Java to typescript translator

A simple application made to translate Java classes to Typescript using Reflection and Java Annotations.

Several examples of annotations are included, such as:

• TypescriptClass
• Import
• Stringified
• Numerical
• CustomField

TypescriptClass

Marks a class to be scanned by the processor and get it translated. Having a constructor is optional but it generates one by default.

Import

Marks a field as an import so it gets translated as a typescript import statement.

Stringified

Marks a field as a string type.

Numerical

Marks a field as a numerical type. By default 6 types are supported (both as objects and primitives):

• short
• int
• integer
• double
• long
• float

CustomField

Marks a field as a custom field and can be named by passing a parameter to the annotation.

Example

User.java

@TypescriptClass  
public class User {

    @Numerical
    private BigInteger id;
    private String username;
   
    @Import
    private UserDetails details;

    @CustomField(name = "any")
    private Date birthday;
}

UserDetails.java

@TypescriptClass(withConstructor = false)
public class UserDetails {
    private String address;
    private double rating;

    @Stringified
    private char favoriteSymbol;
}

will generate

User.ts

import {UserDetails} from "./UserDetails";

export class User {

  public id: number;
  public username: string;
  public details: UserDetails;
  public birthday: any;

  public constructor() {
  }
  
}

UserDetails.ts

export class UserDetails {

  public address: string;
  public rating: number;
  public favoriteSymbol: string;
  
}