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

Helper.isEquivalentToNull介绍

[英]Check if the value is null, or 0 (int/long) for primitive ids.
[中]检查该值是否为null，或者对于基元ID为0（int/long）。

代码示例

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

public boolean isPrimaryKeyComponentInvalid(Object keyValue, int index) {
  IdValidation idValidation;
  if (index < 0) {
    idValidation = this.descriptor.getIdValidation();
  } else {
    idValidation = this.descriptor.getPrimaryKeyIdValidations().get(index);
  }
  if (idValidation == IdValidation.ZERO) {
    return keyValue == null || Helper.isEquivalentToNull(keyValue);
  } else if (idValidation == IdValidation.NULL) {
    return keyValue == null;
  } else if (idValidation == IdValidation.NEGATIVE) {
    return keyValue == null || Helper.isNumberNegativeOrZero(keyValue);
  } else {
    // idValidation == IdValidation.NONE
    return false;
  }
}

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

public boolean isPrimaryKeyComponentInvalid(Object keyValue, int index) {
  IdValidation idValidation;
  if (index < 0) {
    idValidation = this.descriptor.getIdValidation();
  } else {        
    idValidation = this.descriptor.getPrimaryKeyIdValidations().get(index);
  }
  if (idValidation == IdValidation.ZERO) {
    return keyValue == null || Helper.isEquivalentToNull(keyValue); 
  } else if (idValidation == IdValidation.NULL) {
    return keyValue == null;
  } else if (idValidation == IdValidation.NEGATIVE) {
    return keyValue == null || Helper.isNumberNegativeOrZero(keyValue);
  } else {
    // idValidation == IdValidation.NONE
    return false;
  }
}

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

|| ((idValidation == IdValidation.ZERO) && Helper.isEquivalentToNull(keyValue)))) {
if (shouldReturnNullIfNull) {
  return null;
  || ((idValidation == IdValidation.ZERO) && Helper.isEquivalentToNull(value)))) {
if (shouldReturnNullIfNull) {
  return null;

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

if (existingValue != null && !Helper.isEquivalentToNull(existingValue)) {
  return null;