jobbean.java

21天学通J2EE的例子2

package data;

import java.rmi.*;
import java.sql.*;
import java.util.*;
import javax.ejb.*;
import javax.naming.*;
import javax.sql.*;

public abstract class JobBean implements EntityBean
{

    // CMP fields
    public abstract String getRef ();
    public abstract void setRef (String ref);
    public abstract String getCustomer ();
    public abstract void setCustomer (String customer);
    public abstract String getDescription ();
    public abstract void setDescription(String description);

    
    // CMR fields
    public abstract LocationLocal getLocation ();
    public abstract void setLocation(LocationLocal location);
    public abstract Collection getSkills();
    public abstract void setSkills(Collection skills);

    // EJB methods start here

    public void ejbPostCreate (String ref, String customer) {}

    public JobPK ejbCreate (String ref, String customer) throws CreateException {
        JobPK key = new JobPK(ref,customer);
        try {
            ((JobLocalHome)ctx.getEJBLocalHome()).findByPrimaryKey(key);
            throw new CreateException("Duplicate job name: "+key);
        }
        catch (FinderException ex) {}
        setRef(ref);
        setCustomer(customer);
        setDescription("");
        return null;
    }

    public void ejbHomeDeleteByCustomer(String customer) throws FinderException, RemoveException {
        Collection jobs = ((JobLocalHome)ctx.getEJBLocalHome()).findByCustomer(customer);
        for (Iterator iter = jobs.iterator(); iter.hasNext(); ) {
            JobLocal job = (JobLocal)iter.next();
            iter.remove();
            job.remove();
        }

    }

    public void ejbLoad() {}
    public void ejbStore() {}
    public void ejbPassivate() {}
    public void ejbActivate() {}
    public void ejbRemove() {}

    private EntityContext ctx;    
    
    public void setEntityContext(EntityContext ctx) {
        this.ctx = ctx;
    }

    public void unsetEntityContext() {
        this.ctx = null;
    }
}