LIDO - The Linked Data Object Mapper for Java

With Lido you can easily map Linked Data resources to Java Objects.

Example

Create POJOs with annotations e.g. Employee and Organization.

@Type("http://schema.org/Person")
public class Employee {

    @Path("<http://schema.org/name>")
    public String name;

    @Path("<http://schema.org/description>")
    public LangString langString;
    //LangString allows to map all language strings in one Object

    @Path("<http://schema.org/weight>")
    public double weight;

}

@Type("http://schema.org/Organization")
public class Organization {

    @Path("<http://schema.org/name>")
    public String name;

    @Path("<http://schema.org/employee>")
    public HashSet<Employee> employees;

    @Path("<http://schema.org/telephone>")
    public HashSet<String> phone;

}

Create an LDPathMapper with a Class that implements DataClient. E.g. we want to get the organizations (that also includes all the Employee objects, as you can see). You have several access methods like findAll, findPage(size,number), findOne(uri) and findSome(list:uri)).

    //create mapper for organizations
    LDPathMapper<Organization> organizations = new LDPathMapper<>(dataClient, Organization.class);

    //get all organizations
    Set<Organization> all_organizations = organizations.findAll();

    //get organizations paged
    Page<Organization> paged_organizations = organizations.findPage(1,3);

    //create mapper for employees
    LDPathMapper<Employee> employees = new LDPathMapper<>(dataClient, Employee.class);

    //get one employee
    Employee employee = employees.findOne(new URI("http://example.org/e1"));

    //get some employees
    Set<Employee> some_employees = employees.findSome(ImmutableSet.of(
            new URI("http://example.org/e1"),
            new URI("http://example.org/e1")
    ));

tkurz/lido

LIDO - The Linked Data Object Mapper for Java

Example