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Properties Settings

 

OntoBroker settings can be changed in OntoConfig.prp file at the OntoBroker home directory.

Property

Values

Default Value

OntologyLanguage

ObjectLogic, RDF, OWL

ObjectLogic

Storage

RAM.choose, RAM.AVL.Packed, H2

RAM.choose

EvaluationMethod

choose, DynamicFiltering, DynamicFiltering2, BottomUp, MagicSet, DisjunctiveMagicSet

choose

BottomUpEvaluator

choose, BottomUp2, DBBottomUp, BU3

choose

DynamicFiltering.UnfoldRules

on, off

off

Connector.Cache.Lifetime

query,unlimited.

query - tuple cache is removed after the query execution. This is the default value for this option.

unlimited - tuple cache is not removed after the query execution and can be used for the next query. This option is better for performance and should always be used if a database won't be updated frequently. Cache update should be done manually (see "Clear connector cache command").

The option affects all connectors.

unlimited

SPARQL Endpoint

SparqlEndpoint = on

off

Extensions.Directory

To specify multiple extensions directory just use the OntoConfig parameter

Extensions.Directory as usual and separate the directories by comma.

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