Looking at SOAPMappingRegistry, the following classes are all serialized as attachments.
javax.mail.internet.MimeBodyPart.class, java.io.InputStream.class, javax.activation.DataSource.class, javax.activation.DataHandler.class, If your method returns your List as, say, an InputStream, I believe you will find its contents are included as an attachment. One thing to watch out for with attachments. Last time I looked, .NET only supported DIME attachments. The SOAP Attachments specs (which MSFT co-authored) calls for MIME attachments, which is what Apache SOAP uses. Scott Nichol Do not send e-mail directly to this e-mail address, because it is filtered to accept only mail from specific mail lists. ----- Original Message ----- From: "Praveen Peddi" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Friday, December 19, 2003 11:31 AM Subject: Re: Sending response as stream > Hello all, > Is there a way a method in a soap service can return an object > (java.util.List) as attachment with out using soap specific classes. > I was looking at the mime example in soap samples and it was using > ByteArrayDatasource which is soap specific class. > The example I saw looked like this: > DataSource ds = new ByteArrayDataSource(new File(fname[i]), null); > > I think my question probably is "Is there any way to build a DataHandler > object w/o using apache soap tool on the server side?" > > I am trying send the java.util.List as an attachment. the list has strings > in it. The reason I want to send it as attachment is because the list has > 1000s of strings and sending it as List will fillup the soap envelop and > putting overhead of parsing the huge xml which in turn is filling up all my > memory with the parsed document. If I send the same list as an attchment, I > am assuming that I will not have this problem. The size of the list itself > is not a problem I think. Its the size of the soap envelop thats killing the > app. > > Am I right? > > The reason I do not want to use soap specific classes is because our soap > services are plain java classes and designed such a way that we can swith to > any soap tool in the future. > > Thanks. > > Praveen > > ----- Original Message ----- > From: "Martin Gainty" <[EMAIL PROTECTED]> > To: <[EMAIL PROTECTED]> > Sent: Wednesday, December 17, 2003 1:15 AM > Subject: Re: Sending response as stream > > > > Read this > > http://www.w3.org/2000/xp/Group/2/07/SOAP-AF/aftf-soap-af.html > > Regards, > > Martin > > ----- Original Message ----- > > From: "Praveen Peddi" <[EMAIL PROTECTED]> > > To: <[EMAIL PROTECTED]> > > Sent: Tuesday, December 16, 2003 11:32 AM > > Subject: Re: Sending response as stream > > > > > > > Does it mean that attachments are sent as streams and not part of soap > > > envelop? > > > > > > I think my problem here is the memory and time. So If I send it as > > > attachment, the client can read the stream and may be save it to disk > > rather > > > than filling the memory? > > > > > > Praveen > > > > > > ----- Original Message ----- > > > From: "Scott Nichol" <[EMAIL PROTECTED]> > > > To: <[EMAIL PROTECTED]> > > > Sent: Tuesday, December 16, 2003 10:54 AM > > > Subject: Re: Sending response as stream > > > > > > > > > Attachments are the one way I can think of to minimize the processing > > Apache > > > SOAP will do. > > > > > > Scott Nichol > > > > > > Do not send e-mail directly to this e-mail address, > > > because it is filtered to accept only mail from > > > specific mail lists. > > > ----- Original Message ----- > > > From: "Praveen Peddi" <[EMAIL PROTECTED]> > > > To: <[EMAIL PROTECTED]> > > > Sent: Tuesday, December 16, 2003 10:30 AM > > > Subject: Sending response as stream > > > > > > > > > HI all, > > > We are using apache soap both on serverside and on client side. > > > I am trying to write a method in soap service that returns thousands of > > > objects that are converted into xml elements. Returning the whole > response > > > as an xml string is taking for ever. I am wondering if I can send the > > > response as an output stream rather than as xml string. > > > > > > How about sending the response as attachment. Will it do any better. I > > think > > > attachments are sent as streams if I am not wrong. > > > > > > Thanks > > > Praveen > > > > > > > > > >
