The Java package JRIO

The JRIO package is a collection of Java classes to permit direct handling of files with a record or block structure and for record- or block-oriented input/output to such files. Naturally these files include above all the BS2000 files of DMS/DVS.

In contrast to normal Java I/O (java.io package), these interfaces also allow operations which cannot be expressed with the given Java IO classes (which we cannot extend).

The interfaces and implementations of JRIO are contained in the proprietary package com.fujitsu.ts.jrio and further subpackages. These will not be available in other Java implementations. However, as far as it makes sense technically, they are very similar to the corresponding IBM package com.ibm.recordio.