1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/java/cewolf-1.0/src/main/java/de/laures/cewolf/taglib/tags/ProducerTag.java	Sat Feb 28 21:31:02 2009 +0100
     1.3 @@ -0,0 +1,71 @@
     1.4 +/* ================================================================
     1.5 + * Cewolf : Chart enabling Web Objects Framework
     1.6 + * ================================================================
     1.7 + *
     1.8 + * Project Info:  http://cewolf.sourceforge.net
     1.9 + * Project Lead:  Guido Laures (guido@laures.de);
    1.10 + *
    1.11 + * (C) Copyright 2002, by Guido Laures
    1.12 + *
    1.13 + * This library is free software; you can redistribute it and/or modify it under the terms
    1.14 + * of the GNU Lesser General Public License as published by the Free Software Foundation;
    1.15 + * either version 2.1 of the License, or (at your option) any later version.
    1.16 + *
    1.17 + * This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
    1.18 + * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
    1.19 + * See the GNU Lesser General Public License for more details.
    1.20 + *
    1.21 + * You should have received a copy of the GNU Lesser General Public License along with this
    1.22 + * library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
    1.23 + * Boston, MA 02111-1307, USA.
    1.24 + */
    1.25 +
    1.26 +package de.laures.cewolf.taglib.tags;
    1.27 +
    1.28 +import javax.servlet.jsp.JspException;
    1.29 +
    1.30 +import de.laures.cewolf.DatasetProducer;
    1.31 +import de.laures.cewolf.taglib.DataAware;
    1.32 +
    1.33 +/** 
    1.34 + * Tag <producer> which defines a DatasetProducer.
    1.35 + * @see DataTag
    1.36 + * @author  Guido Laures 
    1.37 + */
    1.38 +public class ProducerTag extends AbstractParameterizedObjectTag {
    1.39 +
    1.40 +    private boolean useCache = true;
    1.41 +
    1.42 +    public int doEndTag() throws JspException {
    1.43 +        DatasetProducer dataProducer = null;
    1.44 +        try {
    1.45 +            dataProducer = (DatasetProducer) getObject();
    1.46 +            if (dataProducer == null) {
    1.47 +                throw new JspException("Could not find datasetproducer under ID '" + getId() + "'");
    1.48 +            }
    1.49 +        } catch (ClassCastException cce) {
    1.50 +            throw new JspException(
    1.51 +                "Bean under ID '"
    1.52 +                    + getId()
    1.53 +                    + "' is of type '"
    1.54 +                    + getObject().getClass().getName()
    1.55 +                    + "'.\nType expected:"
    1.56 +                    + DatasetProducer.class.getName());
    1.57 +        }
    1.58 +        DataAware dw = (DataAware) findAncestorWithClass(this, DataAware.class);
    1.59 +        log.debug("setting data config on " + dw);
    1.60 +        log.debug("useCache = " + useCache);
    1.61 +        addParameter(DatasetProducer.PRODUCER_ATTRIBUTE_NAME, getId());
    1.62 +        dw.setDataProductionConfig(dataProducer, getParameters(), useCache);
    1.63 +        return doAfterEndTag(EVAL_BODY_INCLUDE);
    1.64 +    }
    1.65 +
    1.66 +    /**
    1.67 +     * Sets the useCache.
    1.68 +     * @param useCache The useCache to set
    1.69 +     */
    1.70 +    public void setUsecache(boolean useCache) {
    1.71 +        this.useCache = useCache;
    1.72 +    }
    1.73 +
    1.74 +}