Constructor

Generating Parameterized Constructor

The default generation of c# class or record are parameterless constructor.

A public Parameterized Constructor can be generated by the option -R <option> OR --ctor <option>.

Allowed values are:

• full to generate Parameters constructor with initializing proerties.

• none (default value): No generation.

The parameters of the constructor are only:

• The not null properties.
• The non navigation properties.

Example

o2pgen -r https://services.odata.org/TripPinRESTierService --ctor full

OR using short option:

o2pgen -r https://services.odata.org/TripPinRESTierService -R full 

Sample of the generated c# code:

// EntitySetName: PlanItem
	public partial class PlanItem
	{
	    public PlanItem (int planItemId, DateTimeOffset startsAt, DateTimeOffset endsAt, TimeSpan duration)
	    {
	    	PlanItemId = planItemId;
	    	StartsAt = startsAt;
	    	EndsAt = endsAt;
	    	Duration = duration;
	    }

	    public virtual int PlanItemId {get;set;} //PrimaryKey not null
	    
	    public virtual string ConfirmationCode {get;set;} 
	    
	    public virtual DateTimeOffset StartsAt {get;set;} // not null
	    
	    public virtual DateTimeOffset EndsAt {get;set;} // not null
	    
	    public virtual TimeSpan Duration {get;set;} // not null	    

	}

Click to show complete generated code

//o2pgen -r https://services.odata.org/TripPinRESTierService --ctor full -n

using System;
using System.IO;
using System.Collections.Generic;
using Microsoft.Spatial;

namespace Trippin
{
	// EntitySetName: People
	public partial class Person
	{
	    public Person (string userName, string firstName, PersonGender gender, Feature favoriteFeature)
	    {
	    	UserName = userName;
	    	FirstName = firstName;
	    	Gender = gender;
	    	FavoriteFeature = favoriteFeature;
	    }

	    public virtual string UserName {get;set;} //PrimaryKey not null
	    
	    public virtual string FirstName {get;set;} // not null
	    
	    public virtual string LastName {get;set;} 
	    
	    public virtual string MiddleName {get;set;} 
	    
	    public virtual PersonGender Gender {get;set;} // not null
	    
	    public virtual long Age {get;set;} 
	    
	    public virtual List<string> Emails {get;set;} 
	    
	    public virtual List<Location> AddressInfo {get;set;} 
	    
	    public virtual Location HomeAddress {get;set;} 
	    
	    public virtual Feature FavoriteFeature {get;set;} // not null
	    
	    public virtual List<Feature> Features {get;set;} 
	    
	    public virtual List<Person> Friends {get;set;} 
	    
	    public virtual Person BestFriend {get;set;} 
	    
	    public virtual List<Trip> Trips {get;set;} 
	    

	}

	// EntitySetName: Airlines
	public partial class Airline
	{
	    public Airline (string airlineCode)
	    {
	    	AirlineCode = airlineCode;
	    }

	    public virtual string AirlineCode {get;set;} //PrimaryKey not null
	    
	    public virtual string Name {get;set;} 
	    

	}

	// EntitySetName: Airports
	public partial class Airport
	{
	    public Airport (string icaoCode)
	    {
	    	IcaoCode = icaoCode;
	    }

	    public virtual string Name {get;set;} 
	    
	    public virtual string IcaoCode {get;set;} //PrimaryKey not null
	    
	    public virtual string IataCode {get;set;} 
	    
	    public virtual AirportLocation Location {get;set;} 
	    

	}

	// Complex Entity
	public partial class Location
	{
	    public virtual string Address {get;set;} 
	    
	    public virtual City City {get;set;} 
	    

	}

	// Complex Entity
	public partial class City
	{
	    public virtual string Name {get;set;} 
	    
	    public virtual string CountryRegion {get;set;} 
	    
	    public virtual string Region {get;set;} 
	    

	}

	// Complex Entity
	public partial class AirportLocation : Location
	{
	    public virtual GeographyPoint Loc {get;set;} 
	    

	}

	// Complex Entity
	public partial class EventLocation : Location
	{
	    public virtual string BuildingInfo {get;set;} 
	    

	}

	// EntitySetName: Trip
	public partial class Trip
	{
	    public Trip (int tripId, Guid shareId, float budget, DateTimeOffset startsAt, D
ateTimeOffset endsAt)
	    {
	    	TripId = tripId;
	    	ShareId = shareId;
	    	Budget = budget;
	    	StartsAt = startsAt;
	    	EndsAt = endsAt;
	    }

	    public virtual int TripId {get;set;} //PrimaryKey not null
	    
	    public virtual Guid ShareId {get;set;} // not null
	    
	    public virtual string Name {get;set;} 
	    
	    public virtual float Budget {get;set;} // not null
	    
	    public virtual string Description {get;set;} 
	    
	    public virtual List<string> Tags {get;set;} 
	    
	    public virtual DateTimeOffset StartsAt {get;set;} // not null
	    
	    public virtual DateTimeOffset EndsAt {get;set;} // not null
	    
	    public virtual List<PlanItem> PlanItems {get;set;} 
	    

	}

	// EntitySetName: PlanItem
	public partial class PlanItem
	{
	    public PlanItem (int planItemId, DateTimeOffset startsAt, DateTimeOffset endsAt
, TimeSpan duration)
	    {
	    	PlanItemId = planItemId;
	    	StartsAt = startsAt;
	    	EndsAt = endsAt;
	    	Duration = duration;
	    }

	    public virtual int PlanItemId {get;set;} //PrimaryKey not null
	    
	    public virtual string ConfirmationCode {get;set;} 
	    
	    public virtual DateTimeOffset StartsAt {get;set;} // not null
	    
	    public virtual DateTimeOffset EndsAt {get;set;} // not null
	    
	    public virtual TimeSpan Duration {get;set;} // not null
	    

	}

	// EntitySetName: Event
	public partial class Event : PlanItem
	{
	    public virtual EventLocation OccursAt {get;set;} 
	    
	    public virtual string Description {get;set;} 
	    

	}

	// EntitySetName: PublicTransportation
	public partial class PublicTransportation : PlanItem
	{
	    public virtual string SeatNumber {get;set;} 
	    

	}

	// EntitySetName: Flight
	public partial class Flight : PublicTransportation
	{
	    public virtual string FlightNumber {get;set;} 
	    
	    public virtual Airline Airline {get;set;} 
	    
	    public virtual Airport From {get;set;} 
	    
	    public virtual Airport To {get;set;} 
	    

	}

	// EntitySetName: Employee
	public partial class Employee : Person
	{
	    public Employee (long cost)
	    {
	    	Cost = cost;
	    }

	    public virtual long Cost {get;set;} // not null
	    
	    public virtual List<Person> Peers {get;set;} 
	    

	}

	// EntitySetName: Manager
	public partial class Manager : Person
	{
	    public Manager (long budget)
	    {
	    	Budget = budget;
	    }

	    public virtual long Budget {get;set;} // not null
	    
	    public virtual Location BossOffice {get;set;} 
	    
	    public virtual List<Person> DirectReports {get;set;} 
	    

	}

	public enum PersonGender
	 {
 		Male=0,
		Female=1,
		Unknown=2 
	}
	public enum Feature
	 {
 		Feature1=0,
		Feature2=1,
		Feature3=2,
		Feature4=3 
	}
}

Type Visibility

The default generation of class or record is public, but it can be internal using the option --interal

Example

o2pgen -r https://services.odata.org/TripPinRESTierService --internal 

Sample of the generated c# code:

// EntitySetName: PlanItem
	internal partial class PlanItem
	{
	    public virtual int PlanItemId {get;set;} //PrimaryKey not null
	    
	    public virtual string ConfirmationCode {get;set;} 
	    
	    public virtual DateTimeOffset StartsAt {get;set;} // not null
	    
	    public virtual DateTimeOffset EndsAt {get;set;} // not null
	    
	    public virtual TimeSpan Duration {get;set;} // not null	    

	}