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1
56 package org.objectstyle.cayenne.project.validator;
57
58 import java.util.Iterator  ;
59
60 import org.objectstyle.cayenne.map.DataMap;
61 import org.objectstyle.cayenne.map.ObjEntity;
62 import org.objectstyle.cayenne.project.ProjectPath;
63 import org.objectstyle.cayenne.query.Query;
64 import org.objectstyle.cayenne.query.SQLTemplate;
65 import org.objectstyle.cayenne.util.Util;
66
67
73 public class SQLTemplateValidator extends TreeNodeValidator {
74
75 public void validateObject(ProjectPath treeNodePath, Validator validator) {
76 SQLTemplate query = (SQLTemplate) treeNodePath.getObject();
77
78 validateName(query, treeNodePath, validator);
79 validateRoot(query, treeNodePath, validator);
80 validateResultType(query, treeNodePath, validator);
81 validateDefaultSQL(query, treeNodePath, validator);
82 }
83
84 protected void validateDefaultSQL(
85 SQLTemplate query,
86 ProjectPath path,
87 Validator validator) {
88
89 if (Util.isEmptyString(query.getDefaultTemplate())) {
90
92 Iterator it = query.getTemplateKeys().iterator();
93 while (it.hasNext()) {
94 String key = (String ) it.next();
95 if (!Util.isEmptyString(query.getCustomTemplate(key))) {
96 return;
97 }
98 }
99
100 validator.registerWarning("Query has no default SQL template", path);
101 }
102 }
103
104 protected void validateRoot(Query query, ProjectPath path, Validator validator) {
105 DataMap map = (DataMap) path.firstInstanceOf(DataMap.class);
106 if (query.getRoot() == null && map != null) {
107 validator.registerWarning("Query has no root", path);
108 }
109 }
110
111 protected void validateName(Query query, ProjectPath path, Validator validator) {
112 String name = query.getName();
113
114 if (Util.isEmptyString(name)) {
116 validator.registerError("Unnamed Query.", path);
117 return;
118 }
119
120 DataMap map = (DataMap) path.getObjectParent();
121 if (map == null) {
122 return;
123 }
124
125 Iterator it = map.getQueries().iterator();
127 while (it.hasNext()) {
128 Query otherQuery = (Query) it.next();
129 if (otherQuery == query) {
130 continue;
131 }
132
133 if (name.equals(otherQuery.getName())) {
134 validator.registerError("Duplicate Query name: " + name + ".", path);
135 break;
136 }
137 }
138 }
139
140 protected void validateResultType(
141 SQLTemplate query,
142 ProjectPath path,
143 Validator validator) {
144
145 if (query.isSelecting()
146 && !query.isFetchingDataRows()
147 && query.getRoot() != null
148 && !(query.getRoot() instanceof ObjEntity || query.getRoot() instanceof Class )) {
149
150 validator.registerWarning(
151 "Missing result entity for SQLTemplate fetching DataObjects.",
152 path);
153 }
154 }
155 } |
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