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JSF components and utilities that can be used with any JSF implementation. This library is based on the JSF1.1 version of Tomahawk, but with minor source code and build changes to take advantage of JSF1.2 features. A JSF1.2 implementation is required to use this version of the Tomahawk library.

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/*
 * 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.crosstable;

import org.apache.myfaces.custom.column.HtmlColumn;


/**
 * The tag allows dynamic columns in a datatable. 
 * 
 * The UIColumns component is used below a t:datatable to create a 
 * dynamic count of columns. It is used like a UIData component 
 * which iterates through a datamodel to create the columns. 
 * 
 * Unless otherwise specified, all attributes accept static values or EL expressions.
 * 
 * @JSFComponent
 *   name = "t:columns" 
 *   class = "org.apache.myfaces.custom.crosstable.HtmlColumns"
 *   tagClass = "org.apache.myfaces.custom.crosstable.HtmlColumnsTag"
 *   implements = "org.apache.myfaces.custom.column.HtmlColumn"
 *   defaultRendererType = ""
 * @since 1.1.7
 * @author Mathias Broekelmann (latest modification by $Author: lu4242 $)
 * @version $Revision: 691856 $ $Date: 2008-09-03 21:40:30 -0500 (Wed, 03 Sep 2008) $
 */
public abstract class AbstractHtmlColumns extends UIColumns implements HtmlColumn {
    
    public static final String COMPONENT_TYPE = "org.apache.myfaces.HtmlColumns";

    /**
     * This attribute tells the datatable to group by data in this column
     * 
     * @JSFProperty
     *   defaultValue = "false"
     */
    public abstract boolean isGroupBy();

    /**
     *  Optional - Allows you configure where to get the value to 
     *  check for the group change condition. Default: all children 
     *  of the column cell will be checked
     * 
     * @JSFProperty
     */
    public abstract Object getGroupByValue();

    /**
     * This attribute tells the datatable to make this column the 
     * default sorted, when sortable=true
     * 
     * @JSFProperty
     *   defaultValue = "false"
     */
    public abstract boolean isDefaultSorted();

    /**
     * This attribute makes this column automaticaly sortable 
     * by a row object's property
     * 
     * @JSFProperty
     *   defaultValue = "false"
     */
    public abstract boolean isSortable();

    /**
     *  This attribute tells row object's property by which 
     *  sorting will be performed on this column
     * 
     * @JSFProperty
     */    
    public abstract String getSortPropertyName();

    // the following are not implemented, but are in the HtmlColumn interface
    public String getColspan() {return null;}
    public void setColspan(String colspan) {}
    public String getHeadercolspan() {return null;}
    public void setHeadercolspan(String headercolspan) {}
    public String getFootercolspan() {return null;}
    public void setFootercolspan(String footercolspan) {}

    public String getColumnId() {
        return null;
    }

    public void setColumnId(String columnId) {
    }

}