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https://issues.apache.org/jira/browse/RYA-298?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16121676#comment-16121676
 ] 

ASF GitHub Bot commented on RYA-298:
------------------------------------

Github user ejwhite922 commented on a diff in the pull request:

    https://github.com/apache/incubator-rya/pull/197#discussion_r132466881
  
    --- Diff: 
sail/src/test/java/org/apache/rya/rdftriplestore/inference/DomainRangeVisitorTest.java
 ---
    @@ -0,0 +1,140 @@
    +package org.apache.rya.rdftriplestore.inference;
    +/*
    + * Licensed to the Apache Software Foundation (ASF) under one
    + * or more contributor license agreements.  See the NOTICE file
    + * distributed with this work for additional information
    + * regarding copyright ownership.  The ASF licenses this file
    + * to you under the Apache License, Version 2.0 (the
    + * "License"); you may not use this file except in compliance
    + * with the License.  You may obtain a copy of the License at
    + *
    + *   http://www.apache.org/licenses/LICENSE-2.0
    + *
    + * Unless required by applicable law or agreed to in writing,
    + * software distributed under the License is distributed on an
    + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
    + * KIND, either express or implied.  See the License for the
    + * specific language governing permissions and limitations
    + * under the License.
    + */
    +
    +import static org.mockito.Mockito.mock;
    +import static org.mockito.Mockito.when;
    +
    +import java.util.HashSet;
    +import java.util.Set;
    +import java.util.Stack;
    +
    +import org.apache.rya.accumulo.AccumuloRdfConfiguration;
    +import org.apache.rya.rdftriplestore.utils.FixedStatementPattern;
    +import org.junit.Assert;
    +import org.junit.Test;
    +import org.openrdf.model.Resource;
    +import org.openrdf.model.Statement;
    +import org.openrdf.model.URI;
    +import org.openrdf.model.ValueFactory;
    +import org.openrdf.model.impl.ValueFactoryImpl;
    +import org.openrdf.model.vocabulary.RDF;
    +import org.openrdf.model.vocabulary.RDFS;
    +import org.openrdf.query.algebra.Join;
    +import org.openrdf.query.algebra.Projection;
    +import org.openrdf.query.algebra.ProjectionElem;
    +import org.openrdf.query.algebra.ProjectionElemList;
    +import org.openrdf.query.algebra.StatementPattern;
    +import org.openrdf.query.algebra.TupleExpr;
    +import org.openrdf.query.algebra.Union;
    +import org.openrdf.query.algebra.Var;
    +
    +public class DomainRangeVisitorTest {
    +    private final AccumuloRdfConfiguration conf = new 
AccumuloRdfConfiguration();
    +    private final ValueFactory vf = new ValueFactoryImpl();
    +    private final URI person = vf.createURI("lubm:Person");
    --- End diff --
    
    These URI's can be made static final


> Implement rdfs:domain inference
> -------------------------------
>
>                 Key: RYA-298
>                 URL: https://issues.apache.org/jira/browse/RYA-298
>             Project: Rya
>          Issue Type: Sub-task
>          Components: sail
>            Reporter: Jesse Hatfield
>            Assignee: Jesse Hatfield
>
> If a predicate has an *{{rdfs:domain}}* of some class, than the subject of 
> any triple including that predicate belongs to the class.
> If the ontology states that {{:advisor}} has the domain of {{:Person}}, then 
> the inference engine should rewrite queries of the form {{?x rdf:type 
> :Person}} to check for resources which have any {{:advisor}} (as well as any 
> specifically stated to have type {{:Person}} ).



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