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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 jakarta.faces.model;

import java.util.Collection;
import org.apache.myfaces.core.api.shared.lang.Assert;

/**
 * see Javadoc of Faces Specification
 */
public class SelectItemGroup extends SelectItem
{
  private static final long serialVersionUID = 849845793056900213L;

  private static final SelectItem[] EMPTY_SELECT_ITEMS = new SelectItem[0];

    // FIELDS
    private SelectItem[] _selectItems;

    // CONSTRUCTORS
    public SelectItemGroup()
    {
        super();
        _selectItems = EMPTY_SELECT_ITEMS;
    }

    public SelectItemGroup(String label)
    {
        super("", label, null, false);
        _selectItems = EMPTY_SELECT_ITEMS;
    }

    public SelectItemGroup(String label, String description, boolean disabled, SelectItem... selectItems)
    {
        super("", label, description, disabled);
        Assert.notNull(selectItems, "selectItems");
        _selectItems = selectItems;
    }
    
    public SelectItemGroup(String label, String description, boolean disabled,
            Collection selectItems)
    {
        super("", label, description, disabled);
        Assert.notNull(selectItems, "selectItems");
        _selectItems = selectItems.toArray(new SelectItem[selectItems.size()]);
    }


    // METHODS
    public SelectItem[] getSelectItems()
    {
        return _selectItems;
    }

    public void setSelectItems(SelectItem... selectItems)
    {
        Assert.notNull(selectItems, "selectItems");
        _selectItems = selectItems;
    }
    
    /**
     *
     * @param selectItems
     * @since 4.0
     */
    public void setSelectItems(Collection selectItems)
    {
        Assert.notNull(selectItems, "selectItems");
        setSelectItems(selectItems.toArray(new SelectItem[selectItems.size()]));
    }
}