1 files changed, 55 insertions, 0 deletions
diff --git a/core/src/main/java/org/elasticsearch/index/fielddata/AbstractSortedNumericDocValues.java b/core/src/main/java/org/elasticsearch/index/fielddata/AbstractSortedNumericDocValues.java
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index 0000000000..c7f7814779
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+++ b/core/src/main/java/org/elasticsearch/index/fielddata/AbstractSortedNumericDocValues.java
@@ -0,0 +1,55 @@
+/*
+ * Licensed to Elasticsearch under one or more contributor
+ * license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright
+ * ownership. Elasticsearch 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.elasticsearch.index.fielddata;
+
+import org.apache.lucene.index.SortedNumericDocValues;
+import org.apache.lucene.search.DocIdSetIterator;
+
+import java.io.IOException;
+
+/**
+ * Base implementation that throws an {@link IOException} for the
+ * {@link DocIdSetIterator} APIs. This impl is safe to use for sorting and
+ * aggregations, which only use {@link #advanceExact(int)} and
+ * {@link #docValueCount()} and {@link #nextValue()}.
+ */
+public abstract class AbstractSortedNumericDocValues extends SortedNumericDocValues {
+
+    @Override
+    public int docID() {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public int nextDoc() throws IOException {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public int advance(int target) throws IOException {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public long cost() {
+        throw new UnsupportedOperationException();
+    }
+
+}