Class VerySimpleRdfsBackwardsChainingConnection
java.lang.Object
org.eclipse.rdf4j.sail.helpers.SailConnectionWrapper
org.eclipse.rdf4j.sail.shacl.wrapper.data.VerySimpleRdfsBackwardsChainingConnection
- All Implemented Interfaces:
AutoCloseable
,FederatedServiceResolverClient
,ThreadSafetyAware
,SailConnection
Very simple RDFS backwardschaining connection that supports type inference on hasStatement and getStatement. It does
not support inference for SPARQL queries.
-
Constructor Summary
ConstructorDescriptionVerySimpleRdfsBackwardsChainingConnection
(SailConnection wrappedCon, RdfsSubClassOfReasoner rdfsSubClassOfReasoner) -
Method Summary
Modifier and TypeMethodDescriptionCloseableIteration
<? extends Statement> getStatements
(Resource subj, IRI pred, Value obj, boolean includeInferred, Resource... contexts) Gets all statements from the specified contexts that have a specific subject, predicate and/or object.boolean
hasStatement
(Resource subj, IRI pred, Value obj, boolean includeInferred, Resource... contexts) Determines if the store contains any statements from the specified contexts that have a specific subject, predicate and/or object.Methods inherited from class org.eclipse.rdf4j.sail.helpers.SailConnectionWrapper
addStatement, addStatement, begin, begin, clear, clearNamespaces, close, commit, endUpdate, evaluate, explain, flush, getComparator, getContextIDs, getFederatedServiceResolver, getNamespace, getNamespaces, getStatements, getSupportedOrders, getWrappedConnection, isActive, isOpen, prepare, prepareQuery, removeNamespace, removeStatement, removeStatements, rollback, setFederatedServiceResolver, setNamespace, setTransactionSettings, size, size, startUpdate, supportsConcurrentReads
-
Constructor Details
-
VerySimpleRdfsBackwardsChainingConnection
public VerySimpleRdfsBackwardsChainingConnection(SailConnection wrappedCon, RdfsSubClassOfReasoner rdfsSubClassOfReasoner)
-
-
Method Details
-
hasStatement
public boolean hasStatement(Resource subj, IRI pred, Value obj, boolean includeInferred, Resource... contexts) throws SailException Description copied from interface:SailConnection
Determines if the store contains any statements from the specified contexts that have a specific subject, predicate and/or object. All three parameters may be null to indicate wildcards. The includeInferred parameter can be used to control which statements are checked: all statements or only the statements that have been added explicitly.- Specified by:
hasStatement
in interfaceSailConnection
- Overrides:
hasStatement
in classSailConnectionWrapper
- Parameters:
subj
- A Resource specifying the subject, or null for a wildcard.pred
- An IRI specifying the predicate, or null for a wildcard.obj
- A Value specifying the object, or null for a wildcard.includeInferred
- if false, no inferred statements are returned; if true, inferred statements are returned if availablecontexts
- The context(s) to get the data from. Note that this parameter is a vararg and as such is optional. If no contexts are specified the method operates on the entire repository. A null value can be used to match context-less statements.- Returns:
true
iff the store contains any statements matching the supplied criteria,false
otherwise.- Throws:
SailException
- If the Sail object encountered an error or unexpected situation internally.
-
getStatements
public CloseableIteration<? extends Statement> getStatements(Resource subj, IRI pred, Value obj, boolean includeInferred, Resource... contexts) throws SailException Description copied from interface:SailConnection
Gets all statements from the specified contexts that have a specific subject, predicate and/or object. All three parameters may be null to indicate wildcards. The includeInferred parameter can be used to control which statements are fetched: all statements or only the statements that have been added explicitly.- Specified by:
getStatements
in interfaceSailConnection
- Overrides:
getStatements
in classSailConnectionWrapper
- Parameters:
subj
- A Resource specifying the subject, or null for a wildcard.pred
- A URI specifying the predicate, or null for a wildcard.obj
- A Value specifying the object, or null for a wildcard.includeInferred
- if false, no inferred statements are returned; if true, inferred statements are returned if availablecontexts
- The context(s) to get the data from. Note that this parameter is a vararg and as such is optional. If no contexts are specified the method operates on the entire repository. A null value can be used to match context-less statements.- Returns:
- The statements matching the specified pattern.
- Throws:
SailException
- If the Sail object encountered an error or unexpected situation internally.
-