.UN_TOKENIZED));
Rename PhrasePrefixQuery -> MultiPhraseQuery
Use instance of QueryParser instead of static parse method, e.g.:
- Query query = QueryParser.parse(expression, "contents",
analyzer);
+ Query query = new QueryParser("contents", analyzer).parse
(expression)
QueryParser subclasses adjusted for overridden getXXXQuery method
signatures.
IndexReader.delete() updated to be
IndexReader.deleteDocument/.deleteDocuments()
IndexWriter internal configuration values now accessed through
getters/setters rather than the fields directly, with minMergeDocs
renamed as setMaxBufferedDocs().
QueryParser.setLowercaseWildcardTerms() replaced
with .setLowercaseExpandedTerms()
QueryParser.getRangeQuery() still uses DateField when constructing a
RangeQuery.
If your index is built using DateTools, you will need to subclass
and override, as shown in QueryParserTest.testRangeQuery().
On Oct 10, 2006, at 2:13 PM, Serhiy Polyakov wrote:
Hi,
I started to study Lucene following the book Lucene in Action.
I am trying to compile book examples downloaded from the book site:
http://www.manning.com/hatcher2/
When I am trying to compile first example (Indexer.java) it gives me
the following error:
LuceneInAction\src\lia\meetlucene\Indexer.java:80: cannot find symbol
symbol : method Text(java.lang.String,java.io.FileReader)
location: class org.apache.lucene.document.Field
doc.add(Field.Text("contents", new FileReader(f)));
I know that file lucene-core-2.0.0.jar is in CLASSPATH and other
classes like
org.apache.lucene.index.IndexWriter are working OK. The only class I
am having problem with is org.apache.lucene.document.Field;
Can you suggest something?
Thanks,
Serhiy
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