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1 package org.hibernate.engine;
3
4 import java.io.Serializable  ;
5 import java.util.HashMap ;
6 import java.util.Map ;
7
8 import org.hibernate.MappingException;
9 import org.hibernate.util.ArrayHelper;
10
11
17 public abstract class CascadeStyle implements Serializable {
18
19
22 public abstract boolean doCascade(CascadingAction action);
23
24
27 public boolean reallyDoCascade(CascadingAction action) {
28 return doCascade(action);
29 }
30
31
34 public boolean hasOrphanDelete() {
35 return false;
36 }
37
38 public static final class MultipleCascadeStyle extends CascadeStyle {
39 private final CascadeStyle[] styles;
40 public MultipleCascadeStyle(CascadeStyle[] styles) {
41 this.styles = styles;
42 }
43 public boolean doCascade(CascadingAction action) {
44 for (int i=0; i<styles.length; i++) {
45 if ( styles[i].doCascade(action) ) return true;
46 }
47 return false;
48 }
49 public boolean reallyDoCascade(CascadingAction action) {
50 for (int i=0; i<styles.length; i++) {
51 if ( styles[i].reallyDoCascade(action) ) return true;
52 }
53 return false;
54 }
55 public boolean hasOrphanDelete() {
56 for (int i=0; i<styles.length; i++) {
57 if ( styles[i].hasOrphanDelete() ) return true;
58 }
59 return false;
60 }
61 public String toString() {
62 return ArrayHelper.toString(styles);
63 }
64 }
65
66
69 public static final CascadeStyle ALL_DELETE_ORPHAN = new CascadeStyle() {
70 public boolean doCascade(CascadingAction action) {
71 return true;
72 }
73 public boolean hasOrphanDelete() {
74 return true;
75 }
76 public String toString() {
77 return "STYLE_ALL_DELETE_ORPHAN";
78 }
79 };
80
81
84 public static final CascadeStyle ALL = new CascadeStyle() {
85 public boolean doCascade(CascadingAction action) {
86 return true;
87 }
88 public String toString() {
89 return "STYLE_ALL";
90 }
91 };
92
93
96 public static final CascadeStyle UPDATE = new CascadeStyle() {
97 public boolean doCascade(CascadingAction action) {
98 return action==CascadingAction.SAVE_UPDATE || action==CascadingAction.SAVE_UPDATE_COPY;
99 }
100 public String toString() {
101 return "STYLE_SAVE_UPDATE";
102 }
103 };
104
105
108 public static final CascadeStyle LOCK = new CascadeStyle() {
109 public boolean doCascade(CascadingAction action) {
110 return action==CascadingAction.LOCK;
111 }
112 public String toString() {
113 return "STYLE_LOCK";
114 }
115 };
116
117
120 public static final CascadeStyle REFRESH = new CascadeStyle() {
121 public boolean doCascade(CascadingAction action) {
122 return action==CascadingAction.REFRESH;
123 }
124 public String toString() {
125 return "STYLE_REFRESH";
126 }
127 };
128
129
132 public static final CascadeStyle EVICT = new CascadeStyle() {
133 public boolean doCascade(CascadingAction action) {
134 return action==CascadingAction.EVICT;
135 }
136 public String toString() {
137 return "STYLE_EVICT";
138 }
139 };
140
141
144 public static final CascadeStyle REPLICATE = new CascadeStyle() {
145 public boolean doCascade(CascadingAction action) {
146 return action==CascadingAction.REPLICATE;
147 }
148 public String toString() {
149 return "STYLE_REPLICATE";
150 }
151 };
152
155 public static final CascadeStyle MERGE = new CascadeStyle() {
156 public boolean doCascade(CascadingAction action) {
157 return action==CascadingAction.MERGE;
158 }
159 public String toString() {
160 return "STYLE_MERGE";
161 }
162 };
163
164
167 public static final CascadeStyle PERSIST = new CascadeStyle() {
168 public boolean doCascade(CascadingAction action) {
169 return action==CascadingAction.PERSIST;
170 }
171 public String toString() {
172 return "STYLE_PERSIST";
173 }
174 };
175
176
179 public static final CascadeStyle DELETE = new CascadeStyle() {
180 public boolean doCascade(CascadingAction action) {
181 return action==CascadingAction.DELETE;
182 }
183 public String toString() {
184 return "STYLE_DELETE";
185 }
186 };
187
188
191 public static final CascadeStyle DELETE_ORPHAN = new CascadeStyle() {
192 public boolean doCascade(CascadingAction action) {
193 return action==CascadingAction.DELETE || action==CascadingAction.SAVE_UPDATE;
194 }
195 public boolean reallyDoCascade(CascadingAction action) {
196 return action==CascadingAction.DELETE;
197 }
198 public boolean hasOrphanDelete() {
199 return true;
200 }
201 public String toString() {
202 return "STYLE_DELETE_ORPHAN";
203 }
204 };
205
206
209 public static final CascadeStyle NONE = new CascadeStyle() {
210 public boolean doCascade(CascadingAction action) {
211 return false;
212 }
213 public String toString() {
214 return "STYLE_NONE";
215 }
216 };
217
218 CascadeStyle() {}
219
220 static final Map STYLES = new HashMap ();
221 static {
222 STYLES.put("all", ALL);
223 STYLES.put("all-delete-orphan", ALL_DELETE_ORPHAN);
224 STYLES.put("save-update", UPDATE);
225 STYLES.put("persist", PERSIST);
226 STYLES.put("merge", MERGE);
227 STYLES.put("lock", LOCK);
228 STYLES.put("refresh", REFRESH);
229 STYLES.put("replicate", REPLICATE);
230 STYLES.put("evict", EVICT);
231 STYLES.put("delete", DELETE);
232 STYLES.put("delete-orphan", DELETE_ORPHAN);
233 STYLES.put("none", NONE);
234 }
235
236 public static CascadeStyle getCascadeStyle(String cascade) {
237 CascadeStyle style = (CascadeStyle) STYLES.get(cascade);
238 if (style==null) {
239 throw new MappingException("Unsupported cascade style: " + cascade);
240 }
241 else {
242 return style;
243 }
244 }
245 } |
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