Smack/source/org/jivesoftware/smack/provider/IQProvider.java

/**
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 * Copyright (C) 2002-2003 Jive Software. All rights reserved.
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package org.jivesoftware.smack.provider;

import org.jivesoftware.smack.packet.IQ;
import org.xmlpull.v1.XmlPullParser;

/**
 * An interface for parsing custom IQ packets. Each IQProvider must be registered with
 * the ProviderManager class for it to be used. Every implementation of this
 * interface <b>must</b> have a public, no-argument constructor.
 *
 * @author Matt Tucker
 */
public interface IQProvider {

    /**
     * Parse the IQ sub-document and create an IQ instance. Each IQ must have a
     * single child element. At the beginning of the method call, the xml parser
     * will be positioned at the opening tag of the IQ child element. At the end
     * of the method call, the parser <b>must</b> be positioned on the closing tag
     * of the child element.
     *
     * @param parser an XML parser.
     * @return a new IQ instance.
     * @throws Exception if an error occurs parsing the XML.
     */
    public IQ parseIQ(XmlPullParser parser) throws Exception;
}