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#ifndef __com_sun_star_uri_XUriReference_idl__
#define __com_sun_star_uri_XUriReference_idl__

#include <com/sun/star/uno/XInterface.idl>

module com { module sun { module star { module uri {

/**
   represents generic, mutable URI references.

   <p>See <a href="http://www.ietf.org/rfc/rfc2396.txt">RFC&nbsp;2396</a> for a
   description of URI references and related terms.</p>

   <p>This interface only handles generic URI references (both absolute and
   relative).  For specific URI schemes, there will be additional interfaces
   that offer extra, scheme-specific functionality.</p>

   @see com::sun::star::uri::UriReferenceFactory
   which allows to create URI reference objects that support
   <type scope="com::sun::star::uri">XUriReference</type> and additional,
   scheme-specific interfaces.

   @since OpenOffice 2.0
 */
published interface XUriReference: com::sun::star::uno::XInterface {
    /**
       returns the textual representation of the complete URI reference.

       @returns
       the textual representation of the complete URI reference.  The exact
       spelling of the URI reference is retained.
     */
    string getUriReference();

    /**
       returns whether this URI reference is absolute or relative.

       @returns
       <TRUE/> if this URI reference is absolute, <FALSE/> if it is relative.
     */
    boolean isAbsolute();

    /**
       returns the scheme part of this (absolute) URI reference.

       @returns
       the textual representation of the scheme part (with the exact spelling
       retained; without the delimiting &ldquo;<code>:</code>&rdquo;), if this
       is an absolute URI reference; otherwise, an empty <atom>string</atom> is
       returned.
     */
    string getScheme();

    /**
       returns the scheme-specific part of this URI reference.

       <p>For an absolute URI reference, the scheme-specific part is everything
       after the scheme part and the delimiting &ldquo;<code>:</code>&rdquo;,
       and before the optional &ldquo;<code>#</code>&rdquo; and fragment part.
       For a relative URI reference, the scheme-specific part is everything
       before the optional &ldquo;<code>#</code>&rdquo; and fragment part.</p>

       @returns
       the textual representation of the scheme-specific part (with the exact
       spelling retained).
     */
    string getSchemeSpecificPart();

    /**
       returns whether this URI reference is hierarchical or opaque.

       <p>An absolute URI reference is hierarchical if its scheme-specific part
       starts with &ldquo;<code>/</code>&rdquo;.  A relative URI reference is
       always hierarchical.</p>

       @returns
       <TRUE/> if this URI reference is hierarchical, <FALSE/> if it is opaque.
     */
    boolean isHierarchical();

    /**
       returns whether this (hierarchical) URI reference has an authority part.

       @returns
       <TRUE/> if this URI reference is hierarchical and has an authority part.
     */
    boolean hasAuthority();

    /**
       returns the authority part of this (hierarchical) URI reference.

       @returns
       the textual representation of the authority part (with the exact spelling
       retained), if this is a hierarchical URI reference that has an authority
       part; otherwise, an empty <atom>string</atom> is returned.
     */
    string getAuthority();

    /**
       returns the path part of this URI reference.

       @returns
       the textual representation of the path part (with the exact spelling
       retained), if this is a hierarchical URI reference; for an opaque URI
       reference, the scheme-specific part (with the exact spelling retained) is
       returned.
     */
    string getPath();

    /**
       returns whether this (relative) URI reference has a relative path.

       @returns
       <TRUE/> if this URI reference is relative and has a relative path.
     */
    boolean hasRelativePath();

    /**
       returns the number of path segments of this (hierarchical) URI reference.

       <p>For an opaque URI reference, and for a hierarchical URI reference with
       an empty path, the number of path segments is zero.  For a hierarchical
       URI reference with an absolute, non-empty path, the number of path
       segments equals the number of &ldquo;<code>/</code>&rdquo; delimiters.
       For a hierarchical URI reference with a relative, non-empty path, the
       number of path segments equals the number of &ldquo;<code>/</code>&rdquo;
       delimiters, plus one.</p>

       @returns
       the number of path segments.
     */
    long getPathSegmentCount();

    /**
       returns a given path segment of this (hierarchical) URI reference.

       @param index
       the index of the path segment, starting at zero.

       @returns
       the textual representation of the given path segment (with the exact
       spelling retained, without any delimiting &ldquo;<code>/</code>&rdquo;),
       if this URI reference is hierarchical and has that many path segments;
       otherwise, and in particular if <code>index</code> is negative, an empty
       <atom>string</atom> is returned.
     */
    string getPathSegment([in] long index);

    /**
       returns whether this (hierarchical) URI reference has a query part.

       @returns
       <TRUE/> if this URI reference is hierarchical and has a query part.
     */
    boolean hasQuery();

    /**
       returns the query part of this (hierarchical) URI reference.

       @returns
       the textual representation of the query part (with the exact spelling
       retained; without the delimiting &ldquo;<code>?</code>&rdquo;), if this
       is a hierarchical URI reference that has a query part; otherwise, an
       empty <atom>string</atom> is returned.
     */
    string getQuery();

    /**
       returns whether this URI reference has a fragment part.

       @returns
       <TRUE/> if this URI reference has a fragment part.
     */
    boolean hasFragment();

    /**
       returns the fragment part of this URI reference.

       @returns
       the textual representation of the fragment part (with the exact spelling
       retained; without the delimiting &ldquo;<code>#</code>&rdquo;), if this
       is a URI reference that has a fragment part; otherwise, an empty
       <atom>string</atom> is returned.
     */
    string getFragment();

    /**
       sets the fragment part of this URI reference.

       @param fragment
       the textual representation of the new fragment part.  The exact spelling
       will be preserved, and no escaping is performed.
     */
    void setFragment([in] string fragment);

    /**
       clears the fragment part of this URI reference.
     */
    void clearFragment();
};

}; }; }; };

#endif