RE: ProgramCall and ProgramParameter classes

["Tanveer, Mohammad" <MTanveer@xxxxxxxxxxxxxxxx>]

Why I am getting this message after I serialized my PCML document using

java com.ibm.as400.data.ProgramCallDocument -serialize mypcml

Stack trace:
java.io.IOException: Not in GZIP format
        java.lang.Throwable(java.lang.String)
        java.lang.Exception(java.lang.String)
        java.io.IOException(java.lang.String)
        void java.util.zip.GZIPInputStream.readHeader()
        java.util.zip.GZIPInputStream(java.io.InputStream, int)
        java.util.zip.GZIPInputStream(java.io.InputStream)
        com.ibm.as400.data.PcmlDocument
com.ibm.as400.data.ProgramCallDocument.loadSerializedPcmlDocument(java.lang.
String)
        com.ibm.as400.data.PcmlDocument
com.ibm.as400.data.ProgramCallDocument.loadPcmlDocument(java.lang.String)
        com.ibm.as400.data.ProgramCallDocument(com.ibm.as400.access.AS400,
java.lang.String)
        com.fc.frontierapps.CheckApplications(java.lang.String,
java.lang.String, java.lang.String)
        void com.fc.frontierapps.Test.main(java.lang.String [])

An I/O error occurred.
com.ibm.as400.data.PcmlException: An I/O error occurred.
        java.lang.Throwable()
        java.lang.Exception()
        com.ibm.as400.data.PcmlException(java.lang.String)
        com.ibm.as400.data.PcmlDocument
com.ibm.as400.data.ProgramCallDocument.loadSerializedPcmlDocument(java.lang.
String)
        com.ibm.as400.data.PcmlDocument
com.ibm.as400.data.ProgramCallDocument.loadPcmlDocument(java.lang.String)
        com.ibm.as400.data.ProgramCallDocument(com.ibm.as400.access.AS400,
java.lang.String)
        com.fc.frontierapps.CheckApplications(java.lang.String,
java.lang.String, java.lang.String)
        void com.fc.frontierapps.Test.main(java.lang.String [])


-----Original Message-----
From: Joe Pluta [mailto:joepluta@plutabrothers.com]
Sent: Wednesday, April 04, 2001 9:17 AM
To: JAVA400-L@midrange.com
Subject: RE: ProgramCall and ProgramParameter classes


This is excellent.  When I get back from my honeymoon, I plan on doing some
performance tests to compare the various methods of getting data from the
AS/400 in Java.  Here are some of the methods I see:

1. Calling a program via ProgramCall
2. Calling a program via PCML (though I don't use this much)
3. Calling a program through a JDBC CallableStatement
4. Direct data queue access
5. Direct file access via JDBC, native and non-native
   (what's a better term for "non-native", folks?)
6. Direct file access via toolbox drivers

Can anybody think of others?  Should I include JINI on the list?


> CallableStatement has a getBytes() method to get the output data as
> a byte array.  You should also change the way you register the output
> parameter (call it a varbinary instead of a char, for example).
> CallableStatement is a core part of JDBC so this should be very
> portable.

I'm not quite sure I understand this, David.  What's a "varbinary", and what
are its advantages/disadvantages as opposed to a character parameter?

Joe

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