Examples of org.apache.lucene.document.Document.removeFields()

Class org.apache.lucene.document.Document

Examples of org.apache.lucene.document.Document.removeFields()

org.apache.lucene.document.Document.removeFields()

Removes all fields with the given name from the document. If there is no field with the specified name, the document remains unchanged.

Note that the removeField(s) methods like the add method only make sense prior to adding a document to an index. These methods cannot be used to change the content of an existing index! In order to achieve this, a document has to be deleted from an index and a new changed version of that document has to be added.

    doc.add(new TextField("price", "10.0", Field.Store.NO));
    for(int i=0;i<300;i++){
      doc.add(new TextField(toField, ""+i, Field.Store.NO));
      if(!multipleValues){
        w.addDocument(doc);
        doc.removeFields(toField);
      }
    }
    w.addDocument(doc);


    IndexSearcher indexSearcher = new IndexSearcher(w.getReader());

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            } else {
              iw.addDocument(doc);
              if (doc.getFields().size() > 1) {
                // back to 1 field
                currentField = field;
                doc.removeFields("dummy");
                doc.add(currentField);
              }
            }
          }
        } catch (Throwable t) {

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      String split[] = title.split("\\s+");
      for (String trash : split) {
        document.add(new SortedSetDocValuesField("sortedset", new BytesRef(trash)));
      }
      // add a numeric dv field sometimes
      document.removeFields("sparsenumeric");
      if (random.nextInt(4) == 2) {
        document.add(new NumericDocValuesField("sparsenumeric", random.nextInt()));
      }
      // add sortednumeric sometimes
      document.removeFields("sparsesortednum");

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      document.removeFields("sparsenumeric");
      if (random.nextInt(4) == 2) {
        document.add(new NumericDocValuesField("sparsenumeric", random.nextInt()));
      }
      // add sortednumeric sometimes
      document.removeFields("sparsesortednum");
      if (random.nextInt(5) == 1) {
        document.add(new SortedNumericDocValuesField("sparsesortednum", random.nextLong()));
        if (random.nextBoolean()) {
          document.add(new SortedNumericDocValuesField("sparsesortednum", random.nextLong()));
        }

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        public Document document(int n, FieldSelector fieldSelector)
                throws CorruptIndexException, IOException {
            Document doc = super.document(n, fieldSelector);
            Fieldable[] fields = doc.getFieldables(FieldNames.PROPERTIES);
            if (fields != null) {
                doc.removeFields(FieldNames.PROPERTIES);
                for (Fieldable field : fields) {
                    String value = field.stringValue();
                    value = value.replace(oldSepChar, '[');
                    doc.add(new Field(FieldNames.PROPERTIES, false, value,
                            Field.Store.YES, Field.Index.NOT_ANALYZED_NO_NORMS,

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        public Document document(int n, FieldSelector fieldSelector)
                throws CorruptIndexException, IOException {
            Document doc = super.document(n, fieldSelector);
            Fieldable[] fields = doc.getFieldables(FieldNames.PROPERTIES);
            if (fields != null) {
                doc.removeFields(FieldNames.PROPERTIES);
                for (Fieldable field : fields) {
                    String value = field.stringValue();
                    value = value.replace('\uFFFF', '[');
                    doc.add(new Field(FieldNames.PROPERTIES, value, Field.Store.YES, Field.Index.NOT_ANALYZED_NO_NORMS));
                }

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        public Document document(int n, FieldSelector fieldSelector)
                throws CorruptIndexException, IOException {
            Document doc = super.document(n, fieldSelector);
            Fieldable[] fields = doc.getFieldables(FieldNames.PROPERTIES);
            if (fields != null) {
                doc.removeFields(FieldNames.PROPERTIES);
                for (Fieldable field : fields) {
                    String value = field.stringValue();
                    value = value.replace(oldSepChar, '[');
                    doc.add(new Field(FieldNames.PROPERTIES, value, Field.Store.YES, Field.Index.NOT_ANALYZED_NO_NORMS));
                }

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    assertTrue(binaryTest2.equals(binaryVal2));
    
    doc.removeField("string");
    assertEquals(2, doc.fields.size());
    
    doc.removeFields("binary");
    assertEquals(0, doc.fields.size());
  }
  
  /**
   * Tests {@link Document#removeField(String)} method for a brand new Document

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   */
  public void testRemoveForNewDocument() throws Exception
  {
    Document doc = makeDocumentWithFields();
    assertEquals(8, doc.fields.size());
    doc.removeFields("keyword");
    assertEquals(6, doc.fields.size());
    doc.removeFields("doesnotexists");      // removing non-existing fields is siltenlty ignored
    doc.removeFields("keyword");    // removing a field more than once
    assertEquals(6, doc.fields.size());
    doc.removeField("text");

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  {
    Document doc = makeDocumentWithFields();
    assertEquals(8, doc.fields.size());
    doc.removeFields("keyword");
    assertEquals(6, doc.fields.size());
    doc.removeFields("doesnotexists");      // removing non-existing fields is siltenlty ignored
    doc.removeFields("keyword");    // removing a field more than once
    assertEquals(6, doc.fields.size());
    doc.removeField("text");
    assertEquals(5, doc.fields.size());
    doc.removeField("text");

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