Given: Which group of method is moved to a new class when implementing the DAO pattern?

Question

Exhibit

Options

• Apublic in getId ()
• Bpublic int getId ()
• Cpublic void setContractDetails(String contractDetails)
• Dpublic Person getPerson(int id) throws Exception

• A
  16% (10)
• B
  10% (6)
• C
  3% (2)
• D
  71% (45)

Explanation

The methods related directly to the entity Person is moved to a new class. Note:DAO Design Pattern *Abstracts and encapsulates all access to a data source *Manages the connection to the data source to obtain and store data *Makes the code independent of the data sources and data vendors (e.g. plain-text, xml, LDAP, MySQL, Oracle, DB2) Example (here Customer is the main entity): public class Customer { private final String id; private String contactName; private String phone; public void setId(String id) { this.id = id; } public String getId() { return this.id; } public void setContactName(String cn) { this.contactName = cn;} public String getContactName() { return this.contactName; } public void setPhone(String phone) { this.phone = phone; } public String getPhone() { return this.phone; } public interface CustomerDAO { public void addCustomer(Customer c) throws DataAccessException; public Customer getCustomer(String id) throws DataAccessException; public List getCustomers() throws DataAccessException; public removeCustomer(String id) throws DataAccessException; public void modifyCustomer(Customer c) throws DataAccessException; }

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