diff -r 1612dbcec451 -r 639991d0808a java/cewolf-1.0/src/main/java/de/laures/cewolf/taglib/ChartImageDefinition.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/java/cewolf-1.0/src/main/java/de/laures/cewolf/taglib/ChartImageDefinition.java	Sat Feb 28 21:31:02 2009 +0100
@@ -0,0 +1,169 @@
+/* ================================================================
+ * 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;
+
+import java.io.Serializable;
+import java.util.Calendar;
+import java.util.Date;
+import java.util.GregorianCalendar;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+
+import de.laures.cewolf.CewolfException;
+import de.laures.cewolf.ChartHolder;
+import de.laures.cewolf.ChartImage;
+import de.laures.cewolf.ChartValidationException;
+import de.laures.cewolf.DatasetProduceException;
+import de.laures.cewolf.PostProcessingException;
+import de.laures.cewolf.event.ChartImageRenderListener;
+import de.laures.cewolf.util.RenderedImage;
+import de.laures.cewolf.util.Renderer;
+
+/**
+ * Serializable implementaton of a ChartImage.
+ * @author glaures
+ * @see de.laures.cewolf.ChartImage
+ */
+public class ChartImageDefinition implements ChartImage, ChartHolder, Serializable {
+	
+    private static final Log log = LogFactory.getLog(ChartImageDefinition.class);
+
+	private final ChartHolder chartHolder;
+	private final int height;
+	private final int width;
+	private final int type;
+	private final String mimeType;
+	transient private final Date timeoutTime;
+	
+	private RenderedImage renderedImage;
+
+	/**
+	 * Constructor for ChartImage
+	 */
+	public ChartImageDefinition(ChartHolder ch, int width, int height, int type, String mimeType, int timeout) {
+		if(width <= 0 || height <= 0){
+			throw new IllegalArgumentException("ChartImage with height or width <= 0 is illegal");
+		}
+		this.chartHolder = ch;
+		this.width = width;
+		this.height = height;
+		this.type = type;
+		this.mimeType = mimeType;
+    Calendar cal = new GregorianCalendar();
+    cal.add(Calendar.SECOND,timeout);
+    this.timeoutTime = cal.getTime();
+	}
+		
+	/**
+	 * Returns the height.
+	 * @return int
+	 */
+	public int getHeight() {
+		return height;
+	}
+
+	/**
+	 * Returns the width.
+	 * @return int
+	 */
+	public int getWidth() {
+		return width;
+	}
+
+	public int getType() {
+		return type;
+	}
+
+	public Object getChart() throws DatasetProduceException, ChartValidationException, PostProcessingException {
+		return chartHolder.getChart();
+	}
+
+	public Object getDataset() throws DatasetProduceException {
+		return chartHolder.getDataset();
+	}
+
+	/**
+	 * Returns the mimeType.
+	 * @return String
+	 */
+	public String getMimeType() {
+		return mimeType;
+	}
+	
+	/**
+	 * @see java.lang.Object#finalize()
+	 */
+	protected void finalize() throws Throwable {
+		super.finalize();
+		log.debug(this + " finalized.");
+	}
+	
+	/**
+	 * @see de.laures.cewolf.ChartImage#getRenderingInfo()
+	 */
+	public Object getRenderingInfo() throws CewolfException {
+		ensureRendered();
+		return renderedImage.renderingInfo;
+	}
+	
+	public byte[] getBytes() throws CewolfException{
+		ensureRendered();
+		return renderedImage.data;
+	}
+	
+	private void ensureRendered() throws CewolfException{
+		if(renderedImage == null){
+			renderedImage = Renderer.render(this, chartHolder.getChart());
+			onImageRendered(renderedImage);
+		}
+	}
+
+	/**
+	 * @see de.laures.cewolf.ChartImage#getSize()
+	 */
+	public int getSize() throws CewolfException {
+		ensureRendered();
+		return renderedImage.data.length;
+	}
+
+	/* (non-Javadoc)
+	 * @see de.laures.cewolf.ChartImage#getTimeoutTime()
+	 */
+	public Date getTimeoutTime() {
+		return timeoutTime;
+	}
+
+	/**
+	 * Implemented onImageRendered method.
+	 * @see de.laures.cewolf.ChartHolder#onImageRendered(de.laures.cewolf.util.RenderedImage).
+	 * @param renderedImage The image
+	 */
+	private void onImageRendered(RenderedImage renderedImage) {
+		if (chartHolder instanceof ChartImageRenderListener) {
+			// delegate to chartHolder if it's interested...
+			((ChartImageRenderListener) chartHolder).onImageRendered(renderedImage);
+		}
+	}
+
+}