/*
* NOTE: This copyright does *not* cover user programs that use HQ
* program services by normal system calls through the application
* program interfaces provided as part of the Hyperic Plug-in Development
* Kit or the Hyperic Client Development Kit - this is merely considered
* normal use of the program, and does *not* fall under the heading of
* "derived work".
*
* Copyright (C) [2004, 2005, 2006], Hyperic, Inc.
* This file is part of HQ.
*
* HQ is free software; you can redistribute it and/or modify
* it under the terms version 2 of the GNU General Public License as
* published by the Free Software Foundation. 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307
* USA.
*/
package org.hyperic.hq.ui.taglib;
import javax.servlet.jsp.JspException;
import org.hyperic.hq.ui.Constants;
/**
* Set a scoped variable containing the number of items to display on
* a single page of a paged list.
*/
public class PageSizeTag extends VarSetterBaseTag {
//----------------------------------------------------instance variables
public PageSizeTag() {
super();
}
//----------------------------------------------------public methods
/**
* Process the tag, setting the value of the scoped variable to
* either the value of the <code>Constants.PAGESIZE_PARAM</code>
* request parameter (or 0 if the parameter value is negative) or
* the </code>Constants.PAGESIZE_DEFAULT</code> default value.
*
* @exception JspException if there is an error processing the tag
*/
public final int doStartTag() throws JspException {
String ps = pageContext.getRequest().getParameter(Constants.PAGESIZE_PARAM);
if (ps != null) {
setScopedVariable(new Integer(ps));
}
else {
setScopedVariable(Constants.PAGESIZE_DEFAULT);
}
return SKIP_BODY;
}
}