accountlccallback.java

想学习EJB的同学

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package ejb3.day4;

import javax.persistence.PostLoad;
import javax.persistence.PostPersist;
import javax.persistence.PostRemove;
import javax.persistence.PostUpdate;
import javax.persistence.PrePersist;
import javax.persistence.PreRemove;
import javax.persistence.PreUpdate;

import static java.lang.System.out;

/**
 *
 * @author user
 */
public class AccountLCCallback {
    @PrePersist
    public void beforePersist(Object o){
        out.println("before persit: " + o);
    }
    @PostPersist
    public void afterPersist(Object o){
        Account a = (Account)o;
        a.setInterest(a.getBalance() * 0.02f);
        out.println("after persit: " + o);
    }
    @PreUpdate
    public void beforeMerge(Object o){
        out.println("before merge: " + o);
    }
    @PostUpdate
    public void afterMerge(Object o){
        Account a = (Account)o;
        a.setInterest(a.getBalance() * 0.02f);
       out.println("after merge: " + o);
    }
    @PreRemove
    public void beforeRemove(Object o){
        out.println("before remove: " + o);
    }
    @PostRemove
    public void afterRemove(Object o){
        out.println("after remove: " + o);
    }
    @PostLoad
    public void afterRefresh(Object o){
       Account a = (Account)o;
       a.setInterest(a.getBalance() * 0.02f);
       out.println("after refresh: " + o);
    }
}