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

Class org.apache.lucene.document.Document

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

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

Removes field with the specified name from the document. If multiple fields exist with this name, this method removes the first field that has been added. 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.

      Document doc = new Document();
      doc.add(new StringField("key", "doc", Store.NO));
      doc.add(new NumericDocValuesField("ndv", -1));
      int numDocs = atLeast(30);
      for (int i = 0; i < numDocs; i++) {
        doc.removeField("id");
        doc.add(new StringField("id", Integer.toString(docid++), Store.NO));
        writer.addDocument(doc);
      }
      
      long value = rnd + 1;

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    assertTrue(r1.isCurrent());


    String id10 = r1.document(10).getField("id").stringValue();
    
    Document newDoc = r1.document(10);
    newDoc.removeField("id");
    newDoc.add(newStringField("id", Integer.toString(8000), Field.Store.YES));
    writer.updateDocument(new Term("id", id10), newDoc);
    assertFalse(r1.isCurrent());


    DirectoryReader r2 = writer.getReader();

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      Document doc = new Document();
      doc.add(new StringField("key", "doc", Store.NO));
      doc.add(new BinaryDocValuesField("bdv", toBytes(-1)));
      int numDocs = atLeast(30);
      for (int i = 0; i < numDocs; i++) {
        doc.removeField("id");
        doc.add(new StringField("id", Integer.toString(docid++), Store.NO));
        writer.addDocument(doc);
      }
      
      long value = rnd + 1;

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    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");
    assertEquals(4, doc.fields.size());
    doc.removeField("text");
    assertEquals(4, doc.fields.size());

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    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");
    assertEquals(4, doc.fields.size());
    doc.removeField("text");
    assertEquals(4, doc.fields.size());
    doc.removeField("doesnotexists");       // removing non-existing fields is siltenlty ignored
    assertEquals(4, doc.fields.size());

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    assertEquals(6, doc.fields.size());
    doc.removeField("text");
    assertEquals(5, doc.fields.size());
    doc.removeField("text");
    assertEquals(4, doc.fields.size());
    doc.removeField("text");
    assertEquals(4, doc.fields.size());
    doc.removeField("doesnotexists");       // removing non-existing fields is siltenlty ignored
    assertEquals(4, doc.fields.size());
    doc.removeFields("unindexed");
    assertEquals(2, doc.fields.size());

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    assertEquals(5, doc.fields.size());
    doc.removeField("text");
    assertEquals(4, doc.fields.size());
    doc.removeField("text");
    assertEquals(4, doc.fields.size());
    doc.removeField("doesnotexists");       // removing non-existing fields is siltenlty ignored
    assertEquals(4, doc.fields.size());
    doc.removeFields("unindexed");
    assertEquals(2, doc.fields.size());
    doc.removeFields("unstored");
    assertEquals(0, doc.fields.size());

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                  delIDs.addAll(toDeleteIDs);
                  toDeleteIDs.clear();
                }
                addCount.getAndIncrement();
                if (addedField != null) {
                  doc.removeField(addedField);
                }
              } catch (Exception exc) {
                System.out.println(Thread.currentThread().getName() + ": hit exc");
                exc.printStackTrace();
                failed.set(true);

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                      if (VERBOSE) {
                        System.out.println(Thread.currentThread().getName() + ": add pack packID=" + packID + " count=" + docsList.size() + " docs=" + docIDs);
                      }
                      addDocuments(packIDTerm, docsList);
                    }
                    doc.removeField("packID");


                    if (random().nextInt(5) == 2) {
                      if (VERBOSE) {
                        System.out.println(Thread.currentThread().getName() + ": buffer del id:" + packID);
                      }

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                    delCount.addAndGet(subDocs.subIDs.size());
                  }
                  toDeleteSubDocs.clear();
                }
                if (addedField != null) {
                  doc.removeField(addedField);
                }
              } catch (Throwable t) {
                System.out.println(Thread.currentThread().getName() + ": hit exc");
                t.printStackTrace();
                failed.set(true);

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