/*

  * Copyright 2005-2008 The Kuali Foundation

  * 

  * 

  * Licensed under the Educational Community 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.opensource.org/licenses/ecl2.php

  * 

  * 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.

  */

 package org.kuali.rice.ksb.messaging.service;

 import org.kuali.rice.ksb.messaging.AsynchronousCall;

 import org.kuali.rice.ksb.messaging.PersistedMessageBO;

 import org.kuali.rice.ksb.messaging.PersistedMessagePayload;

 import org.kuali.rice.ksb.messaging.ServiceInfo;

 import javax.xml.namespace.QName;

 import java.util.List;

 import java.util.Map;

 /**

  * Service for interfacing with the queue of asynchronous messages.

  * 

  * @see org.kuali.rice.ksb.messaging.PersistedMessageBO

  *

  * @author Kuali Rice Team (rice.collab@kuali.org)

  */

 public interface MessageQueueService {

     public List<PersistedMessageBO> findByServiceName(QName serviceName, String methodName);

     public void delete(PersistedMessageBO routeQueue);

     public void save(PersistedMessageBO routeQueue);

     public List<PersistedMessageBO> findAll();

     public List<PersistedMessageBO> findAll(int maxRows);

     /**

      * Finds the PersistedMessageBO identified by the passed-in primary key, if one is

      * available, otherwise returns a null object.

      * 

      * @param routeQueueId The primary key routeQueueId of the message desired.

      * @return A populated PersistedMessageBO instance, if the routeQueueId exists, otherwise

      *         a null object.

      */

     public PersistedMessageBO findByRouteQueueId(Long routeQueueId);

 //    public List getNextDocuments();

     /**

      * Returns a List of RouteQueue documents which are queued for routing.  Will not

      * return more RouteQueues than the value of maxDocuments.

      */

     public List<PersistedMessageBO> getNextDocuments(Integer maxDocuments);

     public PersistedMessagePayload findByPersistedMessageByRouteQueueId(Long routeQueueId);

     /**

      * Finds the persisted messages that match the values passed into the 

      * criteriaValues Map, with an auto-wildcard function, if no wildcard 

      * is passed in.

      * 

      * @param criteriaValues A Map of Key/Value pairs, where the Key is a string holding the field 

      *                       name, and the Value is a string holding the value to match.

      * @param maxRows the maximum number of rows to return from the query.  If -1, then all rows will be returned.

      * @return A populated (or empty) list containing the results of the search.  If no matches are made, 

      *         an empty list will be returned.

      */

     public List<PersistedMessageBO> findByValues(Map<String, String> criteriaValues, int maxRows);

     /**

      * Used to determine the maximum number of retries allowed by the system before the 

      * message goes into Exception.

      * 

      * @return The max retry attempts set in the system.

      */

     public Integer getMaxRetryAttempts();

     public PersistedMessageBO getMessage(ServiceInfo serviceInfo, AsynchronousCall methodCall);

 }