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package com.sun.jersey.spi.container;

import com.sun.jersey.api.model.AbstractResourceMethod;
import com.sun.jersey.spi.dispatch.RequestDispatcher;

/**
 * Service-provider interface for creating {@link RequestDispatcher} instances.
 * 
 * An implementation (a service-provider) identifies itself by placing a 
 * provider-configuration file (if not already present), 
 * "com.sun.research.ws.rest.spi.invoker.ResourceMethodDispatchProvider" in the 
 * resource directory META-INF/services, and including the fully qualified
 * service-provider-class of the implementation in the file.
 * 

 * A provider will examine the model of the Web resource method and 
 * determine if an invoker can be created for that Web resource method.
 * 
 * Multiple providers can specify the support for different Web resource method
 * patterns, ranging from simple patterns (such as void return and input 
 * parameters) to complex patterns that take type URI and query arguments 
 * and HTTP request headers as typed parameters.
 * 
 * 
 * @author [email protected]
 */
public interface ResourceMethodDispatchProvider {
    
    /**
     * Create a {@link RequestDispatcher} for a resource method of
     * a resource.
     * 
     * @param abstractResourceMethod the abstract resource method.
     * @return the request dispatcher, otherwise null if it could not be created
     *         for the abstract resource method.
     */
    RequestDispatcher create(AbstractResourceMethod abstractResourceMethod);    
}