/* ================================================================
* Cewolf : Chart enabling Web Objects Framework
* ================================================================
*
* Project Info: http://cewolf.sourceforge.net
* Project Lead: Guido Laures (guido@laures.de);
*
* (C) Copyright 2002, by Guido Laures
*
* This library is free software; you can redistribute it and/or modify it under the terms
* of the GNU Lesser General Public License as published by the Free Software Foundation;
* either version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License along with this
* library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
* Boston, MA 02111-1307, USA.
*/
package de.laures.cewolf.taglib.tags;
import javax.servlet.jsp.JspException;
import de.laures.cewolf.DatasetProducer;
import de.laures.cewolf.taglib.DataAware;
/**
* Tag <producer> which defines a DatasetProducer.
* @see DataTag
* @author Guido Laures
*/
public class ProducerTag extends AbstractParameterizedObjectTag {
static final long serialVersionUID = 1193241004439087455L;
private boolean useCache = true;
public int doEndTag() throws JspException {
DatasetProducer dataProducer = null;
try {
dataProducer = (DatasetProducer) getObject();
if (dataProducer == null) {
throw new JspException("Could not find datasetproducer under ID '" + getId() + "'");
}
} catch (ClassCastException cce) {
throw new JspException(
"Bean under ID '"
+ getId()
+ "' is of type '"
+ getObject().getClass().getName()
+ "'.\nType expected:"
+ DatasetProducer.class.getName());
}
DataAware dw = (DataAware) findAncestorWithClass(this, DataAware.class);
addParameter(DatasetProducer.PRODUCER_ATTRIBUTE_NAME, getId());
dw.setDataProductionConfig(dataProducer, getParameters(), useCache);
return doAfterEndTag(EVAL_BODY_INCLUDE);
}
/**
* Sets the useCache.
* @param useCache The useCache to set
*/
public void setUsecache(boolean useCache) {
this.useCache = useCache;
}
}