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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.xerces.xni;
import org.apache.xerces.xni.parser.XMLDTDSource;
/**
* The DTD handler interface defines callback methods to report
* information items in the DTD of an XML document. Parser components
* interested in DTD information implement this interface and are
* registered as the DTD handler on the DTD source.
*
* @see XMLDTDContentModelHandler
*
* @author Andy Clark, IBM
*
* @version $Id: XMLDTDHandler.java 447247 2006-09-18 05:23:52Z mrglavas $
*/
public interface XMLDTDHandler {
//
// Constants
//
/**
* Conditional section: INCLUDE.
*
* @see #CONDITIONAL_IGNORE
*/
public static final short CONDITIONAL_INCLUDE = 0;
/**
* Conditional section: IGNORE.
*
* @see #CONDITIONAL_INCLUDE
*/
public static final short CONDITIONAL_IGNORE = 1;
//
// XMLDTDHandler methods
//
/**
* The start of the DTD.
*
* @param locator The document locator, or null if the document
* location cannot be reported during the parsing of
* the document DTD. However, it is strongly
* recommended that a locator be supplied that can
* at least report the base system identifier of the
* DTD.
* @param augmentations Additional information that may include infoset
* augmentations.
*
* @throws XNIException Thrown by handler to signal an error.
*/
public void startDTD(XMLLocator locator, Augmentations augmentations)
throws XNIException;
/**
* This method notifies of the start of a parameter entity. The parameter
* entity name start with a '%' character.
*
* @param name The name of the parameter 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 parameter entities).
* @param augmentations Additional information that may include infoset
* augmentations.
*
* @throws XNIException Thrown by handler to signal an error.
*/
public void startParameterEntity(String name,
XMLResourceIdentifier identifier,
String encoding,
Augmentations augmentations) throws XNIException;
/**
* Notifies of the presence of a TextDecl line in an entity. If present,
* this method will be called immediately following the startEntity call.
*
* Note: This method is only called for external
* parameter entities referenced in the DTD.
*
* @param version The XML version, or null if not specified.
* @param encoding The IANA encoding name of the entity.
* @param augmentations Additional information that may include infoset
* augmentations.
*
* @throws XNIException Thrown by handler to signal an error.
*/
public void textDecl(String version, String encoding,
Augmentations augmentations) throws XNIException;
/**
* This method notifies the end of a parameter entity. Parameter entity
* names begin with a '%' character.
*
* @param name The name of the parameter entity.
* @param augmentations Additional information that may include infoset
* augmentations.
*
* @throws XNIException Thrown by handler to signal an error.
*/
public void endParameterEntity(String name, Augmentations augmentations)
throws XNIException;
/**
* The start of the DTD external subset.
*
* @param identifier The resource identifier.
* @param augmentations
* Additional information that may include infoset
* augmentations.
* @exception XNIException
* Thrown by handler to signal an error.
*/
public void startExternalSubset(XMLResourceIdentifier identifier,
Augmentations augmentations)
throws XNIException;
/**
* The end of the DTD external subset.
*
* @param augmentations Additional information that may include infoset
* augmentations.
*
* @throws XNIException Thrown by handler to signal an error.
*/
public void endExternalSubset(Augmentations augmentations)
throws XNIException;
/**
* A comment.
*
* @param text The text in the comment.
* @param augmentations Additional information that may include infoset
* augmentations.
*
* @throws XNIException Thrown by application to signal an error.
*/
public void comment(XMLString text, Augmentations augmentations)
throws XNIException;
/**
* A processing instruction. Processing instructions consist of a
* target name and, optionally, text data. The data is only meaningful
* to the application.
*
* Typically, a processing instruction's data will contain a series
* of pseudo-attributes. These pseudo-attributes follow the form of
* element attributes but are not parsed or presented
* to the application as anything other than text. The application is
* responsible for parsing the data.
*
* @param target The target.
* @param data The data or null if none specified.
* @param augmentations Additional information that may include infoset
* augmentations.
*
* @throws XNIException Thrown by handler to signal an error.
*/
public void processingInstruction(String target, XMLString data,
Augmentations augmentations)
throws XNIException;
/**
* An element declaration.
*
* @param name The name of the element.
* @param contentModel The element content model.
* @param augmentations Additional information that may include infoset
* augmentations.
*
* @throws XNIException Thrown by handler to signal an error.
*/
public void elementDecl(String name, String contentModel,
Augmentations augmentations)
throws XNIException;
/**
* The start of an attribute list.
*
* @param elementName The name of the element that this attribute
* list is associated with.
* @param augmentations Additional information that may include infoset
* augmentations.
*
* @throws XNIException Thrown by handler to signal an error.
*/
public void startAttlist(String elementName,
Augmentations augmentations) throws XNIException;
/**
* An attribute declaration.
*
* @param elementName The name of the element that this attribute
* is associated with.
* @param attributeName The name of the attribute.
* @param type The attribute type. This value will be one of
* the following: "CDATA", "ENTITY", "ENTITIES",
* "ENUMERATION", "ID", "IDREF", "IDREFS",
* "NMTOKEN", "NMTOKENS", or "NOTATION".
* @param enumeration If the type has the value "ENUMERATION" or
* "NOTATION", this array holds the allowed attribute
* values; otherwise, this array is null.
* @param defaultType The attribute default type. This value will be
* one of the following: "#FIXED", "#IMPLIED",
* "#REQUIRED", or null.
* @param defaultValue The attribute default value, or null if no
* default value is specified.
* @param nonNormalizedDefaultValue The attribute default value with no normalization
* performed, or null if no default value is specified.
* @param augmentations Additional information that may include infoset
* augmentations.
*
* @throws XNIException Thrown by handler to signal an error.
*/
public void attributeDecl(String elementName, String attributeName,
String type, String[] enumeration,
String defaultType, XMLString defaultValue,
XMLString nonNormalizedDefaultValue, Augmentations augmentations)
throws XNIException;
/**
* The end of an attribute list.
*
* @param augmentations Additional information that may include infoset
* augmentations.
*
* @throws XNIException Thrown by handler to signal an error.
*/
public void endAttlist(Augmentations augmentations) throws XNIException;
/**
* An internal entity declaration.
*
* @param name The name of the entity. Parameter entity names start with
* '%', whereas the name of a general entity is just the
* entity name.
* @param text The value of the entity.
* @param nonNormalizedText The non-normalized value of the entity. This
* value contains the same sequence of characters that was in
* the internal entity declaration, without any entity
* references expanded.
* @param augmentations Additional information that may include infoset
* augmentations.
*
* @throws XNIException Thrown by handler to signal an error.
*/
public void internalEntityDecl(String name, XMLString text,
XMLString nonNormalizedText,
Augmentations augmentations)
throws XNIException;
/**
* An external entity declaration.
*
* @param name The name of the entity. Parameter entity names start
* with '%', whereas the name of a general entity is just
* the entity name.
* @param identifier An object containing all location information
* pertinent to this external entity.
* @param augmentations Additional information that may include infoset
* augmentations.
*
* @throws XNIException Thrown by handler to signal an error.
*/
public void externalEntityDecl(String name,
XMLResourceIdentifier identifier,
Augmentations augmentations)
throws XNIException;
/**
* An unparsed entity declaration.
*
* @param name The name of the entity.
* @param identifier An object containing all location information
* pertinent to this unparsed entity declaration.
* @param notation The name of the notation.
* @param augmentations Additional information that may include infoset
* augmentations.
*
* @throws XNIException Thrown by handler to signal an error.
*/
public void unparsedEntityDecl(String name,
XMLResourceIdentifier identifier,
String notation, Augmentations augmentations)
throws XNIException;
/**
* A notation declaration
*
* @param name The name of the notation.
* @param identifier An object containing all location information
* pertinent to this notation.
* @param augmentations Additional information that may include infoset
* augmentations.
*
* @throws XNIException Thrown by handler to signal an error.
*/
public void notationDecl(String name, XMLResourceIdentifier identifier,
Augmentations augmentations) throws XNIException;
/**
* The start of a conditional section.
*
* @param type The type of the conditional section. This value will
* either be CONDITIONAL_INCLUDE or CONDITIONAL_IGNORE.
* @param augmentations Additional information that may include infoset
* augmentations.
*
* @throws XNIException Thrown by handler to signal an error.
*
* @see #CONDITIONAL_INCLUDE
* @see #CONDITIONAL_IGNORE
*/
public void startConditional(short type, Augmentations augmentations)
throws XNIException;
/**
* Characters within an IGNORE conditional section.
*
* @param text The ignored text.
* @param augmentations Additional information that may include infoset
* augmentations.
*
* @throws XNIException Thrown by handler to signal an error.
*/
public void ignoredCharacters(XMLString text, Augmentations augmentations)
throws XNIException;
/**
* The end of a conditional section.
*
* @param augmentations Additional information that may include infoset
* augmentations.
*
* @throws XNIException Thrown by handler to signal an error.
*/
public void endConditional(Augmentations augmentations) throws XNIException;
/**
* The end of the DTD.
*
* @param augmentations Additional information that may include infoset
* augmentations.
*
* @throws XNIException Thrown by handler to signal an error.
*/
public void endDTD(Augmentations augmentations) throws XNIException;
// set the source of this handler
public void setDTDSource(XMLDTDSource source);
// return the source from which this handler derives its events
public XMLDTDSource getDTDSource();
} // interface XMLDTDHandler