com.sun.xml.dtdparser.DTDEventListener Maven / Gradle / Ivy
/*
* Copyright (c) 1998, 2018 Oracle and/or its affiliates. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Distribution License v. 1.0, which is available at
* http://www.eclipse.org/org/documents/edl-v10.php.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
package com.sun.xml.dtdparser;
import org.xml.sax.Locator;
import org.xml.sax.SAXException;
import org.xml.sax.SAXParseException;
import java.util.EventListener;
/**
* All DTD parsing events are signaled through this interface.
*/
public interface DTDEventListener extends EventListener {
public void setDocumentLocator(Locator loc);
/**
* Receive notification of a Processing Instruction.
* Processing instructions contain information meaningful
* to the application.
*
* @param target The target of the proceessing instruction
* which should have meaning to the application.
* @param data The instruction itself which should contain
* valid XML characters.
* @throws SAXException
*/
public void processingInstruction(String target, String data)
throws SAXException;
/**
* Receive notification of a Notation Declaration.
* Notation declarations are used by elements and entities
* for identifying embedded non-XML data.
*
* @param name The notation name, referred to by entities and
* elements.
* @param publicId The public identifier
* @param systemId The system identifier
*/
public void notationDecl(String name, String publicId, String systemId)
throws SAXException;
/**
* Receive notification of an unparsed entity declaration.
* Unparsed entities are non-XML data.
*
* @param name The name of the unparsed entity.
* @param publicId The public identifier
* @param systemId The system identifier
* @param notationName The associated notation
*/
public void unparsedEntityDecl(String name, String publicId,
String systemId, String notationName)
throws SAXException;
/**
* Receive notification of a internal general entity declaration event.
*
* @param name The internal general entity name.
* @param value The value of the entity, which may include unexpanded
* entity references. Character references will have been
* expanded.
* @throws SAXException
* @see #externalGeneralEntityDecl(String, String, String)
*/
public void internalGeneralEntityDecl(String name, String value)
throws SAXException;
/**
* Receive notification of an external parsed general entity
* declaration event.
*
*
If a system identifier is present, and it is a relative URL, the
* parser will have resolved it fully before passing it through this
* method to a listener.
*
* @param name The entity name.
* @param publicId The entity's public identifier, or null if
* none was given.
* @param systemId The entity's system identifier.
* @throws SAXException
* @see #unparsedEntityDecl(String, String, String, String)
*/
public void externalGeneralEntityDecl(String name, String publicId,
String systemId)
throws SAXException;
/**
* Receive notification of a internal parameter entity declaration
* event.
*
* @param name The internal parameter entity name.
* @param value The value of the entity, which may include unexpanded
* entity references. Character references will have been
* expanded.
* @throws SAXException
* @see #externalParameterEntityDecl(String, String, String)
*/
public void internalParameterEntityDecl(String name, String value)
throws SAXException;
/**
* Receive notification of an external parameter entity declaration
* event.
*
*
If a system identifier is present, and it is a relative URL, the
* parser will have resolved it fully before passing it through this
* method to a listener.
*
* @param name The parameter entity name.
* @param publicId The entity's public identifier, or null if
* none was given.
* @param systemId The entity's system identifier.
* @throws SAXException
* @see #unparsedEntityDecl(String, String, String, String)
*/
public void externalParameterEntityDecl(String name, String publicId,
String systemId)
throws SAXException;
/**
* Receive notification of the beginning of the DTD.
*
* @param in Current input entity.
* @see #endDTD()
*/
public void startDTD(InputEntity in)
throws SAXException;
/**
* Receive notification of the end of a DTD. The parser will invoke
* this method only once.
*
* @throws SAXException
* @see #startDTD(InputEntity)
*/
public void endDTD()
throws SAXException;
/**
* Receive notification that a comment has been read.
*
*
Note that processing instructions are the mechanism designed
* to hold information for consumption by applications, not comments.
* XML systems may rely on applications being able to access information
* found in processing instructions; this is not true of comments, which
* are typically discarded.
*
* @param text the text within the comment delimiters.
* @throws SAXException
*/
public void comment(String text)
throws SAXException;
/**
* Receive notification of character data.
*
*
The Parser will call this method to report each chunk of
* character data. SAX parsers may return all contiguous character
* data in a single chunk, or they may split it into several
* chunks; however, all of the characters in any single event
* must come from the same external entity, so that the Locator
* provides useful information.
*
*
The application must not attempt to read from the array
* outside of the specified range.
*
*
Note that some parsers will report whitespace using the
* ignorableWhitespace() method rather than this one (validating
* parsers must do so).
*
* @param ch The characters from the DTD.
* @param start The start position in the array.
* @param length The number of characters to read from the array.
* @throws SAXException
* @see #ignorableWhitespace(char[], int, int)
*/
public void characters(char ch[], int start, int length)
throws SAXException;
/**
* Receive notification of ignorable whitespace in element content.
*
*
Validating Parsers must use this method to report each chunk
* of ignorable whitespace (see the W3C XML 1.0 recommendation,
* section 2.10): non-validating parsers may also use this method
* if they are capable of parsing and using content models.
*
*
SAX parsers may return all contiguous whitespace in a single
* chunk, or they may split it into several chunks; however, all of
* the characters in any single event must come from the same
* external entity, so that the Locator provides useful
* information.
*
*
The application must not attempt to read from the array
* outside of the specified range.
*
* @param ch The characters from the DTD.
* @param start The start position in the array.
* @param length The number of characters to read from the array.
* @throws SAXException
* @see #characters(char[], int, int)
*/
public void ignorableWhitespace(char ch[], int start, int length)
throws SAXException;
/**
* Receive notification that a CDATA section is beginning. Data in a
* CDATA section is is reported through the appropriate event, either
* characters() or ignorableWhitespace.
*
* @throws SAXException
* @see #endCDATA()
*/
public void startCDATA() throws SAXException;
/**
* Receive notification that the CDATA section finished.
*
* @throws SAXException
* @see #startCDATA()
*/
public void endCDATA() throws SAXException;
public void fatalError(SAXParseException e)
throws SAXException;
public void error(SAXParseException e) throws SAXException;
public void warning(SAXParseException err) throws SAXException;
public final short CONTENT_MODEL_EMPTY = 0;
public final short CONTENT_MODEL_ANY = 1;
public final short CONTENT_MODEL_MIXED = 2;
public final short CONTENT_MODEL_CHILDREN = 3;
/**
* receives notification that parsing of content model is beginning.
*
* @param elementName name of the element whose content model is going to be defined.
* @param contentModelType {@link #CONTENT_MODEL_EMPTY}
* this element has EMPTY content model. This notification
* will be immediately followed by the corresponding endContentModel.
* {@link #CONTENT_MODEL_ANY}
* this element has ANY content model. This notification
* will be immediately followed by the corresponding endContentModel.
* {@link #CONTENT_MODEL_MIXED}
* this element has mixed content model. #PCDATA will not be reported.
* each child element will be reported by mixedElement method.
* {@link #CONTENT_MODEL_CHILDREN}
* this elemen has child content model. The actual content model will
* be reported by childElement, startModelGroup, endModelGroup, and
* connector methods. Possible call sequences are:
*
* START := MODEL_GROUP
* MODEL_GROUP := startModelGroup TOKEN (connector TOKEN)* endModelGroup
* TOKEN := childElement
* | MODEL_GROUP
*/
public void startContentModel(String elementName, short contentModelType) throws SAXException;
/**
* receives notification that parsing of content model is finished.
*/
public void endContentModel(String elementName, short contentModelType) throws SAXException;
public final short USE_NORMAL = 0;
public final short USE_IMPLIED = 1;
public final short USE_FIXED = 2;
public final short USE_REQUIRED = 3;
/**
* For each entry in an ATTLIST declaration,
* this event will be fired.
*
*
* DTD allows the same attributes to be declared more than
* once, and in that case the first one wins. I think
* this method will be only fired for the first one,
* but I need to check.
*/
public void attributeDecl(String elementName, String attributeName, String attributeType,
String[] enumeration, short attributeUse, String defaultValue) throws SAXException;
public void childElement(String elementName, short occurence) throws SAXException;
/**
* receives notification of child element of mixed content model.
* this method is called for each child element.
*
* @see #startContentModel(String, short)
*/
public void mixedElement(String elementName) throws SAXException;
public void startModelGroup() throws SAXException;
public void endModelGroup(short occurence) throws SAXException;
public final short CHOICE = 0;
public final short SEQUENCE = 1;
/**
* Connectors in one model group is guaranteed to be the same.
*
*
* IOW, you'll never see an event sequence like (a|b,c)
*/
public void connector(short connectorType) throws SAXException;
public final short OCCURENCE_ZERO_OR_MORE = 0;
public final short OCCURENCE_ONE_OR_MORE = 1;
public final short OCCURENCE_ZERO_OR_ONE = 2;
public final short OCCURENCE_ONCE = 3;
}