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I am looking for a serious graph database system which is not written in Java.
I am not interested in RDF databases, since I expect to be able to store more complex graphs (actually hypergraphs) From within the Java camp, OrientDB is a good example of what I am looking for.
Disclaimer: This is not flamebait. I have nothing against Java, I just want to have an idea of what is out there, implemented in other languages, perhaps as an extension to other dbms, such as MySQL, MongoDb or CouchDb.
Depending on what your requirement is, you could try out Phoebus.
It isn't exactly a GraphDB but more of a distributed graph processing framework.
I am now testing the OQGRaph engine of MySQL. It looks promising but doesn't seem to support multi-graphs.
Cayley is an open-source graph inspired by the graph database behind Google's Knowledge Graph, and it is written in Go.
VTK has graph classes. It has a filter to transform graphs to tables, and another to transfer it back. It has SQL connection, too. It could work with boost, too.
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I am a computer science student and I want to do a personal project demonstrating some skills that I have learned. Recently I learned how to use SQL with PHP. Since PHP isn't as relevant as it once was, I was hoping someone could point me towards a more commonly used back-end tool where I still interact with my database through SQL queries. In my question, I specifically asked about a C++ framework since I am most comfortable with C++, but if there are much more common frameworks for what I'm looking for that use Java or Python, that would work as well.
Doing a quick google search gave me a very very large list of potential frameworks, so I was hoping someone with more knowledge in the field can point me towards one that employers would find the most relevant.
On a side note, I was also wondering if a framework is completely necessary, or if I can create my back-end just using native c++? If so, is this a valuable skill to look into?
Thanks for the help.
check out QT for the C++ GUI & MySQL for the backend...
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For a project i am looking for a simple database which is written in C (or C++) for a cross platform aplication.
After looking into HamsterDB (which looked promissing) i had found out, that it is dependen on boost on windows.
So the alternative should not relies on STL or other libraries as the Application will be run on different Eco Systems (like arduino,symbian,android,windows) and compiled on diferent IDEs.
It will store up ton 20mil keys(but usualy below 50k keys), IO will be low.
Therefor it should be as clean C (or C++) as possible.
Can somebody show me something which will fullfill this, ready made?
LevelDB is what you're looking for. It's written in C++ but C functions are available as well.
LevelDB is a fast key-value storage library written at Google that provides
an ordered mapping from string keys to string values.
Looks like Berkeley DB is an option to you. Not sure about the embedded part (especially for arduino).
You can find a complete tutorial at standford's classes.
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there's already a topic about it but I haven't found a helpful answer (http://stackoverflow.com/questions/1316320/a-c-code-generator-from-an-xml-spec).
I'm looking for a library or a tool which can read xsd grammar and then can write a corresponding object in c++ (.hpp, .cpp,...).
Except codesynthsesis, does someone know much about it?
There is a huge list of data binding code generators on http://www.w3.org/XML/Schema , just search the site for C++. Also please describe in detail why the answers on A C++ code generator from an XML spec weren't helpful.
The information at http://www.rpbourret.com/xml/XMLDataBinding.htm can be very helpful. But beware that the list of tools on that web site is slowly getting out of date. The W3C list of data binding tools http://www.w3.org/XML/Schema is outdated (the last update was way back in 2009).
I'm using the GSOAP toolkit from SourceForge for all of my XML C++ projects. Also works for plain C. It binds C/C++ to XML schemas automatically and is fully compliant with industry standards for XML, WSDL, SOAP, REST, XML-RPC, JSON, and WS-* protocols.
GSOAP is actively maintained, easy to use, and pretty efficient too.
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I'm looking for open-source projects that make use of two things: (1) C++ and (2) XML data binding. For those who don't know, data binding tools make use of XML schema and code generators such as Codesynthesis xsd, Liquid Technologies. I know CIAO/DAnCE project, an implementation of CORBA Component Model that uses XML Schema Compiler (XSC) but I'm hoping to find more.
I have tried http://www.codesynthesis.com/products/xsd/ a few months back and I thought the resulting C++ interface was pretty clean. (It's style is similar to STL / boost APIs)
Other than that the gSOAP toolkit appears to have something too. ( http://www.cs.fsu.edu/~engelen/soapdoc2.html#tth_sEc1.4 )
Some open source projects that use Codesynthesis XSD are listed on this wiki page:
http://wiki.codesynthesis.com/Open_source_projects_that_use_XSD
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I'm currently taking a course in concurrent software design, and we're focusing a lot on modeling. I see the value in this, but I am not sure if the tool we are using is horrible, good, or somewhere in between, because I can't find any other examples. We're currently using LTS Analyzer, with some more information here.
So my question is, for anyone who has done concurrent system design, do you model you application before implementing, and if so what tools do you use to do so? Thanks.
While I haven't used is myself I've heard some good things about JPF (planning to use it soon).
One of the more widely known tools for modelling & verification of concurrent/distributed systems in various industries is the SPIN model checker: http://spinroot.com/spin/
However keep in mind that no matter how correct your design and/or verified your model is, your implementation still needs to follow suit. This is where many projects fail in one way or another.