Yes, Pete, I think you're right. The initial time is the limiting factor.
1x: 2.1 secs
10x: 2.2 secs
100x: 3.5 secs
1000x: 5.8 secs
10000x: 24 secs
This initial is probably mostly initialization other then loading. The
program was run from eclipse which means the classes are already
mostly in memory. In addition I did all these test after each other.
But in toto, the overhead is not too bad and the initial time estimate
(counting) was exaggerated. Apparently, I can count quickly.
Used code:
long j = System.currentTimeMillis();
for (int i=0; i<1; ++i) {
schema.testEclipseXSD();
}
System.out.println(System.currentTimeMillis()-j);
On 6/24/05, Pete Hendry <[EMAIL PROTECTED]> wrote:
> Startup time I would suggest with all the classes to load. Try putting
> it in a loop and timing the last loop iteration only.
>
> Pete
>
> Bob Foster wrote:
>
> > Four seconds seems like a long time to make and save an 8-line schema.
> >
> > Bob Foster
> >
> >
> > Jos van den Oever wrote:
> >
> >> Thanks for the tip, Nikhil.
> >>
> >> I've managed to create a tiny XSD Schema with this standalone code:
> >>
> >> public void testEclipseXSD() {
> >> //Create the root XSDSchema object
> >> XSDSchema xsd = XSDFactory.eINSTANCE.createXSDSchema();
> >> xsd.setTargetNamespace("myNS");
> >> xsd.setSchemaForSchemaQNamePrefix("xsd");
> >> java.util.Map qNamePrefixToNamespaceMap = xsd
> >> .getQNamePrefixToNamespaceMap();
> >>
> >> qNamePrefixToNamespaceMap.put(xsd.getSchemaForSchemaQNamePrefix(),
> >> XSDConstants.SCHEMA_FOR_SCHEMA_URI_2001);
> >>
> >> // add an element
> >> XSDComplexTypeDefinition complexType = XSDFactory.eINSTANCE
> >> .createXSDComplexTypeDefinition();
> >> complexType.setName("myElement");
> >>
> >> complexType.setDerivationMethod(XSDDerivationMethod.EXTENSION_LITERAL);
> >> XSDSimpleTypeDefinition anonSimpleType = XSDFactory.eINSTANCE
> >> .createXSDSimpleTypeDefinition();
> >> complexType.setBaseTypeDefinition(xsd
> >> .resolveSimpleTypeDefinition("myParent"));
> >> complexType.setContent(anonSimpleType);
> >> xsd.getContents().add(complexType);
> >> xsd.updateElement();
> >> dom = xsd.getDocument();
> >> serialize(new OutputStreamWriter(System.out));
> >> }
> >>
> >> The result of which is this:
> >> <?xml version="1.0" encoding="UTF-8"?>
> >> <xsd:schema targetNamespace="whatever" xmlns:Q1="whatever"
> >> xmlns:xsd="http://www.w3.org/2001/XMLSchema";>
> >> <xsd:complexType name="tst">
> >> <xsd:simpleContent>
> >> <xsd:extension base="Q1:parent"/>
> >> </xsd:simpleContent>
> >> </xsd:complexType>
> >> </xsd:schema>
> >>
> >> It's important to note that to get this to work you need to download a
> >> complete archive from http://www.eclipse.org/xsd and put these jar
> >> files in your classpath:
> >> xsd_2.1.0.jar
> >> emf.ecore_2.1.0.jar
> >> emf.common_2.1.0.jar
> >> which totals to about 1.5 Mb.
> >>
> >> Running this function takes about 4 seconds in eclipse on a 2.6GHz
> >> machine.
> >>
> >> Cheers, Jos
> >>
> >>
> >>
> >> On 6/23/05, Nikhil Dinesh <[EMAIL PROTECTED]> wrote:
> >>
> >>> Jos van den Oever wrote:
> >>>
> >>>
> >>>> On Thursday 23 June 2005 18:38, Nikhil Dinesh wrote:
> >>>>
> >>>>
> >>>>
> >>>>> You might want to check the eclipse xsd apidocs at:
> >>>>>
> >>>>> http://download.eclipse.org/tools/emf/xsd/2.1.0/javadoc/
> >>>>>
> >>>>> I "think" it gives you the functionality you want.
> >>>>> -Nikhil
> >>>>>
> >>>>>
> >>>>
> >>>>
> >>>> Hi Nikhil,
> >>>>
> >>>> That looks nice, but can you use it standalone?
> >>>> I have trouble creating a Schema instance.
> >>>>
> >>>> Cheers, Jos
> >>>>
> >>>>
> >>>
> >>> Hi Jos,
> >>>
> >>> This, I'm not sure about having never used it. From past discussions on
> >>> the group, it
> >>> does seem possible (you might want to search for previous postings on
> >>> eclipse xsd), and
> >>> if memory serves there is considerable overlap between the xerces-j and
> >>> eclipse xsd developers, so
> >>> it might be best to wait until one of them responds...also Ive noticed
> >>> that messages with eclipse xsd
> >>> in the subject receive a flurry of responses, so you might consider
> >>> reposting ;).
> >>
> >
> >
> > ---------------------------------------------------------------------
> > To unsubscribe, e-mail: [EMAIL PROTECTED]
> > For additional commands, e-mail: [EMAIL PROTECTED]
> >
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: [EMAIL PROTECTED]
> For additional commands, e-mail: [EMAIL PROTECTED]
>
>
---------------------------------------------------------------------
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
