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Date: Thu, 17 Nov 2016 22:55:58 +0000 (UTC)
From: "ASF GitHub Bot (JIRA)" <jira@apache.org>
To: dev@commonsrdf.incubator.apache.org
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Subject: [jira] [Commented] (COMMONSRDF-47) RDFSyntax should be interface,
 not enum
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archived-at: Thu, 17 Nov 2016 22:56:06 -0000


    [ https://issues.apache.org/jira/browse/COMMONSRDF-47?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15675059#comment-15675059 ] 

ASF GitHub Bot commented on COMMONSRDF-47:
------------------------------------------

Github user ansell commented on a diff in the pull request:

    https://github.com/apache/incubator-commonsrdf/pull/27#discussion_r88350685
  
    --- Diff: api/src/main/java/org/apache/commons/rdf/api/RDFSyntax.java ---
    @@ -22,6 +22,124 @@
     import java.util.Optional;
     
     /**
    + * An RDF syntax, e.g. as used for parsing and writing RDF.
    + * <p>
    + * An RDF syntax is uniquely identified by its {@link #mediaType()}, and has a
    + * suggested {@link #fileExtension()}.
    + * <p>
    + * Some of the RDF syntaxes may {@link #supportsDataset()}, meaning they can
    + * represent {@link Quad}s.
    + * <p>
    + * An enumeration of the official RDF 1.1 syntaxes is available in 
    + * {@link OfficialRDFSyntax} - for convenience they are also accessible
    + * as constants here, e.g. <code>RDFSyntax.JSONLD</code>.
    + * 
    + */
    +public interface RDFSyntax {
    + 
    +    public static OfficialRDFSyntax JSONLD = OfficialRDFSyntax.JSONLD;
    +    public static OfficialRDFSyntax TURTLE = OfficialRDFSyntax.TURTLE;
    +    public static OfficialRDFSyntax NQUADS = OfficialRDFSyntax.NQUADS;
    +    public static OfficialRDFSyntax NTRIPLES = OfficialRDFSyntax.NTRIPLES;
    +    public static OfficialRDFSyntax RDFA_HTML = OfficialRDFSyntax.RDFA_HTML;
    +    public static OfficialRDFSyntax RDFA_XHTML = OfficialRDFSyntax.RDFA_XHTML;
    +    public static OfficialRDFSyntax RDFXML = OfficialRDFSyntax.RDFXML;
    +    public static OfficialRDFSyntax TRIG = OfficialRDFSyntax.TRIG;
    +    
    +    /**
    +     * A short name of the RDF Syntax.
    +     * <p>
    +     * The name typically corresponds to the {@link Enum#name()} of for
    +     * {@link OfficialRDFSyntax}, e.g. <code>JSONLD</code>.
    +     * 
    +     * @return Short name for RDF syntax
    +     */
    +    public String name();
    +
    +    /**
    +     * The title of the RDF Syntax.
    +     * <p>
    +     * This is generally the title of the corresponding standard, 
    +     * e.g. <em>RDF 1.1 Turtle</em>.
    +     * 
    +     * @return Title of RDF Syntax
    +     */
    +    public String title();    
    +    
    +    /**
    +     * The <a href="https://tools.ietf.org/html/rfc2046">IANA media type</a> for
    +     * the RDF syntax.
    +     * <p>
    +     * The media type can be used as part of <code>Content-Type</code> and
    +     * <code>Accept</code> for <em>content negotiation</em> in the
    +     * <a href="https://tools.ietf.org/html/rfc7231#section-3.1.1.1">HTTP
    +     * protocol</a>.
    +     */
    +    public String mediaType();
    --- End diff --
    
    Do you plan on supporting alternative media types here, to either support old media types or other commonly used media types?


> RDFSyntax should be interface, not enum
> ---------------------------------------
>
>                 Key: COMMONSRDF-47
>                 URL: https://issues.apache.org/jira/browse/COMMONSRDF-47
>             Project: Apache Commons RDF
>          Issue Type: Bug
>          Components: api
>    Affects Versions: 0.2.0
>            Reporter: Stian Soiland-Reyes
>            Assignee: Stian Soiland-Reyes
>
> [~p_ansell] raises in [pull request 25|https://github.com/apache/incubator-commonsrdf/pull/25#discussion_r85231845]
> {quote}
> Using enum for RDFSyntax is a bad idea unless it overrides an interface and the interface is used in method signatures instead of the enum. There are many other RDFSyntaxes, and enum (without implementing an interface) is only suited to cases where the full set are known a priori.
> {quote}


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