You can put any URI you want into the location attribute on import or
include, and resolve it from schemas held in strings or relational
databases or resources in a jar file or anything else, if you provide
an EntityResolver to the parser.  See
DocumentBuilder.setEntityResolver().

You can also use set a property on the parser to specify a set of
schema locations.  The property is
http://apache.org/xml/properties/schema/external-schemaLocation and
its value is a string containing an alternating series of namespace
followed by location-URI.  This can be combined with the use of an
EntityResolver.

If you use the non-JAXP parsers provided by Xerces, you can specify an
XMLEntityResolver.  This is passed an XmlResourceIdentifier, which,
for a needed XML schema, will include the target namespace of the
schema.  You can build an XmlEntityResolver which uses some arbitrary
technique to resolve schema namespaces to the source text.

Jeff

On Wed, Jul 1, 2009 at 2:24 PM, Grubaugh,
Eric-p65363<eric.gruba...@gdc4s.com> wrote:
> I have been made aware of a bug in Xerces 2.6.2 on JRE 1.5.0_18:
>
> According to source code comments there is a bug in xerces that prevents it
> from parsing schemas with imports and includes correctly:
>
> Xerces (used by JAXP in Java 1.5 and later) does not correctly parse
> composite schema,
> (i.e. schema containing <import> and <include> elements) unless the schema
> are first written
> to disk files.  Writing schema to disk files, forces us to re-write each
> <import> and <include>
> element's schemalocation attribute to reference disk files instead.
>
> I have been searching the Bugzilla reports to determine whether this has
> been fixed or even ever reported, but I cannot find anything that seems
> directly related. I just wanted to know if this has been fixed between 2.6.2
> and the current version, as an upgrade would obviously be the simplest fix,
> or if it needs to be reported.
>
> Thank you.

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