SetPropertyTag.java

/*
 * RHQ Management Platform
 * Copyright (C) 2005-2008 Red Hat, Inc.
 * All rights reserved.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation version 2 of the License.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */
package org.rhq.enterprise.gui.legacy.taglib.display;

import javax.servlet.jsp.JspException;
import javax.servlet.jsp.tagext.BodyTagSupport;

/**
 * One line description of what this class does. More detailed class description, including examples of usage if
 * applicable.
 */

public class SetPropertyTag extends BodyTagSupport implements Cloneable {
    private String name;
    private String value;

    public void setName(String v) {
        this.name = v;
    }

    public void setValue(String v) {
        this.value = v;
    }

    public String getName() {
        return this.name;
    }

    public String getValue() {
        return this.value;
    }

    // --------------------------------------------------------- Tag API methods

    /**
     * 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
     *
     * @throws javax.servlet.jsp.JspException if this tag is being used outside of a <display:list...> tag.
     */

    public int doEndTag() throws JspException {
        Object parent = this.getParent();

        if (parent == null) {
            throw new JspException("Can not use column tag outside of a " + "TableTag. Invalid parent = null");
        }

        if (!(parent instanceof TableTag)) {
            throw new JspException("Can not use column tag outside of a " + "TableTag. Invalid parent = "
                + parent.getClass().getName());
        }

        ((TableTag) parent).setProperty(this.name, this.value);

        return super.doEndTag();
    }
}