Grails丢弃域对象

Question

void businessMethod(def object) { 
    // invoke discard only on hibernate objects 
    if (isDomainObject(object)) 
     object.discard() 
    // other stuff 
} 

如何验证对象是否是grails域对象并由hibernate管理？

Answer 1

你可以尝试

grailsApplication.domainClasses*.clazz.contains(Hibernate.getClass(object)) 

见：http://grails.1312388.n4.nabble.com/Check-if-object-is-a-domain-instance-td3224172.html

Answer 2

if (object.metaClass.respondsTo(object, "discard")) { 
     object.discard() 
    }