/*
 * Copyright 2004-2005 The Apache Software Foundation.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

/*
 * XSEC
 *
 * XKMSPendingRequest := Interface for PendingRequest Messages
 *
 * $Id: XKMSPendingRequest.hpp 351364 2005-06-04 11:30:26Z blautenb $
 *
 */

#ifndef XKMSPENDINGREQUEST_INCLUDE
#define XKMSPENDINGREQUEST_INCLUDE

// XSEC Includes

#include <xsec/framework/XSECDefs.hpp>
#include <xsec/xkms/XKMSRequestAbstractType.hpp>

class XKMSQueryKeyBinding;

/**
 * @ingroup xkms
 */

/**
 * @brief Interface definition for the PendingRequest elements
 *
 * The \<PendingRequest\> is used in Asynchronous processing.  A client
 * uses the PendingRequest element to request a response to a request that
 * was placed in the past, and to which the service originally provided
 * a "Pending" response - i.e. work yet to be done.
 *
 * The schema definition for PendingRequest is as follows :
 *
 * \verbatim
   <!-- PendingRequest -->
   <element name="PendingRequest" type="xkms:PendingRequestType"/>
   <complexType name="PendingRequestType">
      <complexContent>
         <extension base="xkms:RequestAbstractType">
            <attribute name="ResponseId" type="NCName" use="required"/>
         </extension>
      </complexContent>
   </complexType>
   <!-- /PendingRequest -->
\endverbatim
 */

class XKMSPendingRequest : public XKMSRequestAbstractType {

	/** @name Constructors and Destructors */
	//@{

protected:

	XKMSPendingRequest() {};

public:

	virtual ~XKMSPendingRequest() {};

	/** @name Getter Interface Methods */
	//@{

	/**
	 * \brief Return the element at the base of the message
	 */

	virtual XERCES_CPP_NAMESPACE_QUALIFIER DOMElement * getElement(void) const = 0;

	/**
	 * \brief Return the ResponseId
	 *
	 * The ResponseId equates to the Id of the first response the service returned,
	 * which must (by definition) have had a response code of "Pending".  Together
	 * with the OriginalRequestId, this can be used by the service to uniquley
	 * identify the original request for which this PendingRequest refers.
	 *
	 * @return A pointer to the XMLCh string holding the ResponseId
	 */

	virtual const XMLCh * getResponseId(void) const = 0;

	//@}

	/** @name Setter Interface Methods */
	//@{

	/**
	 * \brief Set the ResponseId
	 *
	 * Allows a calling application to over-ride the configured responseId
	 *
	 * @param responseId The new responseId for this element
	 */

	virtual void setResponseId(const XMLCh * responseId) = 0;

	//@}

private:

	// Unimplemented
	XKMSPendingRequest(const XKMSPendingRequest &);
	XKMSPendingRequest & operator = (const XKMSPendingRequest &);

};

#endif /* XKMSPENDINGREQUEST_INCLUDE */