Java virtual processors

Java™ UDRs and Java applications run on specialized virtual processors, called Java virtual processors (JVPs).

A JVP embeds a Java virtual machine (JVM) in its code. A JVP has the same capabilities as a CPU VP in that it can process complete SQL queries.

You can specify as many JVPs as your operating system allows. If you run many Java UDRs or parallel PDQ queries with Java UDRs, you must configure more JVPs. For more information about UDRs written in Java, see HCL J/Foundation Developer's Guide.

Use the VPCLASS configuration parameter with the jvp keyword to configure JVPs. For more information, see the configuration parameters chapter in the HCL Informix® Administrator's Reference.


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