例如,我需要将Context Node B中的ATTR2属于的值根据context node A的ATTR1改变,怎么做呢?? 方法如下: 1) 获取 ATTR1 . 2) Put its value in a temporary holder, say ZTEMP attribute of Context Node B 3) In getter-setter of Dependent attribute, ATTR2 ,use the ZTEMP which reflect value of ATTR1.【阅读全文】
(1)、JPA介绍: JPA全称为Java Persistence API ,Java持久化API是Sun公司在Java EE 5规范中提出的Java持久化接口。JPA吸取了目前Java持久化技术的优点,旨在规范、简化Java对象的持久化工作。使用JPA持久化对象,并不是依赖于某一个ORM框架。 &...【阅读全文】
As he walked by the sea of Galilee, he saw two brothers, Simon, who is called Peter, and Andrew his brother, casting a net into the sea--for they were fishermen. And he said to them,"Follow me, and I will make you fish for people." Immediately they left their nets and followed him.(MATTHEW 5:18...【阅读全文】