How to use

removeValue

method

in

org.opencms.xml.content.CmsXmlContent

/**
 * Removes all values of the given path in the other locales.<p>
 *
 * @param elementPath the element path
 * @param sourceLocale the source locale
 */
private void removeValuesInOtherLocales(String elementPath, Locale sourceLocale) {
  for (Locale locale : getLocales()) {
    if (locale.equals(sourceLocale)) {
      continue;
    }
    while (hasValue(elementPath, locale)) {
      removeValue(elementPath, locale, 0);
    }
  }
}

/**
 * Removes all surplus values of locale independent fields in the other locales.<p>
 *
 * @param elementPath the element path
 * @param valueCount the value count
 * @param sourceLocale the source locale
 */
private void removeSurplusValuesInOtherLocales(String elementPath, int valueCount, Locale sourceLocale) {
  for (Locale locale : getLocales()) {
    if (locale.equals(sourceLocale)) {
      continue;
    }
    List<I_CmsXmlContentValue> localeValues = getValues(elementPath, locale);
    for (int i = valueCount; i < localeValues.size(); i++) {
      removeValue(elementPath, locale, 0);
    }
  }
}

boolean removeAll = Boolean.valueOf(removeAllStringValue).booleanValue();
if (removeAll && content.hasValue(REMOVE_PATH, locale)) {
  content.removeValue(REMOVE_PATH, locale, 0);
} else if (content.hasValue(ADD_PATH, locale)) {
  String rootPath = content.getFile().getRootPath();
      removeMainAddNode = false;
    } else {
      content.removeValue(ADD_PATH_SINGLE_NODE, locale, i);
    content.removeValue(ADD_PATH, locale, 0);

/**
 * Removes the old detail page information from the XML content.<p>
 *
 * @throws CmsException if something goes wrong
 */
private void removeOldValues() throws CmsException {
  Locale locale = getLocale();
  I_CmsXmlContentValue value = m_document.getValue(N_DETAIL_PAGE, locale);
  do {
    value = m_document.getValue(N_DETAIL_PAGE, locale);
    if (value != null) {
      m_document.removeValue(value.getPath(), locale, 0);
    }
  } while (value != null);
}

  /**
   * Removes the value element of the sequence type at the selected index from XML content document.<p>
   *
   * @param index the index where to remove the value element
   *
   * @see CmsXmlContent#removeValue(String, Locale, int)
   */
  public void removeValue(int index) {

    m_content.removeValue(getPath(), getLocale(), index);

    // re-initialize the value list
    m_values = m_content.getValues(getPath(), getLocale());
  }
}

  /**
   * Removes the value element of the sequence type at the selected index from XML content document.<p> 
   * 
   * @param index the index where to remove the value element
   * 
   * @see CmsXmlContent#removeValue(String, Locale, int)
   */
  public void removeValue(int index) {

    m_content.removeValue(getPath(), getLocale(), index);

    // re-initialize the value list
    m_values = m_content.getValues(getPath(), getLocale());
  }
}

/**
 * Deletes the given value path from the content document.<p>
 *
 * @param content the content document
 * @param locale the content locale
 * @param path the value XPath
 */
protected void deleteContentValue(CmsXmlContent content, Locale locale, String path) {
  boolean hasValue = content.hasValue(path, locale);
  if (hasValue) {
    int index = CmsXmlUtils.getXpathIndexInt(path) - 1;
    I_CmsXmlContentValue val = content.getValue(path, locale);
    if (index >= val.getMinOccurs()) {
      content.removeValue(path, locale, index);
    } else {
      val.setStringValue(m_cms, "");
    }
  }
}

/**
 * Removes an existing inheritance container entry with a given name from the configuration file.<p>
 *
 * This does nothing if no such entry actually exists.<p>
 *
 * @param cms the current CMS context
 * @param content the XML content
 * @param locale the locale from which to remove the entry
 * @param name the name of the entry
 *
 */
protected void removeExistingEntry(CmsObject cms, CmsXmlContent content, Locale locale, String name) {
  if (!content.hasLocale(locale)) {
    return;
  }
  String entriesXpath = N_CONFIGURATION;
  List<I_CmsXmlContentValue> values = content.getValues(entriesXpath, locale);
  int valueIndex = 0;
  for (I_CmsXmlContentValue value : values) {
    String valueXpath = value.getPath();
    I_CmsXmlContentValue nameValue = content.getValue(CmsXmlUtils.concatXpath(valueXpath, N_NAME), locale);
    String currentName = nameValue.getStringValue(cms);
    if (currentName.equals(name)) {
      content.removeValue(valueXpath, locale, valueIndex);
      break;
    }
    valueIndex += 1;
  }
}

  content.removeValue(value.getName(), value.getLocale(), value.getIndex());
  modified = true;
} catch (CmsRuntimeException ex) {

/**
 * Removes a model page from the sitemap configuration.<p>
 *
 * @param sitemapConfig the sitemap configuration resource
 * @param structureId the structure id of the model page to remove
 *
 * @throws CmsException if something goes wrong
 */
public void removeModelPage(CmsResource sitemapConfig, CmsUUID structureId) throws CmsException {
  CmsFile sitemapConfigFile = m_cms.readFile(sitemapConfig);
  CmsXmlContent content = CmsXmlContentFactory.unmarshal(m_cms, sitemapConfigFile);
  CmsConfigurationReader reader = new CmsConfigurationReader(m_cms);
  reader.parseConfiguration(m_adeConfig.getBasePath(), content);
  List<CmsModelPageConfig> modelPageConfigs = reader.getModelPageConfigs();
  int i = 0;
  for (CmsModelPageConfig config : modelPageConfigs) {
    if (config.getResource().getStructureId().equals(structureId)) {
      break;
    }
    i += 1;
  }
  if (i < modelPageConfigs.size()) {
    content.removeValue(CmsConfigurationReader.N_MODEL_PAGE, Locale.ENGLISH, i);
  }
  writeSitemapConfig(content, sitemapConfigFile);
}

  content.removeValue(value.getName(), value.getLocale(), value.getIndex());
  modified = true;
} catch (CmsRuntimeException ex) {

  m_content.removeValue(getParamElementName(), getElementLocale(), index);
} else {

content.removeValue(CmsConfigurationReader.N_MODEL_PAGE, locale, defaultValueIndex);
content.addValue(m_cms, CmsConfigurationReader.N_MODEL_PAGE, locale, 0);
content.getValue(

m_content.removeValue(getParamElementName(), getElementLocale(), index);
  m_content.removeValue(xpath, getElementLocale(), CmsXmlUtils.getXpathIndexInt(xpath) - 1);