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1   /*
2    * Copyright 2005 The Kuali Foundation
3    * 
4    * Licensed under the Educational Community License, Version 2.0 (the "License");
5    * you may not use this file except in compliance with the License.
6    * You may obtain a copy of the License at
7    * 
8    * http://www.opensource.org/licenses/ecl2.php
9    * 
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS,
12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13   * See the License for the specific language governing permissions and
14   * limitations under the License.
15   */
16  package org.kuali.ole.coa.service;
17  
18  import java.sql.Date;
19  import java.util.Collection;
20  
21  import org.kuali.ole.coa.businessobject.AccountingPeriod;
22  
23  /**
24   * This service interface defines methods necessary for retrieving fully populated AccountingPeriod business objects from the
25   * database that are necessary for transaction processing in the application.
26   */
27  public interface AccountingPeriodService {
28      /**
29       * This method retrieves all valid accounting periods in the system.
30       * 
31       * @return A list of accounting periods in Kuali.
32       */
33      public Collection<AccountingPeriod> getAllAccountingPeriods();
34  
35      /**
36       * This method retrieves a list of all open accounting periods in the system.
37       * 
38       * @return
39       */
40      public Collection<AccountingPeriod> getOpenAccountingPeriods();
41  
42      /**
43       * This method retrieves an individual AccountingPeriod based on the period and fiscal year
44       * 
45       * @param periodCode
46       * @param fiscalYear
47       * @return an accounting period
48       */
49      public AccountingPeriod getByPeriod(String periodCode, Integer fiscalYear);
50  
51      
52      /**
53       * This method allows for AccountingPeriod retrieval via String date.
54       * 
55       * @param String
56       */
57      public AccountingPeriod getByStringDate(String dateString);
58      
59      /**
60       * This method takes a date and returns the corresponding period
61       * 
62       * @param date
63       * @return period that matches the date
64       */
65      public AccountingPeriod getByDate(Date date);
66  
67      /**
68       * This method compares two accounting periods, hopefully by comparing their closing dates. If a is earlier than b, it should
69       * return a negative number; if a is later, it should return a positive number; and if the closing dates are equal, it should
70       * return a 0.
71       * 
72       * @param a the first accounting period to compare
73       * @param b the second accounting period to compare
74       * @return an integer representing which is earlier or later, or if they occur simultaneously
75       */
76      public int compareAccountingPeriodsByDate(AccountingPeriod a, AccountingPeriod b);
77  
78      public void clearCache();
79  }