https://github.com/ashwanthkumar/imgraph

Nothing fancy here yet
https://github.com/ashwanthkumar/imgraph

Last synced: about 7 hours ago
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Nothing fancy here yet

• Host: GitHub
• URL: https://github.com/ashwanthkumar/imgraph
• Owner: ashwanthkumar
• Created: 2014-09-13T05:55:29.000Z (about 10 years ago)
• Default Branch: master
• Last Pushed: 2017-05-25T01:16:17.000Z (over 7 years ago)
• Last Synced: 2024-04-14T09:19:01.729Z (7 months ago)
• Language: Scala
• Homepage:
• Size: 63.5 KB
• Stars: 1
• Watchers: 3
• Forks: 1
• Open Issues: 1
• Metadata Files:
  • Readme: README.md

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README

        
# imGraph

Attempt at implementing [imGraph](http://euranova.eu/upl_docs/publications/imgraph--a-distributed-in-memory-graph-database.pdf) paper. 

[![Build Status](https://travis-ci.org/ashwanthkumar/imgraph.svg?branch=master)](https://travis-ci.org/ashwanthkumar/imgraph)

### Query DSL

imGraph has a DSL for querying Graph data, inspired from Neo4J's [Cypher](http://docs.neo4j.org/chunked/stable/cypher-query-lang.html).

To enable the DSL you need to import `import in.ashwanthkumar.imgraph.types.DataConversions._` in your current context.

To find all lovers of Romeo

```

Query()

  .MATCH(("name" ~ "Romeo", "age" ~ 22)) --> LABEL("loves") RETURN ("name", "age")

```

Above query would

1. find the node that has "name"="Romeo" and "age" = 22

2. find the outgoing edges that says "loves"

3. return the "name" and "age" props of the resulting nodes

To match any of the multiple predicates, `|` can be used

```

Query()

  .MATCH(("name" ~ "Romeo", "age" ~ "21") | ("age" ~ 18, "name" ~ "Juliet")) <-- LABEL("loves") RETURN("name", "age")

```

Above query would

1. find the node that has `{"name": "Romeo", "age": 21}` or `{"age": 18, "name": "Juliet"}`

2. find the incoming edges that says "loves"

3. return the "name" and "age" props of the resulting nodes

To find more usages, check the [QueryTest.scala](https://github.com/ashwanthkumar/imgraph/blob/master/src/test/scala/in/ashwanthkumar/imgraph/query/QueryTest.scala).

*Query DSL is still WIP. Any kind of feedback is welcome.*

### Notes

- Doesn't support undirected graphs

- Following use cases will be supported

    - Monodic Aggregations

    - Graph Traversals

    - ID based GETs

    - Property Search

- Good to have features

    - [Spark](https://spark.apache.org/) Connector to support Spark as computation platform on the graph

    - [Hama](https://hama.apache.org/) Vertex Reader to run graph computations on Hama from imGraph 

    - Use [Blueprints](http://blueprints.tinkerpop.com/) for property graph model