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package com.sun.xml.ws.policy.jaxws.xmlstreamwriter;

import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamWriter;

/**
 * The interface provides API contract for {@link InvocationProcessor} factory 
 * implementations. Implementations of this interface may be passed into {@link EnhancedXmlStreamWriterProxy}
 *
 * @author Marek Potociar (marek.potociar at sun.com)
 */
public interface InvocationProcessorFactory {
    
    /**
     * Factory method creates {@link InvocationProcessor} instance that implements
     * additional {@link XMLStreamWriter} feature or enhancement.
     *
     * @param writer underlying {@link XMLStreamWriter} instance that should be enhanced 
     * with the new feature(s).
     *
     * @return newly created {@link InvocationProcessor} instance.
     * 
     * @throws XMLStreamException in case of any problems with creation of
     *         new {@link InvocationProcessor} instance.
     */
    InvocationProcessor createInvocationProcessor(XMLStreamWriter writer) throws XMLStreamException;
}