本文整理了Java中org.simpleframework.xml.Element.required()方法的一些代码示例，展示了Element.required()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Element.required()方法的具体详情如下：
包路径：org.simpleframework.xml.Element
类名称：Element
方法名：required

Element.required介绍

暂无

代码示例

代码示例来源：origin: syncany/syncany

/**
 * Validate if all required fields are present.
 *
 * @throws StorageException Thrown if the validation failed due to missing field values.
 */
@Validate
public final void validateRequiredFields() throws StorageException {
  logger.log(Level.FINE, "Validating required fields");
  try {
    Field[] elementFields = ReflectionUtil.getAllFieldsWithAnnotation(this.getClass(), Element.class);
    for (Field field : elementFields) {
      field.setAccessible(true);
      if (field.getAnnotation(Element.class).required() && field.get(this) == null) {
        logger.log(Level.WARNING, "Missing mandatory field {0}#{1}", new Object[] { this.getClass().getSimpleName(), field.getName() });
        throw new StorageException("Missing mandatory field " + this.getClass().getSimpleName() + "#" + field.getName());
      }
    }
  }
  catch (IllegalAccessException e) {
    throw new RuntimeException("IllegalAccessException when validating required fields: ", e);
  }
}

代码示例来源：origin: syncany/syncany

private static TransferPluginOption getOptionFromField(Field field, Class<? extends TransferSettings> transferSettingsClass, int level) {
  Element elementAnnotation = field.getAnnotation(Element.class);
  Setup setupAnnotation = field.getAnnotation(Setup.class);
  boolean hasName = !elementAnnotation.name().equalsIgnoreCase("");
  boolean hasDescription = setupAnnotation != null && !setupAnnotation.description().equals("");
  boolean hasCallback = setupAnnotation != null && !setupAnnotation.callback().isInterface();
  boolean hasConverter = setupAnnotation != null && !setupAnnotation.converter().isInterface();
  boolean hasFileType = setupAnnotation != null && setupAnnotation.fileType() != null;
  String name = (hasName) ? elementAnnotation.name() : field.getName();
  String description = (hasDescription) ? setupAnnotation.description() : field.getName();
  FileType fileType = (hasFileType) ? setupAnnotation.fileType() : null;
  boolean required = elementAnnotation.required();
  boolean sensitive = setupAnnotation != null && setupAnnotation.sensitive();
  boolean singular = setupAnnotation != null && setupAnnotation.singular();
  boolean visible = setupAnnotation != null && setupAnnotation.visible();
  boolean encrypted = field.getAnnotation(Encrypted.class) != null;
  Class<? extends TransferPluginOptionCallback> callback = (hasCallback) ? setupAnnotation.callback() : null;
  Class<? extends TransferPluginOptionConverter> converter = (hasConverter) ? setupAnnotation.converter() : null;
  boolean isNestedOption = TransferSettings.class.isAssignableFrom(field.getType());
  if (isNestedOption) {
    return createNestedOption(field, level, name, description, fileType, encrypted, sensitive, singular, visible, required, callback, converter);
  }
  else {
    return createNormalOption(field, transferSettingsClass, name, description, fileType, encrypted, sensitive, singular, visible, required, callback, converter);
  }
}

代码示例来源：origin: org.simpleframework/simple-xml

/**
* Constructor for the <code>ElementLabel</code> object. This is
* used to create a label that can convert a XML node into a 
* composite object or a primitive type from an XML element. 
* 
* @param contact this is the field that this label represents
* @param label this is the annotation for the contact 
* @param format this is the format used to style this element
*/
public ElementLabel(Contact contact, Element label, Format format) {
 this.detail = new Introspector(contact, this, format);
 this.decorator = new Qualifier(contact);
 this.required = label.required();
 this.type = contact.getType();
 this.override = label.name();     
 this.expect = label.type();
 this.data = label.data();
 this.format = format;
 this.label = label; 
}

代码示例来源：origin: org.restlet.lib/org.simpleframework.simple-xml

/**
* Constructor for the <code>ElementLabel</code> object. This is
* used to create a label that can convert a XML node into a 
* composite object or a primitive type from an XML element. 
* 
* @param contact this is the field that this label represents
* @param label this is the annotation for the contact 
* @param format this is the format used to style this element
*/
public ElementLabel(Contact contact, Element label, Format format) {
 this.detail = new Introspector(contact, this, format);
 this.decorator = new Qualifier(contact);
 this.required = label.required();
 this.type = contact.getType();
 this.override = label.name();     
 this.expect = label.type();
 this.data = label.data();
 this.format = format;
 this.label = label; 
}

代码示例来源：origin: ngallagher/simplexml

/**
* Constructor for the <code>ElementLabel</code> object. This is
* used to create a label that can convert a XML node into a 
* composite object or a primitive type from an XML element. 
* 
* @param contact this is the field that this label represents
* @param label this is the annotation for the contact 
* @param format this is the format used to style this element
*/
public ElementLabel(Contact contact, Element label, Format format) {
 this.detail = new Introspector(contact, this, format);
 this.decorator = new Qualifier(contact);
 this.required = label.required();
 this.type = contact.getType();
 this.override = label.name();     
 this.expect = label.type();
 this.data = label.data();
 this.format = format;
 this.label = label; 
}