/*
* 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.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution,
* 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.
*
* 4. The names "Xerces" and "Apache Software Foundation" must
* not be used to endorse or promote products derived from this
* software without prior written permission. For written
* permission, please contact apache@apache.org.
*
* 5. Products derived from this software may not be called "Apache",
* nor may "Apache" appear in their name, without prior written
* permission of the Apache Software Foundation.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* 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
* <http://www.apache.org/>.
*/
package com.sun.org.apache.xerces.internal.xni;
import com.sun.org.apache.xerces.internal.xni.parser.XMLDTDContentModelSource;
/**
* The DTD content model handler interface defines callback methods
* to report information items in DTD content models of an element
* declaration. Parser components interested in DTD content model
* information implement this interface and are registered as the DTD
* content model handler on the DTD content model source.
*
* @see XMLDTDHandler
*
* @author Andy Clark, IBM
*
* @version $Id: XMLDTDContentModelHandler.java,v 1.5 2002/12/07 00:07:51 neilg Exp $
*/
public interface XMLDTDContentModelHandler {
//
// Constants
//
// separators
/**
* A choice separator for children and mixed content models. This
* separator is used to specify that the allowed child is one of a
* collection.
* <p>
* For example:
* <pre>
* <!ELEMENT elem (foo|bar)>
* <!ELEMENT elem (foo|bar+)>
* <!ELEMENT elem (foo|bar|baz)>
* <!ELEMENT elem (#PCDATA|foo|bar)*>
* </pre>
*
* @see #SEPARATOR_SEQUENCE
*/
public static final short SEPARATOR_CHOICE = 0;
/**
* A sequence separator for children content models. This separator
* is used to specify that the allowed children must follow in the
* specified sequence.
* <p>
* <pre>
* <!ELEMENT elem (foo,bar)>
* <!ELEMENT elem (foo,bar*)>
* <!ELEMENT elem (foo,bar,baz)>
* </pre>
*
* @see #SEPARATOR_CHOICE
*/
public static final short SEPARATOR_SEQUENCE = 1;
// occurrence counts
/**
* This occurrence count limits the element, choice, or sequence in a
* children content model to zero or one. In other words, the child
* is optional.
* <p>
* For example:
* <pre>
* <!ELEMENT elem (foo?)>
* </pre>
*
* @see #OCCURS_ZERO_OR_MORE
* @see #OCCURS_ONE_OR_MORE
*/
public static final short OCCURS_ZERO_OR_ONE = 2;
/**
* This occurrence count limits the element, choice, or sequence in a
* children content model to zero or more. In other words, the child
* may appear an arbitrary number of times, or not at all. This
* occurrence count is also used for mixed content models.
* <p>
* For example:
* <pre>
* <!ELEMENT elem (foo*)>
* <!ELEMENT elem (#PCDATA|foo|bar)*>
* </pre>
*
* @see #OCCURS_ZERO_OR_ONE
* @see #OCCURS_ONE_OR_MORE
*/
public static final short OCCURS_ZERO_OR_MORE = 3;
/**
* This occurrence count limits the element, choice, or sequence in a
* children content model to one or more. In other words, the child
* may appear an arbitrary number of times, but must appear at least
* once.
* <p>
* For example:
* <pre>
* <!ELEMENT elem (foo+)>
* </pre>
*
* @see #OCCURS_ZERO_OR_ONE
* @see #OCCURS_ZERO_OR_MORE
*/
public static final short OCCURS_ONE_OR_MORE = 4;
//
// XMLDTDContentModelHandler methods
//
/**
* The start of a content model. Depending on the type of the content
* model, specific methods may be called between the call to the
* startContentModel method and the call to the endContentModel method.
*
* @param elementName The name of the element.
* @param augmentations Additional information that may include infoset
* augmentations.
*
* @throws XNIException Thrown by handler to signal an error.
*/
public void startContentModel(String elementName, Augmentations augmentations)
throws XNIException;
/**
* A content model of ANY.
*
* @param augmentations Additional information that may include infoset
* augmentations.
*
* @throws XNIException Thrown by handler to signal an error.
*
* @see #empty
* @see #startGroup
*/
public void any(Augmentations augmentations) throws XNIException;
/**
* A content model of EMPTY.
*
* @throws XNIException Thrown by handler to signal an error.
*
* @param augmentations Additional information that may include infoset
* augmentations.
*
* @see #any
* @see #startGroup
*/
public void empty(Augmentations augmentations) throws XNIException;
/**
* A start of either a mixed or children content model. A mixed
* content model will immediately be followed by a call to the
* <code>pcdata()</code> method. A children content model will
* contain additional groups and/or elements.
*
* @param augmentations Additional information that may include infoset
* augmentations.
*
* @throws XNIException Thrown by handler to signal an error.
*
* @see #any
* @see #empty
*/
public void startGroup(Augmentations augmentations) throws XNIException;
/**
* The appearance of "#PCDATA" within a group signifying a
* mixed content model. This method will be the first called
* following the content model's <code>startGroup()</code>.
*
* @param augmentations Additional information that may include infoset
* augmentations.
*
* @throws XNIException Thrown by handler to signal an error.
*
* @see #startGroup
*/
public void pcdata(Augmentations augmentations) throws XNIException;
/**
* A referenced element in a mixed or children content model.
*
* @param elementName The name of the referenced element.
* @param augmentations Additional information that may include infoset
* augmentations.
*
* @throws XNIException Thrown by handler to signal an error.
*/
public void element(String elementName, Augmentations augmentations)
throws XNIException;
/**
* The separator between choices or sequences of a mixed or children
* content model.
*
* @param separator The type of children separator.
* @param augmentations Additional information that may include infoset
* augmentations.
*
* @throws XNIException Thrown by handler to signal an error.
*
* @see #SEPARATOR_CHOICE
* @see #SEPARATOR_SEQUENCE
*/
public void separator(short separator, Augmentations augmentations)
throws XNIException;
/**
* The occurrence count for a child in a children content model or
* for the mixed content model group.
*
* @param occurrence The occurrence count for the last element
* or group.
* @param augmentations Additional information that may include infoset
* augmentations.
*
* @throws XNIException Thrown by handler to signal an error.
*
* @see #OCCURS_ZERO_OR_ONE
* @see #OCCURS_ZERO_OR_MORE
* @see #OCCURS_ONE_OR_MORE
*/
public void occurrence(short occurrence, Augmentations augmentations)
throws XNIException;
/**
* The end of a group for mixed or children content models.
*
* @param augmentations Additional information that may include infoset
* augmentations.
*
* @throws XNIException Thrown by handler to signal an error.
*/
public void endGroup(Augmentations augmentations) throws XNIException;
/**
* The end of a content model.
*
* @param augmentations Additional information that may include infoset
* augmentations.
*
* @throws XNIException Thrown by handler to signal an error.
*/
public void endContentModel(Augmentations augmentations) throws XNIException;
// set content model source
public void setDTDContentModelSource(XMLDTDContentModelSource source);
// get content model source
public XMLDTDContentModelSource getDTDContentModelSource();
} // interface XMLDTDContentModelHandler
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