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Message-ID: <31EAD63EF127D311A7C500E0290A222D02DDC723@IMSIOOPSSNTSD>
From: "Galbreath, Mark A" <GalbreathMA@state.gov>
To: "'axis-user@ws.apache.org'" <axis-user@ws.apache.org>
Subject: RE: Why use WSDL?
Date: Mon, 10 May 2004 08:52:06 -0400
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Thanks for sharing!  Good stuff!

-----Original Message-----
From: Anne Thomas Manes [mailto:anne@manes.net]
Sent: Friday, May 07, 2004 5:14 PM
To: axis-user@ws.apache.org
Subject: RE: Why use WSDL?


Yes. Convert collections to arrays or arrays within an array.

There's some discussion within the W3C WSDL group to define some =
recommended
schema examples. See the attached email.

Anne


-----Original Message-----
From: Dorner Thomas [mailto:thomas.dorner@edmb.debis.com]=20
Sent: Friday, May 07, 2004 7:57 AM
To: 'axis-user@ws.apache.org'
Subject: AW: Why use WSDL?

OkOKOkkkk,

one moment, do i understand it?

You say i should not use Hashmaps or Hashtables for SOAPConnections?

I shall use Arrays - for this I should use 2 Dimensional Arrays or =
Array in
Array?

Can u explain more detailed???? please

Thanks Tomi

-----Urspr=FCngliche Nachricht-----
Von: Galbreath, Mark A [mailto:GalbreathMA@state.gov]
Gesendet: Freitag, 7. Mai 2004 13:50
An: 'axis-user@ws.apache.org'
Betreff: RE: Why use WSDL?


You mean to say to DO expose collections AS arrays?

-----Original Message-----
From: Anne Thomas Manes [mailto:anne@manes.net]
Sent: Friday, May 07, 2004 7:50 AM
To: axis-user@ws.apache.org
Subject: RE: Why use WSDL?


Sorry -- what I meant to say ...

First rule of interoperability -- do NOT expose collections (List, Map, =
etc)
through your interface.=20

Anne

-----Original Message-----
From: Anne Thomas Manes [mailto:anne@manes.net]=20
Sent: Friday, May 07, 2004 7:40 AM
To: axis-user@ws.apache.org
Subject: RE: Why use WSDL?

Turn your hashmap into an array.

First rule of interoperability -- do expose collections (List, Map, =
etc)
through your interface.=20

Anne

-----Original Message-----
From: Dorner Thomas [mailto:thomas.dorner@edmb.debis.com]=20
Sent: Friday, May 07, 2004 2:54 AM
To: 'axis-user@ws.apache.org'
Subject: AW: Why use WSDL?

Some problems by using wsdl:

I have a auto generated wsdl (java2wsdl axis)- A friend wanna use
this wsdl by by axis c++ (wsdl2ws) to generate the classes.

My wsdl contains a Hashmap - see example:

 <wsdl:types>
- <schema targetNamespace=3D"http://xml.apache.org/xml-soap"
xmlns=3D"http://www.w3.org/2001/XMLSchema">
  <import namespace=3D"http://schemas.xmlsoap.org/soap/encoding/" />=20
- <complexType name=3D"mapItem">
- <sequence>
  <element name=3D"key" nillable=3D"true" type=3D"xsd:string" />=20
  <element name=3D"value" nillable=3D"true" type=3D"xsd:string" />=20
  </sequence>
  </complexType>
- <complexType name=3D"Map">
- <sequence>
  <element maxOccurs=3D"unbounded" minOccurs=3D"0" name=3D"item"
type=3D"apachesoap:mapItem" />=20
  </sequence>
  </complexType>
  </schema>
  </wsdl:types>


But the tool can=B4t handle the type Hashmap - exception:

org.apache.axis.wsdl.wsdl2ws.WrapperFault: unregisterd type
{http://xml.apache.org/xml-soap}Map refered


So, not even axis can handle their own wsdl?
Their is also a Hashtable in c++!?

Have somebody an idea to solve this problem?

Thanks Thomas


-----Urspr=FCngliche Nachricht-----
Von: Hittesdorf,Michael [mailto:Michael.Hittesdorf@cna.com]
Gesendet: Donnerstag, 6. Mai 2004 17:43
An: axis-user@ws.apache.org
Betreff: RE: Why use WSDL?


Some good reasons to use WSDL:

1. WSDL aids interoperability. You can post your WSDL to a directory =
and
any Web Services developer in any technology (Java, .NET, etc.) will
have everything they need to build a client to invoke your service
(assuming it conforms to established conventions/standards, such as
WS-I)

2. WSDL is more expressive than Java alone. With WSDL I can specify
message payloads, invocation styles (RPC or document) and encoding, as
well as endpoint addresses.


3. WSDL is a required artifact for many testing tools, Web Services
frameworks, and service management products. Without WSDL, you can't
take advantage of these technologies

4. WSDL is a standard.  Though Axis lets you develop 'Web Services'
without WSDL, this is not the accepted approach.  You are better off
conforming to standards and conventions when building software that
potentially needs to communicate with the outside world.

5. WSDL assists in portability. If you want to switch from Axis to
another Web Services toolkit, you will have a definition of your =
service
from which to start.


There are probably other reasons but these are what comes immediately =
to
mind.

Mick


-----Original Message-----
From: Robert Mecklenburg [mailto:mecklen@realmsys.com]

Sent: Thursday, May 06, 2004 9:17 AM
To: Axis Users
Subject: Why use WSDL?


I'm new to axis and web services and I have a basic question.

Why bother with wsdl?

Here is a service:

public class Service
{
  public String doSomething(String name) throws RemoteException
  { ...
    return result;
  }
}


Here is a client:

public class Client
{
  public String add(String name) throws AxisFault
  {
    Call call =3D new Call(getServerURL() + "/Service");
    return (String) call.invoke("doSomething", new Object[] {name});
  }
}


What could be simpler?  When I started with axis I wrote interfaces,
then ran Java2WSDL, then generated client and server stubs with
WSDL2Java.  For a similar service I wound up with 7 classes and 200
lines of code -- all of which appears to be pointless.  I can do the
same thing with 0 extra classes and two lines of simple java if I
avoid the WSDL.


So I'm trying to figure out what I'm missing.  Obviously someone
thinks WSDL is worth all the extra obscurity, code bloat, and build
complexity.  Please tell me your reasons.


Thanks!
--

Robert

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