franta-hg@1: /* ================================================================
franta-hg@1:  * Cewolf : Chart enabling Web Objects Framework
franta-hg@1:  * ================================================================
franta-hg@1:  *
franta-hg@1:  * Project Info:  http://cewolf.sourceforge.net
franta-hg@1:  * Project Lead:  Guido Laures (guido@laures.de);
franta-hg@1:  *
franta-hg@1:  * (C) Copyright 2002, by Guido Laures
franta-hg@1:  *
franta-hg@1:  * This library is free software; you can redistribute it and/or modify it under the terms
franta-hg@1:  * of the GNU Lesser General Public License as published by the Free Software Foundation;
franta-hg@1:  * either version 2.1 of the License, or (at your option) any later version.
franta-hg@1:  *
franta-hg@1:  * This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
franta-hg@1:  * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
franta-hg@1:  * See the GNU Lesser General Public License for more details.
franta-hg@1:  *
franta-hg@1:  * You should have received a copy of the GNU Lesser General Public License along with this
franta-hg@1:  * library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
franta-hg@1:  * Boston, MA 02111-1307, USA.
franta-hg@1:  */
franta-hg@1: 
franta-hg@1: package de.laures.cewolf.taglib.tags;
franta-hg@1: 
franta-hg@1: import javax.servlet.jsp.JspException;
franta-hg@1: 
franta-hg@1: import de.laures.cewolf.DatasetProducer;
franta-hg@1: import de.laures.cewolf.taglib.DataAware;
franta-hg@1: 
franta-hg@1: /** 
franta-hg@1:  * Tag <producer> which defines a DatasetProducer.
franta-hg@1:  * @see DataTag
franta-hg@1:  * @author  Guido Laures 
franta-hg@1:  */
franta-hg@1: public class ProducerTag extends AbstractParameterizedObjectTag {
franta-hg@1: 
franta-hg@1:     private boolean useCache = true;
franta-hg@1: 
franta-hg@1:     public int doEndTag() throws JspException {
franta-hg@1:         DatasetProducer dataProducer = null;
franta-hg@1:         try {
franta-hg@1:             dataProducer = (DatasetProducer) getObject();
franta-hg@1:             if (dataProducer == null) {
franta-hg@1:                 throw new JspException("Could not find datasetproducer under ID '" + getId() + "'");
franta-hg@1:             }
franta-hg@1:         } catch (ClassCastException cce) {
franta-hg@1:             throw new JspException(
franta-hg@1:                 "Bean under ID '"
franta-hg@1:                     + getId()
franta-hg@1:                     + "' is of type '"
franta-hg@1:                     + getObject().getClass().getName()
franta-hg@1:                     + "'.\nType expected:"
franta-hg@1:                     + DatasetProducer.class.getName());
franta-hg@1:         }
franta-hg@1:         DataAware dw = (DataAware) findAncestorWithClass(this, DataAware.class);
franta-hg@1:         log.debug("setting data config on " + dw);
franta-hg@1:         log.debug("useCache = " + useCache);
franta-hg@1:         addParameter(DatasetProducer.PRODUCER_ATTRIBUTE_NAME, getId());
franta-hg@1:         dw.setDataProductionConfig(dataProducer, getParameters(), useCache);
franta-hg@1:         return doAfterEndTag(EVAL_BODY_INCLUDE);
franta-hg@1:     }
franta-hg@1: 
franta-hg@1:     /**
franta-hg@1:      * Sets the useCache.
franta-hg@1:      * @param useCache The useCache to set
franta-hg@1:      */
franta-hg@1:     public void setUsecache(boolean useCache) {
franta-hg@1:         this.useCache = useCache;
franta-hg@1:     }
franta-hg@1: 
franta-hg@1: }