Transient (Java EE 5)

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SUMMARY: REQUIRED | OPTIONAL

DETAIL: ELEMENT

javax.persistence Annotation Type Transient

@Target(value={METHOD,FIELD}) @Retention(value=RUNTIME) public @interface Transient

Implements: Annotation

@Target(value={METHOD, FIELD})
@Retention(value=RUNTIME)

此注释指定属性或字段不是持久的。它用于注释实体类、映射的超类、可嵌入类的属性或字段。

示例：
    @Entity
    public class Employee {
        @Id int id;
        @Transient User currentUser;
        ...
    }

since

Java Persistence 1.0

英文文档：

This annotation specifies that the property or field is not persistent. It is used to annotate a property or field of an entity class, mapped superclass, or embeddable class.

    Example:
    @Entity
    public class Employee {
        @Id int id;
        @Transient User currentUser;
        ...
    }

Since:: Java Persistence 1.0