Java MultiFields.getIndexedFields方法代碼示例

import org.apache.lucene.index.MultiFields; //導入方法依賴的package包/類
/**
 * Return a query that will return docs like the passed lucene document ID.
 *
 * @param docNum the documentID of the lucene doc to generate the 'More Like This" query for.
 * @return a query that will return docs like the passed lucene document ID.
 */
public Query like(int docNum) throws IOException {
    if (fieldNames == null) {
        // gather list of valid fields from lucene
        Collection<String> fields = MultiFields.getIndexedFields(ir);
        fieldNames = fields.toArray(new String[fields.size()]);
    }

    return createQuery(retrieveTerms(docNum));
}
 

import org.apache.lucene.index.MultiFields; //導入方法依賴的package包/類
/**
 * Return a query that will return docs like the passed lucene document ID.
 *
 * @param docNum
 *          the documentID of the lucene doc to generate the 'More Like This"
 *          query for.
 * @return a query that will return docs like the passed lucene document ID.
 */
public Query like(int docNum) throws IOException
{
  if (fieldNames == null) {
    // gather list of valid fields from lucene
    Collection<String> fields = MultiFields.getIndexedFields(ir);
    fieldNames = fields.toArray(new String[fields.size()]);
  }

  return createQuery(retrieveTerms(docNum));
}
 

import org.apache.lucene.index.MultiFields; //導入方法依賴的package包/類
/**
 * Return a query that will return docs like the passed lucene document ID.
 *
 * @param docNum the documentID of the lucene doc to generate the 'More Like This" query for.
 * @return a query that will return docs like the passed lucene document ID.
 */
public Query like(int docNum) throws IOException {
  if (fieldNames == null) {
    // gather list of valid fields from lucene
    Collection<String> fields = MultiFields.getIndexedFields(ir);
    fieldNames = fields.toArray(new String[fields.size()]);
  }

  return createQuery(retrieveTerms(docNum));
}
 

import org.apache.lucene.index.MultiFields; //導入方法依賴的package包/類
private String[] getFieldNames(IndexReader ir) {
    if (fieldNames == null) {
        // gather list of all valid fields from lucene, if none specified
        Collection<String> fields = MultiFields.getIndexedFields(ir);
        fieldNames = fields.toArray(new String[fields.size()]);
    }

    return fieldNames;
}
 

import org.apache.lucene.index.MultiFields; //導入方法依賴的package包/類
/**
 * Creates a new QueryAutoStopWordAnalyzer with stopwords calculated for all
 * indexed fields from terms with a document frequency greater than the given
 * maxDocFreq
 *
 * @param delegate Analyzer whose TokenStream will be filtered
 * @param indexReader IndexReader to identify the stopwords from
 * @param maxDocFreq Document frequency terms should be above in order to be stopwords
 * @throws IOException Can be thrown while reading from the IndexReader
 */
public QueryAutoStopWordAnalyzer(
    Analyzer delegate,
    IndexReader indexReader,
    int maxDocFreq) throws IOException {
  this(delegate, indexReader, MultiFields.getIndexedFields(indexReader), maxDocFreq);
}
 

import org.apache.lucene.index.MultiFields; //導入方法依賴的package包/類
/**
 * Creates a new QueryAutoStopWordAnalyzer with stopwords calculated for all
 * indexed fields from terms with a document frequency greater than the given
 * maxDocFreq
 *
 * @param matchVersion Version to be used in {@link StopFilter}
 * @param delegate Analyzer whose TokenStream will be filtered
 * @param indexReader IndexReader to identify the stopwords from
 * @param maxDocFreq Document frequency terms should be above in order to be stopwords
 * @throws IOException Can be thrown while reading from the IndexReader
 */
public QueryAutoStopWordAnalyzer(
    Version matchVersion,
    Analyzer delegate,
    IndexReader indexReader,
    int maxDocFreq) throws IOException {
  this(matchVersion, delegate, indexReader, MultiFields.getIndexedFields(indexReader), maxDocFreq);
}