org.apache.myfaces.custom.datascroller.ScrollerActionEvent Maven / Gradle / Ivy

Show more of this group Show more artifacts with this name
Show all versions of tomahawk Show documentation

JSF components and utilities that can be used with any JSF implementation. This library is compatible with both JSF1.1 and JSF1.2; however for JSF1.2 users there is an alternative build of Tomahawk available that takes advantage of JSF1.2 features to offer some additional benefits.

There is a newer version: 1.1.14

Show newest version

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.myfaces.custom.datascroller;

import javax.faces.component.UIComponent;
import javax.faces.event.ActionEvent;

/**
 * An event representing a click on some scroller control to
 * change the currently displayed table rows.
 * 
 * @author Mathias Broekelmann (latest modification by $Author$)
 * @version $Revision$ $Date$
 */
public class ScrollerActionEvent extends ActionEvent
{
    private static final long serialVersionUID = -5692343289423906802L;

    private final String mScrollerfacet;

    private final int mPageIndex;

    /**
     * An event representing a user's choice of navigation option
     * except jumping to a specific page.
     * 
     * Param scrollerFacet contains the name of the operation performed,
     * which matches one of the public HtmlDataScroller.FACET_* constants.
     */
    public ScrollerActionEvent(UIComponent component, String scrollerfacet)
    {
        super(component);
        mScrollerfacet = scrollerfacet;
        mPageIndex = -1;
    }

    /**
     * An event representing a user's choice to jump straight to page
     * #pageIndex of the available pages of data.
     * 
     * @param component is the DataScroller component 
     * @param pageIndex is in the range 0..(nPages-1), where nPages
     * is (rowsOfDataAvailable/rowsPerPage).
     */
    public ScrollerActionEvent(UIComponent component, int pageIndex)
    {
        super(component);
        if (pageIndex < 0)
        {
            throw new IllegalArgumentException("wrong pageindex");
        }
        mPageIndex = pageIndex;
        mScrollerfacet = null;
    }

    /**
     * Returns a string which matches one of the HtmlDataScroller.FACET_*
     * public constants, or null if the user chose a page# navigation option.
     */
    public String getScrollerfacet()
    {
        return mScrollerfacet;
    }

    /**
     * Return the page of data the user wants to see, or -1 if the
     * user didn't choose a page# navigation option. 
     */
    public int getPageIndex()
    {
        return mPageIndex;
    }
}