Examples of OrdFieldSource

org.apache.lucene.queries.function.valuesource.OrdFieldSource
Obtains the ordinal of the field value from the default Lucene {@link org.apache.lucene.search.FieldCache} using getStringIndex().
The native lucene index order is used to assign an ordinal value for each field value.
Field values (terms) are lexicographically ordered by unicode value, and numbered starting at 1.
Example:
If there were only three field values: "apple","banana","pear"
then ord("apple")=1, ord("banana")=2, ord("pear")=3
WARNING: ord() depends on the position in an index and can thus change when other documents are inserted or deleted, or if a MultiSearcher is used.
WARNING: as of Solr 1.4, ord() and rord() can cause excess memory use since they must use a FieldCache entry at the top level reader, while sorting and function queries now use entries at the segment level. Hence sorting or using a different function query, in addition to ord()/rord() will double memory use.
org.apache.solr.search.function.OrdFieldSource
Obtains the ordinal of the field value from the default Lucene {@link org.apache.lucene.search.FieldCache} using getStringIndex().
The native lucene index order is used to assign an ordinal value for each field value.
Field values (terms) are lexicographically ordered by unicode value, and numbered starting at 1.
Example:
If there were only three field values: "apple","banana","pear"
then ord("apple")=1, ord("banana")=2, ord("pear")=3
WARNING: ord() depends on the position in an index and can thus change when other documents are inserted or deleted, or if a MultiSearcher is used.
WARNING: as of Solr 1.4, ord() and rord() can cause excess memory use since they must use a FieldCache entry at the top level reader, while sorting and function queries now use entries at the segment level. Hence sorting or using a different function query, in addition to ord()/rord() will double memory use. @version $Id: OrdFieldSource.java 1065312 2011-01-30 16:08:25Z rmuir $

Examples of org.apache.lucene.queries.function.valuesource.OrdFieldSource

  private void doTestRank(String field, boolean inOrder) throws Exception {
    IndexReader r = DirectoryReader.open(dir);
    IndexSearcher s = new IndexSearcher(r);
    ValueSource vs;
    if (inOrder) {
      vs = new OrdFieldSource(field);
    } else {
      vs = new ReverseOrdFieldSource(field);
    }


    Query q = new FunctionQuery(vs);

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Examples of org.apache.lucene.queries.function.valuesource.OrdFieldSource

  private void doTestExactScore(String field, boolean inOrder) throws Exception {
    IndexReader r = DirectoryReader.open(dir);
    IndexSearcher s = new IndexSearcher(r);
    ValueSource vs;
    if (inOrder) {
      vs = new OrdFieldSource(field);
    } else {
      vs = new ReverseOrdFieldSource(field);
    }
    Query q = new FunctionQuery(vs);
    TopDocs td = s.search(q, null, 1000);

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Examples of org.apache.lucene.queries.function.valuesource.OrdFieldSource

    r.close();
  }
  
  // LUCENE-1250
  public void testEqualsNull() throws Exception {
    OrdFieldSource ofs = new OrdFieldSource("f");
    assertFalse(ofs.equals(null));
    
    ReverseOrdFieldSource rofs = new ReverseOrdFieldSource("f");
    assertFalse(rofs.equals(null));
  }

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Examples of org.apache.lucene.queries.function.valuesource.OrdFieldSource

  private void doTestRank(String field, boolean inOrder) throws Exception {
    IndexReader r = DirectoryReader.open(dir);
    IndexSearcher s = newSearcher(r);
    ValueSource vs;
    if (inOrder) {
      vs = new OrdFieldSource(field);
    } else {
      vs = new ReverseOrdFieldSource(field);
    }


    Query q = new FunctionQuery(vs);

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Examples of org.apache.lucene.queries.function.valuesource.OrdFieldSource

  private void doTestExactScore(String field, boolean inOrder) throws Exception {
    IndexReader r = DirectoryReader.open(dir);
    IndexSearcher s = newSearcher(r);
    ValueSource vs;
    if (inOrder) {
      vs = new OrdFieldSource(field);
    } else {
      vs = new ReverseOrdFieldSource(field);
    }
    Query q = new FunctionQuery(vs);
    TopDocs td = s.search(q, null, 1000);

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Examples of org.apache.lucene.queries.function.valuesource.OrdFieldSource

    r.close();
  }
  
  // LUCENE-1250
  public void testEqualsNull() throws Exception {
    OrdFieldSource ofs = new OrdFieldSource("f");
    assertFalse(ofs.equals(null));
    
    ReverseOrdFieldSource rofs = new ReverseOrdFieldSource("f");
    assertFalse(rofs.equals(null));
  }

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Examples of org.apache.solr.search.function.OrdFieldSource

  /** called to get the default value source (normally, from the
   *  Lucene FieldCache.)
   */
  public ValueSource getValueSource(SchemaField field, QParser parser) {
    field.checkFieldCacheSource(parser);
    return new OrdFieldSource(field.name);
  }

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Examples of org.apache.solr.search.function.OrdFieldSource

  }


  @Override
  public ValueSource getValueSource(SchemaField field, QParser qparser) {
    field.checkFieldCacheSource(qparser);
    return new OrdFieldSource(field.name);
  }

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Examples of org.apache.solr.search.function.OrdFieldSource

  /** called to get the default value source (normally, from the
   *  Lucene FieldCache.)
   */
  public ValueSource getValueSource(SchemaField field, QParser parser) {
    field.checkFieldCacheSource(parser);
    return new OrdFieldSource(field.name);
  }

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Examples of org.apache.solr.search.function.OrdFieldSource

  public SortField getSortField(SchemaField field,boolean reverse) {
    return getStringSort(field,reverse);
  }


  public ValueSource getValueSource(SchemaField field) {
    return new OrdFieldSource(field.name);
  }

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