com.sun.webui.jsf.model.OptionsList Maven / Gradle / Ivy

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/*
 * The contents of this file are subject to the terms
 * of the Common Development and Distribution License
 * (the License).  You may not use this file except in
 * compliance with the License.
 * 
 * You can obtain a copy of the license at
 * https://woodstock.dev.java.net/public/CDDLv1.0.html.
 * See the License for the specific language governing
 * permissions and limitations under the License.
 * 
 * When distributing Covered Code, include this CDDL
 * Header Notice in each file and include the License file
 * at https://woodstock.dev.java.net/public/CDDLv1.0.html.
 * If applicable, add the following below the CDDL Header,
 * with the fields enclosed by brackets [] replaced by
 * you own identifying information:
 * "Portions Copyrighted [year] [name of copyright owner]"
 * 
 * Copyright 2007 Sun Microsystems, Inc. All rights reserved.
 */
package com.sun.webui.jsf.model;

import java.util.ArrayList;
import java.io.Serializable;

/** 
 * Represents a list of selectable options, which can be used to
 * initialize the items property of all selector-based components
 * (Listbox, Dropdown, JumpDropdown, 
 * CheckboxGroup, RadioButtonGroup), and 
 * AddRemove.
 *
 * @author gjmurphy, John Yeary
 */
public class OptionsList implements Serializable {

    private static final long serialVersionUID = 6695656179045426419L;
    private ArrayList options;
    private ArrayList selectedValues;
    private boolean isMultiple;

    public boolean isMultiple() {
        return isMultiple;
    }

    public void setMultiple(boolean isMultiple) {
        this.isMultiple = isMultiple;
    }

    public OptionsList() {
        options = new ArrayList();
        selectedValues = new ArrayList();
        isMultiple = false;
    }

    public void setOptions(Option[] options) {
        this.options.clear();
        if (options == null) {
            return;
        }
        for (int i = 0; i < options.length; i++) {
            this.options.add(options[i]);
        }
    }

    public Option[] getOptions() {
        Option[] options = new Option[this.options.size()];
        this.options.toArray(options);
        return options;
    }

    /**
     * If this options list is in "multiple" mode, value specified may be
     * an array of objects or a singleton. Otherwise, the value is treated as
     * a singleton.
     */
    public void setSelectedValue(Object value) {
        selectedValues.clear();
        if (value == null) {
            return;
        }
        if (value instanceof Object[]) {
            Object[] values = (Object[]) value;
            for (int i = 0; i < values.length; i++) {
                selectedValues.add(values[i]);
            }
        } else {
            selectedValues.add(value);
        }
    }

    /**
     * If this options list is in "multiple" mode, returns an array of objects;
     * otherwise, returns a singleton.
     */
    public Object getSelectedValue() {
        if (isMultiple) {
            if (selectedValues.size() == 0) {
                return new Object[0];
            }
            return selectedValues.toArray();
        } else {
            if (selectedValues.size() == 0) {
                return null;
            }
            return selectedValues.get(0);
        }
    }
}