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DBMS > Apache Jena - TDB vs. Dgraph vs. EJDB vs. Hawkular Metrics

System Properties Comparison Apache Jena - TDB vs. Dgraph vs. EJDB vs. Hawkular Metrics

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Editorial information provided by DB-Engines
NameApache Jena - TDB  Xexclude from comparisonDgraph  Xexclude from comparisonEJDB  Xexclude from comparisonHawkular Metrics  Xexclude from comparison
DescriptionA RDF storage and query DBMS, shipped as an optional-use component of the Apache Jena frameworkDistributed and scalable native Graph DBMSEmbeddable document-store database library with JSON representation of queries (in MongoDB style)Hawkular metrics is the metric storage of the Red Hat sponsored Hawkular monitoring system. It is based on Cassandra.
Primary database modelRDF storeGraph DBMSDocument storeTime Series DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score3.02
Rank#102  Overall
#3  RDF stores
Score1.54
Rank#143  Overall
#11  Graph DBMS
Score0.10
Rank#314  Overall
#41  Document stores
Score0.02
Rank#340  Overall
#30  Time Series DBMS
Websitejena.apache.org/­documentation/­tdb/­index.htmldgraph.ioejdb.orgwww.hawkular.org
Technical documentationjena.apache.org/­documentation/­tdb/­index.htmldgraph.io/­docsgithub.com/­Softmotions/­ejdb/­blob/­master/­README.mdwww.hawkular.org/­hawkular-metrics/­docs/­user-guide
DeveloperApache Software Foundation infooriginally developed by HP LabsDgraph Labs, Inc.SoftmotionsCommunity supported by Red Hat
Initial release2000201620122014
Current release4.3.2, December 2021
License infoCommercial or Open SourceOpen Source infoApache License, Version 2.0Open Source infoApache 2.0Open Source infoGPLv2Open Source infoApache 2.0
Cloud-based only infoOnly available as a cloud servicenononono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageJavaGoCJava
Server operating systemsAll OS with a Java VMLinux
OS X
Windows
server-lessLinux
OS X
Windows
Data schemeyes infoRDF Schemasschema-freeschema-freeschema-free
Typing infopredefined data types such as float or dateyesyesyes infostring, integer, double, bool, date, object_idyes
XML support infoSome form of processing data in XML format, e.g. support for XML data structures, and/or support for XPath, XQuery or XSLT.nono
Secondary indexesyesyesnono
SQL infoSupport of SQLnononono
APIs and other access methodsFuseki infoREST-style SPARQL HTTP Interface
Jena RDF API
RIO infoRDF Input/Output
GraphQL query language
gRPC (using protocol buffers) API
HTTP API
in-process shared libraryHTTP REST
Supported programming languagesJavaC#
C++
Go
Java
JavaScript (Node.js)
PHP
Python
Ruby
Actionscript
C
C#
C++
Go
Java
JavaScript (Node.js)
Lua
Objective-C
Pike
Python
Ruby
Go
Java
Python
Ruby
Server-side scripts infoStored proceduresyesnonono
Triggersyes infovia event handlernonoyes infovia Hawkular Alerting
Partitioning methods infoMethods for storing different data on different nodesnoneyesnoneSharding infobased on Cassandra
Replication methods infoMethods for redundantly storing data on multiple nodesnoneSynchronous replication via Raftnoneselectable replication factor infobased on Cassandra
MapReduce infoOffers an API for user-defined Map/Reduce methodsnononono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyEventual Consistency infobased on Cassandra
Immediate Consistency infobased on Cassandra
Foreign keys infoReferential integritynono infotypically not needed, however similar functionality with collection joins possibleno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACID infoTDB TransactionsACIDnono
Concurrency infoSupport for concurrent manipulation of datayesyesyes infoRead/Write Lockingyes
Durability infoSupport for making data persistentyesyesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.no
User concepts infoAccess controlAccess control via Jena Securityno infoPlanned for future releasesnono

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More resources
Apache Jena - TDBDgraphEJDBHawkular Metrics
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