java - Using JTOpen to read from a data area on an AS400, does the data area object get locked? -


given decimaldataarea jtopen, when reading , writing data area, object on as400 locked, preventing simultaneous writes other applications on as400?

this sample code javadoc on how read/write, etc.

// prepare work system named "my400". as400 system = new as400("my400");  // create decimaldataarea object. qsysobjectpathname path = new qsysobjectpathname("mylib", "mydata", "dtaara"); decimaldataarea dataarea = new decimaldataarea(system, path.getpath());  // create decimal data area on system using default values. dataarea.create();  // clear data area. dataarea.clear();  // write data area. dataarea.write(new bigdecimal("1.2"));  // read data area. bigdecimal data = dataarea.read();  // delete data area system. dataarea.delete();

http://javadoc.midrange.com/jtopen/com/ibm/as400/access/decimaldataarea.html

no ... data area operations atomic, no locking occurs unless yourself.

internally, implementation uses chgdtaara update data area.

wouldn't bad enhancement though.


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