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/*
 * The Apache Software License, Version 1.1
 *
 *
 * Copyright (c) 2000-2002 The Apache Software Foundation.  All rights
 * reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
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 *    distribution.
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 *    if any, must include the following acknowledgment:
 *       "This product includes software developed by the
 *        Apache Software Foundation (http://www.apache.org/)."
 *    Alternately, this acknowledgment may appear in the software itself,
 *    if and wherever such third-party acknowledgments normally appear.
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 * 4. The names "Xerces" and "Apache Software Foundation" must
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 * 5. Products derived from this software may not be called "Apache",
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 * ====================================================================
 *
 * This software consists of voluntary contributions made by many
 * individuals on behalf of the Apache Software Foundation and was
 * originally based on software copyright (c) 1999, International
 * Business Machines, Inc., http://www.apache.org.  For more
 * information on the Apache Software Foundation, please see
 * .
 */

package jdk8u.jaxp.org.apache.xerces.external.impl;

import java.io.IOException;
import jdk8u.jaxp.org.apache.xerces.external.xni.Augmentations;
import jdk8u.jaxp.org.apache.xerces.external.xni.XMLResourceIdentifier;
import jdk8u.jaxp.org.apache.xerces.external.xni.XNIException;

/**
 * The entity handler interface defines methods to report information
 * about the start and end of entities.
 *
 * @xerces.internal
 *
 * @see jdk8u.jaxp.org.apache.xerces.external.impl.XMLEntityScanner
 *
 * @author Andy Clark, IBM
 *
 */
public interface XMLEntityHandler {

    //
    // XMLEntityHandler methods
    //

    /**
     * This method notifies of the start of an entity. The DTD has the
     * pseudo-name of "[dtd]" parameter entity names start with '%'; and
     * general entities are just specified by their name.
     *
     * @param name     The name of the entity.
     * @param identifier The resource identifier.
     * @param encoding The auto-detected IANA encoding name of the entity
     *                 stream. This value will be null in those situations
     *                 where the entity encoding is not auto-detected (e.g.
     *                 internal entities or a document entity that is
     *                 parsed from a java.io.Reader).
     * @param augs     Additional information that may include infoset augmentations
     *
     * @throws XNIException Thrown by handler to signal an error.
     */
    public void startEntity(String name,
                            XMLResourceIdentifier identifier,
                            String encoding, Augmentations augs) throws XNIException;

    /**
     * This method notifies the end of an entity. The DTD has the pseudo-name
     * of "[dtd]" parameter entity names start with '%'; and general entities
     * are just specified by their name.
     *
     * @param name The name of the entity.
     * @param augs Additional information that may include infoset augmentations
     *
     * @throws IOException This exception might be thrown when there is premature end of entity
     * @throws XNIException Thrown by handler to signal an error.
     */
    public void endEntity(String name, Augmentations augs) throws IOException, XNIException;

} // interface XMLEntityHandler