1 /**
2 * Copyright 2005-2012 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.rice.krad.inquiry;
17
18 import org.kuali.rice.krad.uif.widget.Inquiry;
19
20 import java.util.Map;
21
22 /**
23 * Provides the contract for implementing an inquiry within the
24 * inquiry framework
25 *
26 * @author Kuali Rice Team (rice.collab@kuali.org)
27 */
28 public interface Inquirable {
29
30 /**
31 * Sets the class for the data object the inquirable should retrieve
32 *
33 * <p>
34 * Must be set before invoking any other operations on the <code>Inquirable</code>,
35 * including the retrieveDataObject method
36 * </p>
37 *
38 * @param dataObjectClass the class of the dataObject that this inquirable should
39 * retrieve
40 */
41 public void setDataObjectClass(Class<?> dataObjectClass);
42
43 /**
44 * Responsible for retrieving the data object from its data source
45 * (database, service call, etc) based on the given map of field
46 * name/value pairs
47 *
48 * <p>
49 * Given map can contain more than fields (primary key or other) necessary
50 * for retrieving the data object. Method will use the fields necessary
51 * based on the metadata for the data object class configured on the inquirable
52 * </p>
53 *
54 * @param fieldValues - a map of string field names and values
55 * @return the data object or null if not found
56 */
57 public Object retrieveDataObject(Map<String, String> fieldValues);
58
59 /**
60 * Invoked by the <code>ViewHelperService</code> to build a link to the
61 * inquiry
62 *
63 * <p>
64 * Note this is used primarily for custom <code>Inquirable</code>
65 * implementations to customize the inquiry class or parameters for an
66 * inquiry. Instead of building the full inquiry link, implementations can
67 * make a callback to
68 * org.kuali.rice.krad.uif.widget.Inquiry.buildInquiryLink(Object, String,
69 * Class<?>, Map<String, String>) given an inquiry class and parameters to
70 * build the link field.
71 * </p>
72 *
73 * @param dataObject - parent object for the inquiry property
74 * @param propertyName - name of the property the inquiry is being built for
75 * @param inquiry - instance of the inquiry widget being built for the property
76 */
77 public void buildInquirableLink(Object dataObject, String propertyName, Inquiry inquiry);
78 }