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package com.sun.org.apache.xerces.internal.impl;

import java.io.IOException;
import com.sun.org.apache.xerces.internal.xni.Augmentations;
import com.sun.org.apache.xerces.internal.xni.XMLResourceIdentifier;
import com.sun.org.apache.xerces.internal.xni.XNIException;

The entity handler interface defines methods to report information
about the start and end of entities.
Author:
Andy Clark, IBM
See Also:
XMLEntityScanner
@xerces.internal
/**
 * The entity handler interface defines methods to report information
 * about the start and end of entities.
 *
 * @xerces.internal
 *
 * @see com.sun.org.apache.xerces.internal.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.
Params:
name –     The name of the entity.
identifier – The resource identifier.
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).
augs –     Additional information that may include infoset augmentations
Throws:
XNIException – Thrown by handler to signal an error./**
     * 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.
Params:
name – The name of the entity.
augs – Additional information that may include infoset augmentations
Throws:
IOException – This exception might be thrown when there is premature end of entity
XNIException – Thrown by handler to signal an error./**
     * 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