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 * Licensed to the Apache Software Foundation (ASF) under one or more
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package com.sun.org.apache.xerces.internal.xni.parser;

import java.io.IOException;

import com.sun.org.apache.xerces.internal.xni.XNIException;
import com.sun.org.apache.xerces.internal.xni.XMLResourceIdentifier;

This interface is used to resolve external parsed entities. The
application can register an object that implements this interface
with the parser configuration in order to intercept entities and
resolve them explicitly. If the registered entity resolver cannot
resolve the entity, it should return null so that the
parser will try to resolve the entity using a default mechanism.
Author:
Andy Clark, IBM
See Also:
XMLParserConfiguration/**
 * This interface is used to resolve external parsed entities. The
 * application can register an object that implements this interface
 * with the parser configuration in order to intercept entities and
 * resolve them explicitly. If the registered entity resolver cannot
 * resolve the entity, it should return <code>null</code> so that the
 * parser will try to resolve the entity using a default mechanism.
 *
 * @see XMLParserConfiguration
 *
 * @author Andy Clark, IBM
 *
 */
public interface XMLEntityResolver {

    //
    // XMLEntityResolver methods
    //

    
Resolves an external parsed entity. If the entity cannot be
resolved, this method should return null.
Params:
resourceIdentifier – location of the XML resource to resolve
Throws:
XNIException – Thrown on general error.
IOException –  Thrown if resolved entity stream cannot be
                     opened or some other i/o error occurs.
See Also:
XMLResourceIdentifier/**
     * Resolves an external parsed entity. If the entity cannot be
     * resolved, this method should return null.
     *
     * @param resourceIdentifier location of the XML resource to resolve
     *
     * @throws XNIException Thrown on general error.
     * @throws IOException  Thrown if resolved entity stream cannot be
     *                      opened or some other i/o error occurs.
     * @see com.sun.org.apache.xerces.internal.xni.XMLResourceIdentifier
     */
    public XMLInputSource resolveEntity(XMLResourceIdentifier resourceIdentifier)
        throws XNIException, IOException;

} // interface XMLEntityResolver