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Apache jSieve is a server side mail filtering system implementing RFC3028. Apache jSieve is developed by the JAMES project.

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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.                                           *
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package org.apache.jsieve;

import java.util.Iterator;
import java.util.List;

import org.apache.jsieve.exception.SieveException;
import org.apache.jsieve.mail.MailAdapter;

/**
 * 
 * A parsed representation of the RFC3028 BNF...
 * 
 * 
 * commands = *command
 * 
 */
public class Commands implements Executable {
    /**
     * A List of children of the receiver
     */
    private List fieldChildren;

    /**
     * Constructor for Commands.
     */
    private Commands() {
        super();
    }

    /**
     * Constructor for Commands.
     * 
     * @param commands
     */
    public Commands(List commands) {
        this();
        setChildren(commands);
    }

    /**
     * Returns the commands.
     * 
     * @return List
     */
    public List getChildren() {
        return fieldChildren;
    }

    /**
     * Sets the commands.
     * 
     * @param commands
     *            The commands to set
     */
    protected void setChildren(List commands) {
        fieldChildren = commands;
    }

    /**
     * @see org.apache.jsieve.Executable#execute(MailAdapter, SieveContext)
     */
    public Object execute(MailAdapter mail, SieveContext context)
            throws SieveException {
        Iterator commandsIter = getChildren().iterator();
        while (commandsIter.hasNext())
            ((Executable) commandsIter.next()).execute(mail, context);
        return null;
    }

    public String toString() {
        return "COMMANDS: " + fieldChildren;
    }

}