SAX: org.xml.sax.Parser needs getXXXHandler methods

Don Park donpark at quake.net
Thu Jan 22 18:03:24 GMT 1998


I just realized that current version of org.xml.sax.Parser does not allow
handler chaining.

An implementation of the Parser might have some default handlers installed
which will get booted when setXXXHandler methods are called.  Also some post
processor might want to add some handlers on top of application's own
handlers.

I would like to see following three methods added to the API.

    public EntityHandler getEntityHandler ();
    public DocumentHandler getDocumentHandler ();
    public ErrorHandler getErrorHandler ();

In addition, I would like to have following two methods added to the Parser
API for driver-specific operations:

    public Object getDriverProperty(String name);
    public Object setDriverProperty(String name, Object value);

Property names should be prefixed with some unique values to avoid confusing
other drivers.  Note that above methods can be invoked without knowing which
driver is actually being used.  For example:

    parser.setDriverProperty("SuperDriver.lowercaseElements", Boolean.TRUE);
    parser.setDriverProperty("HungryDriver.cacheSize", new Integer(100000));

Having fun,

Don "SAX Machine" Park
donpark at quake.net

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Come visit my XML Example Catalog at
http://www.quake.net/~donpark/xmlcat.html
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