simplegraph | memory Graph Database/Cache : learn | Database library

 by   enterlab Java Version: Current License: No License

kandi X-RAY | simplegraph Summary

kandi X-RAY | simplegraph Summary

simplegraph is a Java library typically used in Database applications. simplegraph has no bugs, it has no vulnerabilities and it has high support. However simplegraph build file is not available. You can download it from GitHub.

A really Simple, rudimentary Graph (in-memory) DB implemented in Java. Can be used as an application cache storage, and is really fast. But mainly this is meant for people (students?) that want to find out how a graph database works, by looking at code instead of reading books. The SimpleGraph is implemented as a TripleStore, containing tuples (well, actually triples) of Subject, Object and Predicate. For more info on Triplestores, check here:
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            kandi-support Support

              simplegraph has a highly active ecosystem.
              It has 9 star(s) with 4 fork(s). There are 1 watchers for this library.
              OutlinedDot
              It had no major release in the last 6 months.
              simplegraph has no issues reported. There are no pull requests.
              It has a positive sentiment in the developer community.
              The latest version of simplegraph is current.

            kandi-Quality Quality

              simplegraph has 0 bugs and 0 code smells.

            kandi-Security Security

              simplegraph has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
              simplegraph code analysis shows 0 unresolved vulnerabilities.
              There are 0 security hotspots that need review.

            kandi-License License

              simplegraph does not have a standard license declared.
              Check the repository for any license declaration and review the terms closely.
              OutlinedDot
              Without a license, all rights are reserved, and you cannot use the library in your applications.

            kandi-Reuse Reuse

              simplegraph releases are not available. You will need to build from source code and install.
              simplegraph has no build file. You will be need to create the build yourself to build the component from source.
              simplegraph saves you 203 person hours of effort in developing the same functionality from scratch.
              It has 499 lines of code, 24 functions and 3 files.
              It has high code complexity. Code complexity directly impacts maintainability of the code.

            Top functions reviewed by kandi - BETA

            kandi has reviewed simplegraph and discovered the below as its top functions. This is intended to give you an instant insight into simplegraph implemented functionality, and help decide if they suit your requirements.
            • The test test program
            • Generate sample graph for a sample
            • Perform a query
            • Adds bindings to the bindings map
            • Add an object
            • Add to the index
            • Adds a subject and object to the index
            • Gets the object registered with the given subject ID
            • Get the triples for a given subject and object
            • Check whether a predicate evaluates to true
            • Indicates whether the given object exists
            • Return true if predicate is true
            • Returns true if the given subject exists
            Get all kandi verified functions for this library.

            simplegraph Key Features

            No Key Features are available at this moment for simplegraph.

            simplegraph Examples and Code Snippets

            No Code Snippets are available at this moment for simplegraph.

            Community Discussions

            QUESTION

            Why does LightGraphs.betweenness_centrality() run so long
            Asked 2021-Feb-19 at 19:58

            When I try to calculate the betweenness_centrality() of my SimpleWeightedGraph with julia's LightGraphs package it runs indefinitely. It keeps on increasing it's RAM usage until at some point it crashes without an error message. Is the something wrong with my graph? Or what would be the best way to find the cause of this problem?

            My graphs are not generated by LightGraphs but by another library, FlashWeave. I'm don't know if that matters...

            The problem does not occur for unweighted SimpleGraph's or for the weighted graph I created in LightGraphs...

            ...

            ANSWER

            Answered 2021-Feb-19 at 19:58

            Did you check if your graph contains negative weights? LightGraphs.betweenness_centrality() uses Dijkstra's shortest paths to calculate betweenness centrality, and thus expect non-negative weights.

            LightGraphs.betweenness_centrality() doesn't check for illegal/nonsensical graphs. That's why it didn't throw an error. The issue is already reported here, but for now, check your own graphs if your not sure they are legal.

            Source https://stackoverflow.com/questions/66257489

            QUESTION

            How to remove self-loops in Lightgraphs
            Asked 2021-Jan-10 at 13:09

            I am new to Julia and LightGraphs and I have been trying to find the most efficient way of detecting and removing self-loops. So far, the only way I have found is to iterate over all nodes in the Simplegraph, check whether it has a self-loop, and remove them. Is there any better way like using this combination in Python NetworkX: G.remove_edges_from(G.selfloop_edges())?

            The way I am doing it right now:

            ...

            ANSWER

            Answered 2021-Jan-08 at 16:01

            that's probably the best way to do it conditionally, but you can just call rem_edge!(G, node, node) without the has_edge() check - it returns a bool indicating whether the edge was removed so is safe to use if there's not an actual edge there.

            Source https://stackoverflow.com/questions/65629641

            QUESTION

            Have trouble supplying Color Map to depth first search in boost graph library
            Asked 2020-Dec-09 at 13:20

            I am trying to use depth first search starting from a particular vertex. For that I need to supply a visitor and a color map.

            If I don't supply a starting vertex then I don't need to supply a color map either and everything works fine. However, I didn't find a signature that would accept a starting vertex without requiring a color map.

            I use C++ 17 (Embarcadero C++ Builder) Here is the code:

            ...

            ANSWER

            Answered 2020-Dec-09 at 13:20

            By wrapping your visitor in boost::visitor you are confusing with the named-parameter overload. Just pass the visitor:

            Source https://stackoverflow.com/questions/65211567

            QUESTION

            how to create a subgraph with jgrapht
            Asked 2020-Sep-24 at 17:01

            I am using jgrapht in Java to work a network-based algorithm. I first read an adjacency list and then create jgrapht based graph. Now, given a subset of nodes called subNodes, I'd like to generate a sub graph. I am trying to use Subgraph class as shown at this link, however, I could not have it worked.

            ...

            ANSWER

            Answered 2020-Sep-24 at 17:01

            It seems you are referring to some old javadoc. Not sure why you are specifically using the 1.1.0. Here's an example using the 1.5 version of jgrapht:

            Source https://stackoverflow.com/questions/64032963

            QUESTION

            (BOOST) Filter out the edges of a graph iteratively
            Asked 2020-Sep-23 at 10:07

            I have a connected graph A (level 0) and I want to populate the next level with graphs B,C,D... by iteratively removing one edge at a time in A. Here is how my code begins:

            ...

            ANSWER

            Answered 2020-Sep-23 at 10:07

            Thanks to the discussion on this question (here), I was able to come up with a solution to my problem. I took the same approach as in the thread and decided to 'blacklist' each edge individually:

            Source https://stackoverflow.com/questions/63996135

            QUESTION

            how to create an induced sub graph in JgraphT
            Asked 2020-May-26 at 04:53

            Let G=(V,E) be an undirected graph. I'd like to create an induced sub graph for a given subset of nodes U with JgraphT in Java.

            Here is an adjacency list.

            ...

            ANSWER

            Answered 2020-May-26 at 04:53

            To create induced subgraphs in JGraphT, use the MaskSubgraph or AsSubgraph classes. In your particular usecase, use the AsSubgraph:

            Source https://stackoverflow.com/questions/61999299

            QUESTION

            How to make a JAR from simplegraph with underlying sources from tinkerpop/gremlin
            Asked 2020-Feb-17 at 17:48

            I have made a JAR from SimpleGraph which I want to use it in a separat project. In my own project I can see and use the direct classes of SimpleGraph like ExcelSystem etc. but can not use the underlying classes as Vertex etc. from Tinkerpop/Gremlin. Is there a way to include these into the JAR generation?

            ...

            ANSWER

            Answered 2020-Feb-17 at 17:48

            The installation instructions at http://www.bitplan.com/index.php/SimpleGraph-Installation have been updated according to your question.

            To include simplegraph as a single jar dependency for your project you might want to run:

            Source https://stackoverflow.com/questions/60264416

            Community Discussions, Code Snippets contain sources that include Stack Exchange Network

            Vulnerabilities

            No vulnerabilities reported

            Install simplegraph

            You can download it from GitHub.
            You can use simplegraph like any standard Java library. Please include the the jar files in your classpath. You can also use any IDE and you can run and debug the simplegraph component as you would do with any other Java program. Best practice is to use a build tool that supports dependency management such as Maven or Gradle. For Maven installation, please refer maven.apache.org. For Gradle installation, please refer gradle.org .

            Support

            For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .
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            https://github.com/enterlab/simplegraph.git

          • CLI

            gh repo clone enterlab/simplegraph

          • sshUrl

            git@github.com:enterlab/simplegraph.git

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