https://github.com/tanmaykm/foundationdb.jl

FoundationDB client in Julia
https://github.com/tanmaykm/foundationdb.jl

foundationdb foundationdb-client julia julialang

Last synced: about 1 month ago
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FoundationDB client in Julia

• Host: GitHub
• URL: https://github.com/tanmaykm/foundationdb.jl
• Owner: tanmaykm
• License: other
• Created: 2018-05-02T13:15:33.000Z (over 6 years ago)
• Default Branch: master
• Last Pushed: 2019-01-10T03:26:44.000Z (almost 6 years ago)
• Last Synced: 2024-10-14T16:43:47.393Z (about 1 month ago)
• Topics: foundationdb, foundationdb-client, julia, julialang
• Language: Julia
• Size: 54.7 KB
• Stars: 4
• Watchers: 3
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE.md

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README

        
# FoundationDB Julia Client

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

[![Coverage Status](https://coveralls.io/repos/tanmaykm/FoundationDB.jl/badge.svg?branch=master&service=github)](https://coveralls.io/github/tanmaykm/FoundationDB.jl?branch=master)

[![codecov.io](http://codecov.io/github/tanmaykm/FoundationDB.jl/coverage.svg?branch=master)](http://codecov.io/github/tanmaykm/FoundationDB.jl?branch=master)

The current implementation covers all of the C-APIs, and provides an easy to use Julia API layer over it for simple key-value pairs.

The Julia APIs are quite easy to follow, with this example:

```

using FoundationDB

open(FDBCluster()) do cluster                        # Read cluster configuration

    open(FDBDatabase(cluster)) do db                 # Open the database

        key = UInt8[0,1,2]                           # This is a key, and ...

        val = UInt8[9, 9, 9]                         # this is a value. Both are byte arrays.

        open(FDBTransaction(db)) do tran             # Start a transaction

            @test clearkey(tran, key) == nothing     # Delete a key if present

            @test getval(tran, key) == nothing       # Get value for a key (nothing if not present)

            @test setval(tran, key, val) == nothing  # Set value for a key

            @test getval(tran, key) == val           # We get the value, once it has been set

            @test commit(tran)                       # Commit changes we made in our snapshot

            @test_throws FDBError commit(tran)       # We can only commit once.

        end

        open(FDBTransaction(db)) do tran             # Open a new transaction 

            @test clearkey(tran, key) == nothing     # Delete a key

            @test getval(tran, key) == nothing

        end                                          # Transactions are auto-committed by default!

                                                     # And also retried automatically when possible

        open(FDBTransaction(db)) do tran             # Need a transaction even for read operation

            @test getval(tran, key) == nothing

        end                                          # Reads don't have to be committed

    end

end

```

Note: The Julia implementation makes use of Julia threading APIs. Make sure you have enabled threading and have at least two threads configured for Julia. E.g.:

```

$> JULIA_NUM_THREADS=2

$> export JULIA_NUM_THREADS

$> julia -e 'using Pkg; Pkg.test("FoundationDB")'

```