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package com.sun.xml.stream.xerces.xni;

/**
 * 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,v 1.3 2007-07-19 22:33:16 ofung Exp $
 */
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; } // interface XMLDTDHandler





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