01: package org.mandarax.zkb.framework;
02:
03: /**
04: * Copyright (C) 1999-2004 Jens Dietrich (mailto:mandarax@jbdietrich.com)
05: *
06: * This library is free software; you can redistribute it and/or
07: * modify it under the terms of the GNU Lesser General Public
08: * License as published by the Free Software Foundation; either
09: * version 2 of the License, or (at your option) any later version.
10: *
11: * This library is distributed in the hope that it will be useful,
12: * but WITHOUT ANY WARRANTY; without even the implied warranty of
13: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14: * Lesser General Public License for more details.
15: *
16: * You should have received a copy of the GNU Lesser General Public
17: * License along with this library; if not, write to the Free Software
18: * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19: */
20:
21: import org.jdom.Element;
22: import org.mandarax.kernel.LogicFactory;
23: import org.mandarax.sql.SQLClauseSet;
24: import org.mandarax.zkb.ObjectPersistencyService;
25: import org.mandarax.zkb.ZKBException;
26:
27: /**
28: * An adapter class for sql clasue sets.
29: * @see org.mandarax.sql.SQLClauseSet
30: * @author <A href="http://www-ist.massey.ac.nz/JBDietrich" target="_top">Jens Dietrich</A>
31: * @version 3.4 <7 March 05>
32: * @since 2.2
33: */
34:
35: public class Adapter4SQLClauseSets extends AbstractAdapter {
36:
37: /**
38: * Export an object, i.e., convert it to an element in the DOM.
39: * @param obj an object
40: * @param driver the generic driver
41: * @param ops the object persistency service
42: * @exception a ZKBException is thrown if export fails
43: */
44: public Element exportObject(Object obj, GenericDriver driver,
45: ObjectPersistencyService ops) throws ZKBException {
46: check(obj, SQLClauseSet.class);
47: Element e = new Element(SQL_CLAUSE_SET);
48: assignURI(e, ops, obj);
49: return e;
50: }
51:
52: /**
53: * Build an object from an XML element.
54: * @param e an element
55: * @param driver the generic driver
56: * @param ops the object persistency service
57: * @param lfactory the logic factory used to create objects
58: * @exception a ZKBException is thrown if import fails
59: */
60: public Object importObject(Element e, GenericDriver driver,
61: ObjectPersistencyService ops, LogicFactory lfactory)
62: throws ZKBException {
63: return getObjectByURI(e, ops);
64: }
65:
66: /**
67: * Get the name of the associated tag (element).
68: * @return a string
69: */
70: public String getTagName() {
71: return SQL_CLAUSE_SET;
72: }
73:
74: /**
75: * Print the DTD associated with this adapter on a string buffer.
76: * @param out the buffer to print on.
77: */
78: public void printDTD(StringBuffer out) {
79: out.append("<!ELEMENT sql_clause_set (#PCDATA)>\n");
80: }
81:
82: }
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