/** * Licensed under the Artistic License; you may not use this file * except in compliance with the License. * You may obtain a copy of the License at * *      http://displaytag.sourceforge.net/license.html * * THIS PACKAGE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. */package org.displaytag.tags;import javax.servlet.jsp.JspException;import javax.servlet.jsp.tagext.BodyTagSupport;import org.displaytag.exception.MissingAttributeException;import org.displaytag.exception.TagStructureException;/** * @author epesh * @author Fabrizio Giustina * @version $Revision: 1081 $ ($Author: fgiust $) */public class SetPropertyTag extends BodyTagSupport{    /**     * D1597A17A6.     */    private static final long serialVersionUID = 899149338534L;    /**     * property name.     */    private String name;    /**     * property value.     */    private String value;    /**     * is this the first iteration?     */    private boolean firstIteration;    /**     * Sets the name of the property.     * @param propertyName String     */    public void setName(String propertyName)    {        this.name = propertyName;    }    /**     * Sets the value of the property.     * @param propertyValue String     */    public void setValue(String propertyValue)    {        this.value = propertyValue;    }    /**     * @see javax.servlet.jsp.tagext.Tag#doStartTag()     */    public int doStartTag() throws JspException    {        TableTag tableTag = (TableTag) findAncestorWithClass(this, TableTag.class);        if (tableTag == null)        {            throw new TagStructureException(getClass(), "setProperty", "table"); //$NON-NLS-1$ //$NON-NLS-2$        }        // read body only once        if (tableTag.isFirstIteration())        {            this.firstIteration = true;            // using int to avoid deprecation error in compilation using j2ee 1.3 (EVAL_BODY_TAG)            return 2;        }        this.firstIteration = false;        return SKIP_BODY;    }    /**     * Passes attribute information up to the parent TableTag.     * <p>     * When we hit the end of the tag, we simply let our parent (which better be a TableTag) know what the user wants to     * change a property value, and we pass the name/value pair that the user gave us, up to the parent     * </p>     * @return <code>TagSupport.EVAL_PAGE</code>     * @throws MissingAttributeException if no value or body content has been set     * @see javax.servlet.jsp.tagext.Tag#doEndTag()     */    public int doEndTag() throws MissingAttributeException    {        if (this.firstIteration)        {            TableTag tableTag = (TableTag) findAncestorWithClass(this, TableTag.class);            // tableTag can't be null, it has been checked in doStartTag            if (this.value == null)            {                if (getBodyContent() == null)                {                    throw new MissingAttributeException(getClass(), //                        new String[]{"value", "body content"}); //$NON-NLS-1$ //$NON-NLS-2$                }                this.value = getBodyContent().getString();            }            tableTag.setProperty(this.name, this.value);            this.name = null;            this.value = null;        }        return EVAL_PAGE;    }}