[
https://issues.apache.org/jira/browse/RYA-377?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16317144#comment-16317144
]
ASF GitHub Bot commented on RYA-377:
------------------------------------
Github user kchilton2 commented on a diff in the pull request:
https://github.com/apache/incubator-rya/pull/257#discussion_r160264336
--- Diff:
common/rya.api.function/src/main/java/org/apache/rya/api/function/aggregation/CountFunction.java
---
@@ -0,0 +1,61 @@
+/*
+ * 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.function.aggregation;
+
+import static com.google.common.base.Preconditions.checkArgument;
+
+import java.math.BigInteger;
+
+import org.apache.rya.api.model.VisibilityBindingSet;
+import org.openrdf.model.Literal;
+import org.openrdf.model.impl.IntegerLiteralImpl;
+import org.openrdf.query.impl.MapBindingSet;
+
+import edu.umd.cs.findbugs.annotations.DefaultAnnotation;
+import edu.umd.cs.findbugs.annotations.NonNull;
+
+/**
+ * Increments the {@link AggregationState}'s count if the child Binding
Set contains the binding name
+ * that is being counted by the {@link AggregationElement}.
+ */
+@DefaultAnnotation(NonNull.class)
+public final class CountFunction implements AggregationFunction {
+ @Override
+ public void update(final AggregationElement aggregation, final
AggregationState state, final VisibilityBindingSet childBindingSet) {
+ checkArgument(aggregation.getAggregationType() ==
AggregationType.COUNT, "The CountFunction only accepts COUNT
AggregationElements.");
--- End diff --
Done.
> Implement single node kafka streams incremental SPARQL processor
> ----------------------------------------------------------------
>
> Key: RYA-377
> URL: https://issues.apache.org/jira/browse/RYA-377
> Project: Rya
> Issue Type: New Feature
> Reporter: Andrew Smith
> Assignee: Kevin Chilton
>
--
This message was sent by Atlassian JIRA
(v6.4.14#64029)
