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package com.sun.xml.internal.ws.api.server;

import com.sun.istack.internal.NotNull;
import com.sun.istack.internal.Nullable;


Resolves relative references among SDDocuments. 
 This interface is implemented by the caller of SDDocument.writeTo method so that the SDDocument can correctly produce references to other documents. 
 This mechanism allows the user of WSEndpoint to assign logical URLs to each SDDocument (which is often necessarily done in a transport-dependent way), and then serve description documents. 
Usage Example 1


 HTTP servlet transport chose to expose those metadata documents to HTTP GET requests where each SDDocument is identified by a simple query string "?ID". (HTTP servlet transport
assigns such IDs by itself.)

 In this nameing scheme, when SDDocument X refers to SDDocument Y, it can put a reference as "?IDofY". By implementing DocumentAddressResolver it can do so. 
Author:Kohsuke Kawaguchi
/**
 * Resolves relative references among {@link SDDocument}s.
 *
 * <p>
 * This interface is implemented by the caller of
 * {@link SDDocument#writeTo} method so
 * that the {@link SDDocument} can correctly produce references
 * to other documents.
 *
 * <p>
 * This mechanism allows the user of {@link WSEndpoint} to
 * assign logical URLs to each {@link SDDocument} (which is often
 * necessarily done in a transport-dependent way), and then
 * serve description documents.
 *
 *
 *
 * <h2>Usage Example 1</h2>
 * <p>
 * HTTP servlet transport chose to expose those metadata documents
 * to HTTP GET requests where each {@link SDDocument} is identified
 * by a simple query string "?<i>ID</i>". (HTTP servlet transport
 * assigns such IDs by itself.)
 *
 * <p>
 * In this nameing scheme, when {@link SDDocument} X refers to
 * {@link SDDocument} Y, it can put a reference as "?<i>IDofY</i>".
 * By implementing {@link DocumentAddressResolver} it can do so.
 *
 * @author Kohsuke Kawaguchi
 */
public interface DocumentAddressResolver {
    
Produces a relative reference from one document to another.

Params:
  • current – 
     The document that is being generated.
  • referenced – 
     The document that is referenced.
Returns: The reference to be put inside current to refer to referenced. This can be a relative URL as well as an absolute. If null is returned, then the SDDocument will produce a "implicit reference" (for example, <xs:import> without the @schemaLocation attribute, etc).
/**
     * Produces a relative reference from one document to another.
     *
     * @param current
     *      The document that is being generated.
     * @param referenced
     *      The document that is referenced.
     * @return
     *      The reference to be put inside {@code current} to refer to
     *      {@code referenced}. This can be a relative URL as well as
     *      an absolute. If null is returned, then the {@link SDDocument}
     *      will produce a "implicit reference" (for example, &lt;xs:import>
     *      without the @schemaLocation attribute, etc).
     */
    @Nullable String getRelativeAddressFor(@NotNull SDDocument current, @NotNull SDDocument referenced);
}