@Target({ElementType.TYPE, ElementType.METHOD, ElementType.PARAMETER}) @Retention(RetentionPolicy.RUNTIME) @Documented public @interface Validated { /** * Specify one or more validation groups to apply to the validation step * kicked off by this annotation. * JSR-303 defines validation groups as ...
java.lang.Enum<EnumType> javax.persistence.EnumType All Implemented Interfaces: Serializable,Comparable<EnumType> public enumEnumTypeextendsEnum<EnumType> Defines mapping for enumerated types. The constants of this enumerated type specify how a persistent property or field of an enumerated type should ...
Anenumtype is a special data type that enables for a variable to be a set of predefined constants. A variable that has been declared as having an enumerated type can be assigned any of the enumerators as a value. Enumerations make the code more readable. Enumerations are useful when we d...
public enum Day{MONDAY,TUESDAY,WEDNESDAY} 类型形参 条目 描述 在打开尖括号之前 如果选中,将在类型参数的左尖括号前自动插入一个空格。 否则,不插入空格。 已选中 public class Foo <T extends Bar&Abba,U>{ 未选中 public class Foo<T extends Bar&Abba,U>{ 类型边界周围 如果选中,将在类型参数的类型...
(KafkaTopicEnum.valueOf("FUND_INTERA_VV"));// 查找枚举对象,没有会报错}}// 结果:// KafkaTopicEnum{topic='fund.intera.vv'}// fund.intera.vv// FUND_INTERA_VV// [KafkaTopicEnum{topic='fund.intera.vv'}, KafkaTopicEnum{topic='fund.program.top'}, KafkaTopicEnum{topic='fund.user.active...
public enumEnumType extends java.lang.Enum<EnumType> Defines mapping for enumerated types. The constants of this enumerated type specify how a persistent property or field of an enumerated type should be persisted. Since: Java Persistence 1.0 ...
-e specify application entry point for stand-alone application bundled into an executable jar file (为绑定到可执行jar文件的独立应用程序指定应用程序入口点) -0 store only; use no ZIP compression -P preserve leading '/' (absolute path) and ".." (parent directory) components from file names -...
Instantiating Struts-provided ActionForm class directly instead of instantiating a class derived off ActionForm. This mightoccur implicitly if you specify that a form-bean is this Struts ActionForm class rather than specifying a child of this classfor the form-bean. ...
A Java keyword that is used in method declarations to specify that the method is not implemented in the same Java source file, but rather in another language. new A Java keyword used to create an instance of a class. null The null type has one value, the null reference, represented by ...
-IPATH, --proto_path=PATH Specify the directory in which to search for imports. May be specified multiple times; directories will be searched in order. If not given, the current working directory is used. If not found in any of the these directories, ...