On Thu, Mar 22, 2018 at 5:27 PM, Graham Harris <harris...@gmail.com> wrote:
> John, are you specifically after a 'graph database', or a 'pure java' > database? > My area of curiosity right now is "graph database", not "java". > > H2 is an example of a pure java database, which is >99% zIIP eligible, in > my experience. > I've used the Derby database long ago, when my interest was in learning some java. > > Any pure java library (typically in the form of jar file[s]) should 'just > work' on z/OS (i.e. no porting required). > That has been my experience too. I wrote a java application on Linux (using Derby) and just binary FTP'd the resultant jar to Windows, Mac OSX, and z/OS. It ran identically on all four platforms. > > Havent quite worked out though, if Neo4j is actually a java library, or > something that is "binaried" to specific platforms. There seems to be a > jar file available, but is not clear if that is the actual product, or just > some 'helpers' to interface with java. > I have downloaded the Neo4j source to my Linux home system. As far as "language files" go, all of them that I saw were Java. > > Neo4j advertises being capable of generating actual graphs from DOT > directed graph notation, and if that is do-able from a pure java > capability, that is something I have been patiently waiting for for many > many years.....so will be investigating that further, for sure. > > > On 22 March 2018 at 16:56, John McKown <john.archie.mck...@gmail.com> > wrote: > > > I am guessing that most z/OS shops which as a true database environment > are > > most likely running Db2. There really isn't much else out there since > > Oracle decided not to upgrade from 10.2 on z/OS (as best as I can tell). > > > > I have been reading up on graph databases. In particular, I've watched a > > few videos on Neo4j. Some of the concepts (nodes or vertices and edges or > > relations) seem to be similar to the old network database model, to me. > But > > it is very interesting. What is really interesting (again to me) is that > > Neo4j is both open source (parts AGPL, other parts GPL) and it is written > > in Java. Being written in Java makes it interesting since "pure Java" > code > > can run "for free" (no MSU usage) on a zIIP. Naturally, I have downloaded > > the source. But I am struggling to actually get it to compile & pass its > > tests on my Linux/Intel system. The build system is in Maven, which I > don't > > know. But I was thinking that it would be quite interesting to see if > Neo4j > > could be built and run on z/OS. > > > > So I'm curious if anyone else finds this interesting. And please forgive > me > > for not saving this for our usual "Friday" discussions of "not really > z/OS" > > topics. > > > > -- > > I have a theory that it's impossible to prove anything, but I can't prove > > it. > > > > Maranatha! <>< > > John McKown > > > > ---------------------------------------------------------------------- > > For IBM-MAIN subscribe / signoff / archive access instructions, > > send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN > > > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN > -- I have a theory that it's impossible to prove anything, but I can't prove it. Maranatha! <>< John McKown ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
