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A fork of iCal4j with customizations for Bedework.
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/**
 * Copyright (c) 2010, Ben Fortuna
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 *  o Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 *
 *  o Redistributions in binary form must reproduce the above copyright
 * notice, this list of conditions and the following disclaimer in the
 * documentation and/or other materials provided with the distribution.
 *
 *  o Neither the name of Ben Fortuna nor the names of any other contributors
 * may be used to endorse or promote products derived from this software
 * without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
package net.fortuna.ical4j.model.parameter;

import java.net.URISyntaxException;

import net.fortuna.ical4j.model.AddressList;
import net.fortuna.ical4j.model.Parameter;
import net.fortuna.ical4j.model.ParameterFactoryImpl;
import net.fortuna.ical4j.util.Strings;

/**
 * $Id: DelegatedFrom.java,v 1.15 2010/03/06 12:57:25 fortuna Exp $ [18-Apr-2004]
 *
 * Defines a Delegators parameter.
 * @author benfortuna
 */
public class DelegatedFrom extends Parameter {

    private static final long serialVersionUID = -795956139235258568L;

    private AddressList delegators;

    /**
     * @param aValue a string representation of Delegators
     * @throws URISyntaxException when the specified string is not a valid list of cal-addresses
     */
    public DelegatedFrom(final String aValue) throws URISyntaxException {
        this(new AddressList(Strings.unquote(aValue)));
    }

    /**
     * @param aList a list of addresses
     */
    public DelegatedFrom(final AddressList aList) {
        super(DELEGATED_FROM, ParameterFactoryImpl.getInstance());
        delegators = aList;
    }

    /**
     * @return Returns the delegators addresses.
     */
    public final AddressList getDelegators() {
        return delegators;
    }

    /**
     * {@inheritDoc}
     */
    public final String getValue() {
        return getDelegators().toString();
    }
    
    /**
     * {@inheritDoc}
     */
    protected boolean isQuotable() {
        // override default behaviour as quoting is handled by the implementation..
        return false;
    }
}