001: /*
002: * Copyright (c) 1998-2008 Caucho Technology -- all rights reserved
003: *
004: * This file is part of Resin(R) Open Source
005: *
006: * Each copy or derived work must preserve the copyright notice and this
007: * notice unmodified.
008: *
009: * Resin Open Source is free software; you can redistribute it and/or modify
010: * it under the terms of the GNU General Public License as published by
011: * the Free Software Foundation; either version 2 of the License, or
012: * (at your option) any later version.
013: *
014: * Resin Open Source is distributed in the hope that it will be useful,
015: * but WITHOUT ANY WARRANTY; without even the implied warranty of
016: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
017: * of NON-INFRINGEMENT. See the GNU General Public License for more
018: * details.
019: *
020: * You should have received a copy of the GNU General Public License
021: * along with Resin Open Source; if not, write to the
022: * Free SoftwareFoundation, Inc.
023: * 59 Temple Place, Suite 330
024: * Boston, MA 02111-1307 USA
025: *
026: * @author Scott Ferguson
027: */
028:
029: package com.caucho.ejb.cfg21;
030:
031: import com.caucho.ejb.cfg.*;
032: import com.caucho.ejb.cfg21.CmpRelation;
033: import com.caucho.amber.field.AbstractField;
034: import com.caucho.config.ConfigException;
035: import com.caucho.util.L10N;
036:
037: import javax.annotation.PostConstruct;
038: import java.util.Collection;
039:
040: /**
041: * Configuration for a cmp-relation.
042: */
043: public class CmpRelationRole {
044: private static L10N L = new L10N(CmpRelationRole.class);
045:
046: private CmpRelation _relation;
047: private CmpRelationRole _target;
048:
049: private String _location;
050:
051: private String _ejbName;
052: private String _fieldName;
053:
054: private boolean _cascadeDelete;
055: private String _multiplicity;
056:
057: private SqlRelation[] _sqlColumns = new SqlRelation[0];
058: private String _orderBy;
059:
060: private AbstractField _amberField;
061: private Class _javaType;
062:
063: private boolean _isImplicit;
064:
065: /**
066: * Creates a new cmp-relation
067: */
068: public CmpRelationRole(CmpRelation relation) {
069: _relation = relation;
070: }
071:
072: /**
073: * Sets the description.
074: */
075: public void setDescription(String description) {
076: }
077:
078: /**
079: * Gets the owning relation.
080: */
081: public CmpRelation getRelation() {
082: return _relation;
083: }
084:
085: /**
086: * Gets the target
087: */
088: public CmpRelationRole getTarget() {
089: return _target;
090: }
091:
092: /**
093: * Sets the target
094: */
095: public void setTarget(CmpRelationRole target) {
096: _target = target;
097: }
098:
099: /**
100: * Sets the location.
101: */
102: public void setConfigLocation(String filename, int line) {
103: _location = filename + ":" + line + ": ";
104: }
105:
106: /**
107: * Gets the location.
108: */
109: public String getLocation() {
110: return _location;
111: }
112:
113: /**
114: * Sets the ejb-relationship-role-name
115: */
116: public void setEjbRelationshipRoleName(String name) {
117: }
118:
119: /**
120: * Returns the source ejb name.
121: */
122: public String getEJBName() {
123: return _ejbName;
124: }
125:
126: /**
127: * Sets the ejb-name.
128: */
129: public void setEJBName(String ejbName) {
130: _ejbName = ejbName;
131: }
132:
133: /**
134: * Returns the field name.
135: */
136: public String getFieldName() {
137: return _fieldName;
138: }
139:
140: /**
141: * Sets the field name.
142: */
143: public void setFieldName(String fieldName) {
144: _fieldName = fieldName;
145: }
146:
147: /**
148: * Returns the cascade-delete property.
149: */
150: public boolean getCascadeDelete() {
151: return _cascadeDelete;
152: }
153:
154: /**
155: * Sets the cascade-delete property.
156: */
157: public void setCascadeDelete(boolean cascadeDelete) {
158: _cascadeDelete = cascadeDelete;
159: }
160:
161: /**
162: * Returns the multiplicity property.
163: */
164: public String getMultiplicity() {
165: return _multiplicity;
166: }
167:
168: /**
169: * Sets the source multiplicity property.
170: */
171: public void setMultiplicity(String multiplicity)
172: throws ConfigException {
173: _multiplicity = multiplicity;
174:
175: if (multiplicity == null || !multiplicity.equals("One")
176: && !multiplicity.equals("Many"))
177: throw new ConfigException(
178: L
179: .l(
180: "'{0}' is an unknown multiplicity. 'One' and 'Many' are the only allowed values.",
181: multiplicity));
182: }
183:
184: /**
185: * Returns the source sql columns.
186: */
187: public SqlRelation[] getSQLColumns() {
188: return _sqlColumns;
189: }
190:
191: /**
192: * Add a sql columns.
193: */
194: public void addSQLColumn(String sqlColumn, String references) {
195: SqlRelation relation = new SqlRelation(_fieldName);
196:
197: relation.setSQLColumn(sqlColumn);
198: relation.setReferences(references);
199:
200: if (_sqlColumns == null)
201: _sqlColumns = new SqlRelation[] { relation };
202: else {
203: SqlRelation[] newColumns = new SqlRelation[_sqlColumns.length + 1];
204: System.arraycopy(_sqlColumns, 0, newColumns, 0,
205: _sqlColumns.length);
206:
207: newColumns[_sqlColumns.length] = relation;
208: _sqlColumns = newColumns;
209: }
210: }
211:
212: public SqlColumn createSqlColumn() {
213: return new SqlColumn();
214: }
215:
216: /**
217: * Returns the order-by property.
218: */
219: public String getOrderBy() {
220: return _orderBy;
221: }
222:
223: /**
224: * Sets the order-by property.
225: */
226: public void setOrderBy(String orderBy) {
227: _orderBy = orderBy;
228: }
229:
230: /**
231: * Returns true if the role is implicit.
232: */
233: public boolean isImplicit() {
234: return _isImplicit;
235: }
236:
237: /**
238: * Sets true if the role is implicit.
239: */
240: public void setImplicit(boolean isImplicit) {
241: _isImplicit = isImplicit;
242: }
243:
244: /**
245: * Sets the Java type.
246: */
247: public void setJavaType(Class cl) {
248: _javaType = cl;
249: }
250:
251: /**
252: * Sets the amber type.
253: */
254: public void setAmberField(AbstractField field) {
255: _amberField = field;
256: }
257:
258: /**
259: * Gets the amber type.
260: */
261: public AbstractField getAmberField() {
262: return _amberField;
263: }
264:
265: /**
266: * Return true for collections.
267: */
268: public boolean isCollection() {
269: return _javaType != null
270: && Collection.class.isAssignableFrom(_javaType);
271: }
272:
273: /**
274: * Merges with the target.
275: */
276: public void merge(CmpRelationRole newRole) {
277: if (_sqlColumns.length == 0)
278: _sqlColumns = newRole.getSQLColumns();
279: }
280:
281: // EJB config
282:
283: /**
284: * Sets the relationship-role-source.
285: */
286: public RoleSource createRelationshipRoleSource() {
287: return new RoleSource();
288: }
289:
290: /**
291: * Sets the relationship-role-source.
292: */
293: public CmrField createCmrField() {
294: return new CmrField();
295: }
296:
297: /**
298: * Returns true if this is the same relation.
299: */
300: public boolean equals(Object o) {
301: if (!(o instanceof CmpRelationRole))
302: return false;
303:
304: CmpRelationRole role = (CmpRelationRole) o;
305:
306: if (!_ejbName.equals(role._ejbName))
307: return false;
308:
309: if (_fieldName == null || role._fieldName == null)
310: return _fieldName == role._fieldName;
311:
312: if (!_fieldName.equals(role._fieldName))
313: return false;
314:
315: return true;
316: }
317:
318: public class RoleSource {
319: public void setEJBName(String name) {
320: CmpRelationRole.this .setEJBName(name);
321: }
322: }
323:
324: public class CmrField {
325: public void setCmrFieldName(String name) {
326: CmpRelationRole.this .setFieldName(name);
327: }
328:
329: public void setCmrFieldType(String name) {
330: // XXX: CmpRelationRole.this.setFieldName(name);
331: }
332:
333: public SqlColumn createSqlColumn() {
334: return new SqlColumn();
335: }
336: }
337:
338: public class SqlColumn {
339: private String _value;
340: private String _references;
341:
342: public void setReferences(String references) {
343: _references = references;
344: }
345:
346: public void setValue(String value) {
347: _value = value;
348: }
349:
350: public void addText(String value) {
351: _value = value;
352: }
353:
354: @PostConstruct
355: public void init() {
356: CmpRelationRole.this.addSQLColumn(_value, _references);
357: }
358: }
359: }
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