Session: How to Get Entity ID

Entities does not have to contain an ID property or field. In the case of such an entity, and a need for knowing under what ID it is stored on the server, the getDocumentId method was created.

Syntax

String getDocumentId(Object entity)

Example

public class Comment {
    private String author;
    private String message;

    public String getAuthor() {
        return author;
    }

    public void setAuthor(String author) {
        this.author = author;
    }

    public String getMessage() {
        return message;
    }

    public void setMessage(String message) {
        this.message = message;
    }
}

String commentId = session
    .advanced()
    .getDocumentId(comment);// e.g. comments/1-A