Allow the application to resolve external entities.
The Parser will call this method before opening any external
entity except the top-level document entity (including the
external DTD subset, external entities referenced within the
DTD, and external entities referenced within the document
element): the application may request that the parser resolve
the entity itself, that it use an alternative URI, or that it
use an entirely different input source.
Application writers can use this method to redirect external
system identifiers to secure and/or local URIs, to look up
public identifiers in a catalogue, or to read an entity from a
database or other input source (including, for example, a dialog
box).
If the system identifier is a URL, the SAX parser must
resolve it fully before reporting it to the application.
- Specified by:
resolveEntity in interface org.xml.sax.EntityResolver
- Parameters:
publicId - The public identifier of the external entity
being referenced, or null if none was supplied.systemId - The system identifier of the external entity
being referenced.- Returns:
- An InputSource object describing the new input source,
or null to request that the parser open a regular
URI connection to the system identifier.
- Throws:
org.xml.sax.SAXException - Any SAX exception, possibly
wrapping another exception.java.io.IOException - A Java-specific IO exception,
possibly the result of creating a new InputStream
or Reader for the InputSource.- See Also:
InputSource