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https://issues.apache.org/jira/browse/RYA-292?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16129409#comment-16129409
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ASF GitHub Bot commented on RYA-292:
------------------------------------
Github user ejwhite922 commented on a diff in the pull request:
https://github.com/apache/incubator-rya/pull/206#discussion_r133566456
--- Diff:
common/rya.api/src/main/java/org/apache/rya/api/persist/utils/RyaDaoStatementIterHandler.java
---
@@ -0,0 +1,35 @@
+/*
+ * 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.
+ */
+package org.apache.rya.api.persist.utils;
+
+import org.apache.rya.api.persist.RyaDAO;
+import org.openrdf.model.Statement;
+
+/**
+ * Handles the statements returned from a {@link RyaDAO} query iterator.
+ */
+public abstract class RyaDaoStatementIterHandler {
--- End diff --
Done
> Implement owl:intersectionOf inference
> --------------------------------------
>
> Key: RYA-292
> URL: https://issues.apache.org/jira/browse/RYA-292
> Project: Rya
> Issue Type: Sub-task
> Components: sail
> Reporter: Jesse Hatfield
> Assignee: Eric White
>
> An *{{owl:intersectionOf}}* expression defines the set of resources who
> belong to all of a particular set of classes.
> A basic implementation, if the ontology states that {{:Mother}} is the
> intersection of {{:Parent}} and {{:Woman}}, should cause the inference engine
> to:
> 1. Rewrite query patterns {{?x rdf:type :Mother}} (the intersection type) to
> check for resources that have both types {{:Parent}} and {{:Woman}} (as well
> as check for resources that are explicitly stated to be {{:Mother}} s)
> 2. Rewrite query patterns {{?y rdf:type :Parent}} (one of the intersecting
> sets) to check for resources that are stated to be either {{:Mother}} or
> {{:Parent}} , since belonging to the intersection type implies membership in
> the component types. (Equivalent logic applies to {{Woman}} )
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