IndexReader reader = // create IndexReader for (int i=0; i<reader.maxDoc(); i++) { if (reader.isDeleted(i)) continue; Document doc = reader.document(i); String docId = doc.get(“docId”); // do something with docId here… }
Constructors taking Field.Index arguments are available, but are deprecated in 4.0, and should not be used. Instead, you should look to subclasses of Field to control how a field is indexed. StringField is the standard un-analyzed indexed field. The field is indexed is a single token. It is appropriate things like identifiers, for which you … Read more
As Julia points out Sujit Pal’s example is very useful but the Lucene 4 API has substantial changes. Here is a version rewritten for Lucene 4. import java.io.IOException; import java.util.*; import org.apache.commons.math3.linear.*; import org.apache.lucene.analysis.Analyzer; import org.apache.lucene.analysis.core.SimpleAnalyzer; import org.apache.lucene.document.*; import org.apache.lucene.document.Field.Store; import org.apache.lucene.index.*; import org.apache.lucene.store.*; import org.apache.lucene.util.*; public class CosineDocumentSimilarity { public static final String CONTENT … Read more
You have various problems with what you pasted: 1) Incorrect mapping When creating the index, you specify: “mappings”: { “files”: { But your type is actually file, not files. If you checked the mapping, you would see that immediately: curl -XGET ‘http://127.0.0.1:9200/files/_mapping?pretty=1’ # { # “files” : { # “files” : { # “properties” : … Read more