MimeDir and VCard Java Interfaces

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Hi.

I am writing to ask for feedback on the attached Java interfaces which I
have created for exposing MimeDir and vCard data.

As part of my work for my employer, Athabasca University, I have created
a Java interface for exposing IEEE LTSC Learning Object Metadata (LOM). 
The LOM standard makes use of vCards for storing information about
metadata contributors.  I have thus desired a pure Java interface for
exposing associated vCard data through my LOM API, which is independent
of any particular vCard or MimeDir parser implementation.

Feedback appreciated, thanks.

-- 
Chris Hubick
mailto:[email protected]
mailto:[email protected]
http://adlib.athabascau.ca/~hubick/
http://www.hubick.com/

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Content-type: text/x-java; name=MimeDir.java; charset=UTF-8
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Content-disposition: attachment; filename=MimeDir.java

/* Licensed under the Free Software Foundation (FSF.org) GNU Lesser General Public License (LGPL). */
package org.ietf.mimedir;

import java.util.Date;
import java.net.URI;

/**
 * This is a Java interface for exposing (read-only) RFC 2425 Mime-Directory information.
 */
public interface MimeDir {

  public ContentLine[] getContent();

  public interface ContentLine {

    public String getGroup();
    public String getName();
    public Parameter[] getParameters();
    public ValueType getValue();

    public interface Parameter {
      public String getName();
      public String getValue();
    } // MimeDir.ContentLine.Parameter

  } // MimeDir.ContentLine

  public interface ValueType {
    public byte[] getValue();
  } // MimeDir.ValueType

  public interface TextValueType extends ValueType {
    public String[] getTextValues();
  } // MimeDir.TextValueType

  public interface IntegerValueType extends ValueType {
    public Integer[] getIntegerValues();
  } // MimeDir.IntegerValueType

  public interface FloatValueType extends ValueType {
    public Float[] getFloatValues();
  } // MimeDir.FloatValueType

  public interface BooleanValueType extends ValueType {
    public Boolean getBooleanValue();
  } // MimeDir.BooleanValueType

  public interface DateValueType extends ValueType {
    public Date[] getDateValues();
  } // MimeDir.DateValueType

  public interface TimeValueType extends ValueType {
    public Date[] getTimeValues();
  } // MimeDir.TimeValueType

  public interface DateTimeValueType extends ValueType {
    public Date[] getDateTimeValues();
  } // MimeDir.DateTimeValueType

  public interface URIValueType extends ValueType {
    public URI getURIValue();
  } // MimeDir.URIValueType

} // MimeDir

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Content-type: text/x-java; name=VCard.java; charset=UTF-8
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Content-disposition: attachment; filename=VCard.java

/* Licensed under the Free Software Foundation (FSF.org) GNU Lesser General Public License (LGPL). */
package org.ietf.mimedir.vcard;

import org.ietf.mimedir.MimeDir;

/**
 * This is a Java interface for exposing (read-only) RFC 2426 vCard information.
 */
public interface VCard extends MimeDir {

  public interface BinaryValueType extends ValueType {
    public byte[] getBinaryValue();
  } // VCard.BinaryValueType

  public interface VCardValueType extends TextValueType {
    public VCard getVCardValue();
  } // VCard.VCardValueType

  public interface PhoneNumberValueType extends TextValueType {
    public String getPhoneNumberValue();
  } // VCard.PhoneNumberValueType

} // VCard

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