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>From our PCML expert ... In V5R1, we made a change to the serialization logic for performance. Prior to V5R1, we zipped the serialized PCML. Loading serialized PCML was slower than parsing PCML source. We found that we were getting killed by the performance of unzipping the serialized PCML. Since most people ship the serialized PCML in their jar (which is also zipped), we decided it cost too much with no benefit to also zip the serialized PCML. It looks to me like what happened here is that the PCML was serialized with V5R1 but was loaded with older PCML code. David Wall AS/400 Toolbox for Java "Tanveer, Mohammad" To: "'JAVA400-L@midrange.com'" <JAVA400-L@midrange.com> <MTanveer@friedman cc: corp.com> Subject: RE: ProgramCall and ProgramParameter classes Sent by: java400-l-admin@mi drange.com 11/02/2001 12:08 PM Please respond to java400-l 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 +--- | This is the JAVA/400 Mailing List! | To submit a new message, send your mail to JAVA400-L@midrange.com. | To subscribe to this list send email to JAVA400-L-SUB@midrange.com. | To unsubscribe from this list send email to JAVA400-L-UNSUB@midrange.com. | Questions should be directed to the list owner: joe@zappie.net +--- _______________________________________________ This is the Java Programming on and around the iSeries / AS400 (JAVA400-L) mailing list To post a message email: JAVA400-L@midrange.com To subscribe, unsubscribe, or change list options, visit: http://lists.midrange.com/cgi-bin/listinfo/java400-l or email: JAVA400-L-request@midrange.com Before posting, please take a moment to review the archives at http://archive.midrange.com/java400-l.
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