Creating Classes to Use in the Examples

Class MyPackage.TestMe Extends %RegisteredObject
{
ClassMethod Add(arg1 As %Integer, arg2 As %Integer) As %Integer
{

    Return arg1 + arg2
}

ClassMethod CreateContact(name As %String, type As %String) As MyPackage.Contact
{

    Set contact = ##class(MyPackage.Contact).%New()
    Set contact.Name=name
    Set contact.ContactType=type
    Return contact
}

ClassMethod GetContactsByType(type As %String) As %ListOfObjects
{

    Set list=##class(%Library.ResultSet).%New()
}

}

Class MyPackage.Contact Extends (%Persistent, %Populate, %XML.Adaptor)
{

/// Describes the nature of the contact: Personal or Business
Property ContactType As %String(TRUNCATE = 1, VALUELIST = ",Business,Personal");

/// Represents a contact's name
Property Name As %String(POPSPEC = "Name()", TRUNCATE = 1) [ Required ];

Query ByContactType(type As %String) As %SQLQuery(CONTAINID = 1)
{
    SELECT %ID FROM Contact
    WHERE (ContactType = :type)
    ORDER BY Name
}

}