Then, typed entities (fields, locals, methods, and formals) in the source code are analyzed to determine if they are suitable candidates for an enumeration type. Finally, Java code is generated with the new enumerated declarations and the new type is inserted into the code, where applicable....
static versus nonstatic classes)C constructs in Java (structures, unions, enumerated types, and function pointers in Java)Tips for designing methods (paramet... J Bloch - Prentice Hall Press 被引量: 9发表: 2008年 Introducing Java's Enumerated Type The enumerated types that were introduced in ...
*@sinceJava Persistence 1.0*/publicenumEnumType {/**Persist enumerated type property or field as an integer.*/ORDINAL,/**Persist enumerated type property or field as a string.*/STRING } 如果不使用该注解,就是在上面说的默认的情况是使用Enum中的ordinal属性来完成,所以关于这部分就不详细阐述了。 ...
Java Persistence 1.0 See Also: Basic,ElementCollection Optional Element Summary Optional Elements Modifier and TypeOptional Element and Description EnumType value (Optional) The type used in mapping an enum type. Element Detail value public abstractEnumTypevalue ...
* enumerated type specify how a persistent property or * field of an enumerated type should be persisted. * * @since Java Persistence 1.0 */ public enum EnumType { /** Persist enumerated type property or field as an integer. */
IllegalArgumentException When Attempting to Instantiate an Enum Type As has been mentioned, instantiation of enum types is forbidden. TheEnumTroubleexample attempts this. import java.lang.reflect.Constructor; import java.lang.reflect.InvocationTargetException; import static java.lang.System.out; enum Char...
javax.persistence Annotation Type Enumerated@Target(value={METHOD,FIELD}) @Retention(value=RUNTIME) public @interface Enumerated Specifies that a persistent property or field should be persisted as a enumerated type. The Enumerated annotation may be used in conjunction...
网络枚举类型;可枚举的类型;列举型态 网络释义 1. 枚举类型 软件开发常用名词中英文对照 - Leo Liu - 博客园 ... entry point 入口点enumerated type枚举类型enumeration 枚举 ... www.cnblogs.com|基于99个网页 2. 可枚举的类型 effective java 中英文术语对照 -... ... enclosing instance 外围实例enumerated...
@Enumerated(EnumType.ORDINAL)//当类型为STRING时,存入数据库的是字符串,字段类型是varchar,当类型为ORDINAL时,存入数据库的是索引值,字段类型是integer public ZhiCheng getZhicheng() { return zhicheng; } public void setZhicheng(ZhiCheng zhicheng) { ...
}@Enumerated(EnumType.ORDINAL)//当类型为STRING时,存入数据库的是字符串,字段类型是varchar,当类型为ORDINAL时,存入数据库的是索引值,字段类型是integerpublicZhiChenggetZhicheng(){returnzhicheng; }publicvoidsetZhicheng(ZhiCheng zhicheng){this.zhicheng = zhicheng; ...