本文整理了Java中org.eclipse.persistence.oxm.XMLField.isRequired()方法的一些代码示例，展示了XMLField.isRequired()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。XMLField.isRequired()方法的具体详情如下：
包路径：org.eclipse.persistence.oxm.XMLField
类名称：XMLField
方法名：isRequired

XMLField.isRequired介绍

[英]Indicates if this XMLField represents a "required" XML element or attribute ([minOccurs="1"] for elements, [use="required"] for attributes). NOTE: This API is used only for Schema Generation.
[中]指示此XMLField是否表示“必需”的XML元素或属性（[minOccurs=“1”]表示元素，[use=“required”]表示属性）。注意：此API仅用于模式生成。

代码示例

代码示例来源：origin: org.eclipse.persistence/org.eclipse.persistence.core

/**
 * INTERNAL:
 * Convert the attribute value to a field value.
 * Process any converter if defined, and check for null values.
 */
public Object getFieldValue(Object attributeValue, CoreAbstractSession session, AbstractMarshalRecord record) {
  // Marshal
  // PERF: This method is a major performance code point,
  // so has been micro optimized and uses direct variable access.
  Object fieldValue = attributeValue;
  if ((this.nullValue != null) && (this.nullValue.equals(fieldValue)) && !this.isNullValueMarshalled && !((XMLField)field).isRequired()) {
    return null;
  }
  // Allow for user defined conversion to the object value.
  fieldValue = convertObjectValueToDataValue(fieldValue, (AbstractSession) session, (XMLMarshaller) record.getMarshaller());
  if (fieldValue != null) {
     Class fieldClassification = getFieldClassification(field);
     // PERF: Avoid conversion if not required.
     if(fieldClassification != fieldValue.getClass()){
       try {
         fieldValue = session.getPlatform(descriptor.getJavaClass()).convertObject(fieldValue, fieldClassification);
       } catch (ConversionException exception) {
         throw ConversionException.couldNotBeConverted(this, descriptor, exception);
       }
     }
  }
  return fieldValue;
}

代码示例来源：origin: com.haulmont.thirdparty/eclipselink

/**
 * INTERNAL:
 * Convert the attribute value to a field value.
 * Process any converter if defined, and check for null values.
 */
public Object getFieldValue(Object attributeValue, CoreAbstractSession session, AbstractMarshalRecord record) {
  // Marshal
  // PERF: This method is a major performance code point,
  // so has been micro optimized and uses direct variable access.
  Object fieldValue = attributeValue;
  if ((this.nullValue != null) && (this.nullValue.equals(fieldValue)) && !this.isNullValueMarshalled && !((XMLField)field).isRequired()) {
    return null;
  }
  // Allow for user defined conversion to the object value.       
  fieldValue = convertObjectValueToDataValue(fieldValue, (AbstractSession) session, (XMLMarshaller) record.getMarshaller());
  if (fieldValue != null) {
     Class fieldClassification = getFieldClassification(field);
     // PERF: Avoid conversion if not required.
     if(fieldClassification != fieldValue.getClass()){
       try {
         fieldValue = session.getPlatform(descriptor.getJavaClass()).convertObject(fieldValue, fieldClassification);
       } catch (ConversionException exception) {
         throw ConversionException.couldNotBeConverted(this, descriptor, exception);
       }
     }
  }
  return fieldValue;
}

代码示例来源：origin: org.eclipse.persistence/com.springsource.org.eclipse.persistence

if (xmlField.isRequired()) {
  attr.setUse(Attribute.REQUIRED);
    elem.setNillable(true);
  if (xmlField.isRequired()) {
    elem.setMinOccurs("1");

代码示例来源：origin: org.eclipse.persistence/com.springsource.org.eclipse.persistence

elem.setNillable(true);
if (xmlField.isRequired()) {
  elem.setMinOccurs("1");

代码示例来源：origin: org.eclipse.persistence/com.springsource.org.eclipse.persistence

elem.setNillable(true);
if (xmlField.isRequired()) {
  elem.setMinOccurs("1");

代码示例来源：origin: org.eclipse.persistence/com.springsource.org.eclipse.persistence

if (xmlField.isRequired()) {
  element.setMinOccurs("1");

代码示例来源：origin: org.eclipse.persistence/com.springsource.org.eclipse.persistence

if (xmlField.isRequired()) {
  element.setMinOccurs("1");