如何存储/检索列表 <string> 使用Java从/到数据库的值

Question

so I'd like to know how can i store List in one field in database and the type of that field is VARCHAR2 and after that i want to retrieve them later to get it in response.

basically my project go like that SoapUI Request ==> Eclipse ==> SQLDeveloper ==> Eclipse ==> SoapUI Response

i have a class that has the definition of the list like that

private String name;
private int number;
private List<String>channel;
public String getName() {
    return name;
}
public void setName(String name) {
   this.name= name;
}
public String getNumber() {
    return number;
}
public void setNumber(int number) {
   this.number= number;
}
public String getChannel() {
    return channel;
}
public void setChannel(List<String>channel) {
   this.channel= channel; 
}

and it is getting the list that i inserted in the request Ex: [a,b,c,d] now i have a problem in storing them in database using stored procedure

database.AddInParameter("NAME",request.getName());
database.AddInParameter("NUMBER",request.getNumber());
database.AddInParameter("CHANNEL",request.setChannel());//it crashes here and it is returning NULL
database.ExecuteNonQuery();

and i am getting the data from database like

while (rs.next())
{
save.setName(rs.getName());
save.setNumber(rs.getNumber());
save.setChannel(rs.getChannel());
}

I am missing something ? can someone tell me how to fix it and how can i retrieve the list as a list?

Answer 1

As far as ORM, one option would be to create a relation to a table called Channel.

That way each name/number object has a relationship to result of channels from the channel table.

This also keeps the repeating of channels in the database.