com.microstar.xml.demo

Class EventDemo

java.lang.Object

com.microstar.xml.demo.XmlApp

com.microstar.xml.demo.EventDemo

All Implemented Interfaces:

XmlHandler

Direct Known Subclasses:

ReaderDemo, StreamDemo

public class EventDemo
extends XmlApp

Demonstration application showing Æfred's event stream.

Usage: java EventDemo <url>

Or, use it as an applet, supplying the URL as the url parameter.

Since:

Ptolemy II 0.2

Author:

Copyright (c) 1997, 1998 by Microstar Software Ltd.;, written by David Megginson <dmeggins@microstar.com>

See Also:

XmlParser, XmlHandler, XmlApp

Field Summary

Fields inherited from class com.microstar.xml.demo.XmlApp

isApplet, parser

Constructor Summary

Constructors

Constructor and Description
EventDemo()

Method Summary

Modifier and Type	Method and Description
void	attribute(java.lang.String name, java.lang.String value, boolean isSpecified) Handle an attribute value assignment by printing an event.
void	charData(char[] ch, int start, int length) Handle character data by printing an event.
void	doctypeDecl(java.lang.String name, java.lang.String pubid, java.lang.String sysid) Handle a DOCTYPE declaration by printing an event.
void	endDocument() Handle the end of the document by printing an event.
void	endElement(java.lang.String name) Handle the end of an element by printing an event.
void	endExternalEntity(java.lang.String systemId) End an external entity.
void	ignorableWhitespace(char[] ch, int start, int length) Handle ignorable whitespace by printing an event.
static void	main(java.lang.String[] args) Entry point for an application.
void	processingInstruction(java.lang.String target, java.lang.String data) Handle a processing instruction by printing an event.
java.lang.Object	resolveEntity(java.lang.String publicId, java.lang.String systemId) Resolve an entity and print an event.
void	startDocument() Handle the start of the document by printing an event.
void	startElement(java.lang.String name) Handle the start of an element by printing an event.
void	startExternalEntity(java.lang.String systemId) Begin an external entity.

Methods inherited from class com.microstar.xml.demo.XmlApp

error

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

EventDemo

public EventDemo()

Method Detail

main

public static void main(java.lang.String[] args)
                 throws java.lang.Exception

Entry point for an application.

Parameters:

args - The arguments. The first argument should be the uri

Throws:

java.lang.Exception - If the parse fails

resolveEntity

public java.lang.Object resolveEntity(java.lang.String publicId,
                                      java.lang.String systemId)

Resolve an entity and print an event.

Specified by:

resolveEntity in interface XmlHandler

Overrides:

resolveEntity in class XmlApp

Parameters:

publicId - The public identifier, or null if none was supplied.

systemId - The system identifier.

Returns:

The replacement system identifier, or null to use the default.

See Also:

XmlHandler.resolveEntity(java.lang.String, java.lang.String)

startExternalEntity

public void startExternalEntity(java.lang.String systemId)

Description copied from interface: XmlHandler

Begin an external entity.

Ælfred will call this method at the beginning of each external entity, including the top-level document entity and the external DTD subset (if any).

If necessary, you can use this method to track the location of the current entity so that you can resolve relative URIs correctly.

Specified by:

startExternalEntity in interface XmlHandler

Overrides:

startExternalEntity in class XmlApp

Parameters:

systemId - The URI of the external entity that is starting.

See Also:

XmlHandler.endExternalEntity(java.lang.String), XmlHandler.resolveEntity(java.lang.String, java.lang.String)

endExternalEntity

public void endExternalEntity(java.lang.String systemId)

Description copied from interface: XmlHandler

End an external entity.

Ælfred will call this method at the end of each external entity, including the top-level document entity and the external DTD subset.

If necessary, you can use this method to track the location of the current entity so that you can resolve relative URIs correctly.

Specified by:

endExternalEntity in interface XmlHandler

Overrides:

endExternalEntity in class XmlApp

Parameters:

systemId - The URI of the external entity that is ending.

See Also:

XmlHandler.startExternalEntity(java.lang.String), XmlHandler.resolveEntity(java.lang.String, java.lang.String)

startDocument

public void startDocument()

Handle the start of the document by printing an event.

Specified by:

startDocument in interface XmlHandler

Overrides:

startDocument in class XmlApp

See Also:

XmlHandler.startDocument()

endDocument

public void endDocument()

Handle the end of the document by printing an event.

Specified by:

endDocument in interface XmlHandler

Overrides:

endDocument in class XmlApp

See Also:

XmlHandler.endDocument()

doctypeDecl

public void doctypeDecl(java.lang.String name,
                        java.lang.String pubid,
                        java.lang.String sysid)

Handle a DOCTYPE declaration by printing an event.

Specified by:

doctypeDecl in interface XmlHandler

Overrides:

doctypeDecl in class XmlApp

Parameters:

name - The document type name.

pubid - The public identifier, or null if unspecified.

sysid - The system identifier, or null if unspecified.

See Also:

XmlHandler.doctypeDecl(java.lang.String, java.lang.String, java.lang.String)

attribute

public void attribute(java.lang.String name,
                      java.lang.String value,
                      boolean isSpecified)

Handle an attribute value assignment by printing an event.

Specified by:

attribute in interface XmlHandler

Overrides:

attribute in class XmlApp

Parameters:

name - The name of the attribute.

value - The value of the attribute, or null if the attribute is #IMPLIED.

isSpecified - True if the value was specified, false if it was defaulted from the DTD.

See Also:

XmlHandler.attribute(java.lang.String, java.lang.String, boolean)

startElement

public void startElement(java.lang.String name)

Handle the start of an element by printing an event.

Specified by:

startElement in interface XmlHandler

Overrides:

startElement in class XmlApp

Parameters:

name - The element type name.

See Also:

XmlHandler.startElement(java.lang.String)

endElement

public void endElement(java.lang.String name)

Handle the end of an element by printing an event.

Specified by:

endElement in interface XmlHandler

Overrides:

endElement in class XmlApp

Parameters:

name - The element type name.

See Also:

XmlHandler.endElement(java.lang.String)

charData

public void charData(char[] ch,
                     int start,
                     int length)

Handle character data by printing an event.

Specified by:

charData in interface XmlHandler

Overrides:

charData in class XmlApp

Parameters:

ch - The character data.

start - The starting position in the array.

length - The number of characters available.

See Also:

XmlHandler.charData(char[], int, int)

ignorableWhitespace

public void ignorableWhitespace(char[] ch,
                                int start,
                                int length)

Handle ignorable whitespace by printing an event.

Specified by:

ignorableWhitespace in interface XmlHandler

Overrides:

ignorableWhitespace in class XmlApp

Parameters:

ch - The literal whitespace characters.

start - The starting position in the array.

length - The number of whitespace characters available.

See Also:

XmlHandler.ignorableWhitespace(char[], int, int)

processingInstruction

public void processingInstruction(java.lang.String target,
                                  java.lang.String data)

Handle a processing instruction by printing an event.

Specified by:

processingInstruction in interface XmlHandler

Overrides:

processingInstruction in class XmlApp

Parameters:

target - The target (the name at the start of the PI).

data - The data, if any (the rest of the PI).

See Also:

XmlHandler.processingInstruction(java.lang.String, java.lang.String)