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QueryBean.javaAPI DocExample2817Mon Mar 01 16:04:32 GMT 2004com.develop.ss.search

QueryBean

public class QueryBean extends Object implements Serializable

(Omit source code)

Fields Summary
private String
query
private String
index
private String
field
private List
results
private static float
THRESHOLD_SCORE
Constructors Summary
public QueryBean(String index, String query, String field)


        
  
      this.field = field;
      this.index = index;
      this.query = query;
public QueryBean(String index, String query)

      this(index, query, "contents");
Methods Summary
public voidexecute()

    results.clear();
    if (query == null) return;
    if (field == null) throw new IllegalArgumentException("field cannot be null");
    if (index == null) throw new IllegalArgumentException("index cannot be null");
    IndexSearcher indexSearcher = new IndexSearcher(index);
    try {
      Analyzer analyzer = new StandardAnalyzer();
      Query q = QueryParser.parse(query, field, analyzer);
      Hits hits = indexSearcher.search(q);
      for (int n=0; n<hits.length(); n++) {
        if (hits.score(n) < THRESHOLD_SCORE) {
          return;
        }
        Document d = hits.doc(n);
        String title = safeGetFieldString(d, "title");
        results.add(new HitBean(d.getField("url").stringValue(), safeGetFieldString(d, "title"), hits.score(n)));
      }
    } finally {
      indexSearcher.close();
    }
public java.lang.StringgetField()

    return field;
public java.lang.StringgetIndex()

    return index;
public java.lang.StringgetQuery()

    return query;
public HitBeangetResult(int index)

    return (HitBean) results.get(index);
public HitBean[]getResults()

    return (HitBean[]) results.toArray(new HitBean[results.size()]);
private java.lang.StringsafeGetFieldString(org.apache.lucene.document.Document d, java.lang.String field)

    Field f = d.getField(field);
    return (f == null) ? "" : f.stringValue();
public voidsetField(java.lang.String field)

    this.field = field;
public voidsetIndex(java.lang.String index)

    this.index = index;
public voidsetQuery(java.lang.String query)

    this.query = query;