Class DirectTypeHierarchyInferencer
- java.lang.Object
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- org.eclipse.rdf4j.sail.helpers.SailWrapper
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- org.eclipse.rdf4j.sail.helpers.NotifyingSailWrapper
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- org.eclipse.rdf4j.sail.inferencer.fc.DirectTypeHierarchyInferencer
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- All Implemented Interfaces:
FederatedServiceResolverClient,NotifyingSail,Sail,StackableSail
public class DirectTypeHierarchyInferencer extends NotifyingSailWrapper
A forward-chaining inferencer that infers the direct-type hierarchy relationssesame:directSubClassOf,sesame:directSubPropertyOfandsesame:directType.The semantics of this inferencer are defined as follows:
Class A is a direct subclass of B iff: 1. A is a subclass of B and; 2. A and B are not equa and; 3. there is no class C (unequal A and B) such that A is a subclass of C and C of B. Property P is a direct subproperty of Q iff: 1. P is a subproperty of Q and; 2. P and Q are not equal and; 3. there is no property R (unequal P and Q) such that P is a subproperty of R and R of Q. Resource I is of direct type T iff: 1. I is of type T and 2. There is no class U (unequal T) such that: a. U is a subclass of T and; b. I is of type U.
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Constructor Summary
Constructors Constructor Description DirectTypeHierarchyInferencer()DirectTypeHierarchyInferencer(NotifyingSail baseSail)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description InferencerConnectiongetConnection()Opens a connection on the Sail which can be used to query and update data.voidinit()Initializes the Sail.-
Methods inherited from class org.eclipse.rdf4j.sail.helpers.NotifyingSailWrapper
addSailChangedListener, getBaseSail, removeSailChangedListener, setBaseSail
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Methods inherited from class org.eclipse.rdf4j.sail.helpers.SailWrapper
getCollectionFactory, getDataDir, getDefaultIsolationLevel, getFederatedServiceResolver, getSupportedIsolationLevels, getValueFactory, isWritable, setDataDir, setFederatedServiceResolver, shutDown, verifyBaseSailSet
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Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
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Methods inherited from interface org.eclipse.rdf4j.sail.Sail
getCollectionFactory, getDataDir, getDefaultIsolationLevel, getSupportedIsolationLevels, getValueFactory, isWritable, setDataDir, shutDown
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Constructor Detail
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DirectTypeHierarchyInferencer
public DirectTypeHierarchyInferencer()
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DirectTypeHierarchyInferencer
public DirectTypeHierarchyInferencer(NotifyingSail baseSail)
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Method Detail
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getConnection
public InferencerConnection getConnection() throws SailException
Description copied from interface:SailOpens a connection on the Sail which can be used to query and update data. Depending on how the implementation handles concurrent access, a call to this method might block when there is another open connection on this Sail.- Specified by:
getConnectionin interfaceNotifyingSail- Specified by:
getConnectionin interfaceSail- Overrides:
getConnectionin classNotifyingSailWrapper- Throws:
SailException- If no transaction could be started, for example because the Sail is not writable.
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init
public void init() throws SailExceptionDescription copied from interface:SailInitializes the Sail. Care should be taken that required initialization parameters have been set before this method is called. Please consult the specific Sail implementation for information about the relevant parameters.- Specified by:
initin interfaceSail- Overrides:
initin classSailWrapper- Throws:
SailException- If the Sail could not be initialized.
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