cewolf: java/cewolf-1.0/src/main/java/de/laures/cewolf/ChartPostProcessor.java@249560bcc466

     1 /* ================================================================

     2  * Cewolf : Chart enabling Web Objects Framework

     3  * ================================================================

     4  *

     5  * Project Info:  http://cewolf.sourceforge.net

     6  * Project Lead:  Guido Laures (guido@laures.de);

     7  *

     8  * (C) Copyright 2002, by Guido Laures

     9  *

    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.

    13  *

    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.

    17  *

    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.

    21  */

    23 package de.laures.cewolf;

    25 import java.util.Map;

    27 /**

    28  * Postprocesses a generated chart instance. Objects of this class can be used to

    29  * customize a generated and afterwards rendered chart instance additionally.

    30  * To provide a postprocessor the &lt;chartpostprocessor&gt; tag is used.

    31  * There can be an unlimited number of postprocessors registered.

    32  * @see de.laures.cewolf.taglib.tags.ChartPostProcessorTag

    33  * @author  Guido Laures

    34  */

    35 public interface ChartPostProcessor {

    37     /**

    38      * Processes a generated chart. This method is called by the ChartProducer

    39      * after a chart instance is generated and before it is rendered (if so).

    40      * The ChartProducer is responsible for post processing a chart dependant

    41      * on and only on the provided parameters. This means that the same parameters

    42      * should result in the same post processings.

    43      * @param chart the chart instnce. Concrete class depends on the rendering

    44      * implementation. Currently a org.jfree.chart.JFreeChart is passed.

    45      * @param params paramters passed to the postprocessor. These are defined in the JSP

    46      * @see de.laures.cewolf.taglib.tags.ChartPostProcessorTag

    47      */

    48     void processChart(Object chart, Map params);

    50 }

author	František Kučera <franta-hg@frantovo.cz>
	Sun, 01 Mar 2009 11:06:49 +0100
changeset 4	249560bcc466
parent 1	639991d0808a
permissions	-rw-r--r--