Class AbstractBNodeSerializer

The value will be passed to the class that will extend AbstractBNodeSerializer

• Example:

export interface UAddress {
   streetName: string;
   streetNumber: number;
   isRegistered: boolean;
 }

 export class AddressSerializer extends AbstractBNodeSerializer {

   constructor() {
       super();
       this.addPrefix('address', 'http://example.com/Address/');
   }

   serialize(value: Object): RDFTriple[] {
     const triples: RDFTriple[] = [];

     Object.keys(value).forEach(key => {
           const predicate: RDFResourceIRI = this.makePredicate(`address:${key}`);
           let obj: RDFLiteral;
           // if value is a string
           if (typeof (value[key]) === 'string') {
               obj = this.makeLiteralWithDataType(value[key], 'xsd:string');
           }
           // If value is boolean
           if (typeof (value[key]) === 'boolean') {
               obj = this.makeLiteralWithDataType(value[key], 'xsd:boolean');
           }
           // if value is number
           if (typeof (value[key]) === 'number') {
               obj = this.makeLiteralWithDataType(value[key], 'xsd:integer');
           }
           triples.push(this.createTriple(this.subject, predicate, obj));
      });

    return triples;
   }
 }

 @RdfPrefixes({
   foaf: 'http://xmlns.com/foaf/0.1/',
   user: 'http://example.com/User/'
 })
 @RdfBean('foaf:User')
 export class User {

   @RdfSubject('user')
   public name: string;

   @RdfProperty({predicate: 'user:address', serializer: AddressSerializer})
   public address: UAddress;
 }

 const u: User = new User();
 u.name = 'Anton';
 u.address = {streetName: 'Queen St', streetNumber: 223, isRegistered: true};
 const r = RdfMapper.serialize(u);

Resulting turtle:

@prefix foaf: <http://xmlns.com/foaf/0.1/>.
@prefix user: <http://example.com/User/>.
 @prefix xsd: <http://www.w3.org/2001/XMLSchema#>.
@prefix address: <http://example.com/Address/>.

user:Anton a foaf:User;
user:address _:n3-2.
_:n3-2 address:streetName "Queen St"^^xsd:string;
address:streetNumber "223"^^xsd:integer;
address:isRegistered "true"^^xsd:boolean.