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If a SAX application needs information about notations and unparsed entities, then the application implements this interface and registers an instance with the SAX parser using the parser's setDTDHandler method. The parser uses the instance to report notation and unparsed entity declarations to the application.
Note that this interface includes only those DTD events that the XML recommendation requires processors to report: notation and unparsed entity declarations.
The SAX parser may report these events in any order, regardless
of the order in which the notations and unparsed entities were
declared; however, all DTD events must be reported after the
document handler's startDocument event, and before the first
startElement event.
(If the LexicalHandler is
used, these events must also be reported before the endDTD event.)
It is up to the application to store the information for future use (perhaps in a hash table or object tree). If the application encounters attributes of type "NOTATION", "ENTITY", or "ENTITIES", it can use the information that it obtained through this interface to find the entity and/or notation corresponding with the attribute value.
org.xml.sax.XMLReader#setDTDHandler
| Modifier and Type | Method and Description |
|---|---|
| public void | notationDecl(String
The notation name. name, String The notation's public identifier, or null if
none was given. publicId, String The notation's system identifier, or null if
none was given. systemId)Receive notification of a notation declaration event. |
| public default void | startDTD(String
The document type name. name, String The declared public identifier for the
external DTD subset, or null if none was declared. publicId, String The declared system identifier for the
external DTD subset, or null if none was declared.
(Note that this is not resolved against the document
base URI.) systemId)Receive notification of the start of DTD declarations. |
| public default void | |
| public void | unparsedEntityDecl(String
The unparsed entity's name. name, String The entity's public identifier, or null if none
was given. publicId, String The entity's system identifier. systemId, String The name of the associated notation. notationName)Receive notification of an unparsed entity declaration event. |
| notationDecl | back to summary |
|---|---|
| public void notationDecl(String name, String publicId, String systemId) throws SAXException Receive notification of a notation declaration event. It is up to the application to record the notation for later reference, if necessary; notations may appear as attribute values and in unparsed entity declarations, and are sometime used with processing instruction target names. At least one of publicId and systemId must be non-null. If a system identifier is present, and it is a URL, the SAX parser must resolve it fully before passing it to the application through this event. There is no guarantee that the notation declaration will be reported before any unparsed entities that use it.
| |
| startDTD | back to summary |
|---|---|
| public default void startDTD(String name, String publicId, String systemId) throws SAXException Receive notification of the start of DTD declarations. The start/endDTD events appear within the start/endDocument events from ContentHandler.
| |
| startInternalSub | back to summary |
|---|---|
| public default void startInternalSub() throws SAXException Receive notification of the start of DTD internal subset.
| |
| unparsedEntityDecl | back to summary |
|---|---|
| public void unparsedEntityDecl(String name, String publicId, String systemId, String notationName) throws SAXException Receive notification of an unparsed entity declaration event. Note that the notation name corresponds to a notation
reported by the If the system identifier is a URL, the parser must resolve it fully before passing it to the application.
| |