1 /* ================================================================
2 * Cewolf : Chart enabling Web Objects Framework
3 * ================================================================
5 * Project Info: http://cewolf.sourceforge.net
6 * Project Lead: Guido Laures (guido@laures.de);
8 * (C) Copyright 2002, by Guido Laures
10 * This library is free software; you can redistribute it and/or modify it under the terms
11 * of the GNU Lesser General Public License as published by the Free Software Foundation;
12 * either version 2.1 of the License, or (at your option) any later version.
14 * This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
15 * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
16 * See the GNU Lesser General Public License for more details.
18 * You should have received a copy of the GNU Lesser General Public License along with this
19 * library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
20 * Boston, MA 02111-1307, USA.
23 package de.laures.cewolf.taglib.tags;
25 import javax.servlet.jsp.JspException;
27 import de.laures.cewolf.DatasetProducer;
28 import de.laures.cewolf.taglib.DataAware;
31 * Tag <producer> which defines a DatasetProducer.
33 * @author Guido Laures
35 public class ProducerTag extends AbstractParameterizedObjectTag {
37 private boolean useCache = true;
39 public int doEndTag() throws JspException {
40 DatasetProducer dataProducer = null;
42 dataProducer = (DatasetProducer) getObject();
43 if (dataProducer == null) {
44 throw new JspException("Could not find datasetproducer under ID '" + getId() + "'");
46 } catch (ClassCastException cce) {
47 throw new JspException(
51 + getObject().getClass().getName()
52 + "'.\nType expected:"
53 + DatasetProducer.class.getName());
55 DataAware dw = (DataAware) findAncestorWithClass(this, DataAware.class);
56 log.debug("setting data config on " + dw);
57 log.debug("useCache = " + useCache);
58 addParameter(DatasetProducer.PRODUCER_ATTRIBUTE_NAME, getId());
59 dw.setDataProductionConfig(dataProducer, getParameters(), useCache);
60 return doAfterEndTag(EVAL_BODY_INCLUDE);
65 * @param useCache The useCache to set
67 public void setUsecache(boolean useCache) {
68 this.useCache = useCache;