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Posted to commits@lucene.apache.org by mi...@apache.org on 2017/07/05 14:53:45 UTC
lucene-solr:master: LUCENE-7899: add missing file
Repository: lucene-solr
Updated Branches:
refs/heads/master 6abff51ed -> 6e36ad7c5
LUCENE-7899: add missing file
Project: http://git-wip-us.apache.org/repos/asf/lucene-solr/repo
Commit: http://git-wip-us.apache.org/repos/asf/lucene-solr/commit/6e36ad7c
Tree: http://git-wip-us.apache.org/repos/asf/lucene-solr/tree/6e36ad7c
Diff: http://git-wip-us.apache.org/repos/asf/lucene-solr/diff/6e36ad7c
Branch: refs/heads/master
Commit: 6e36ad7c5d654030385156cd7c7e4845aeabb174
Parents: 6abff51
Author: Mike McCandless <mi...@apache.org>
Authored: Wed Jul 5 10:53:37 2017 -0400
Committer: Mike McCandless <mi...@apache.org>
Committed: Wed Jul 5 10:53:37 2017 -0400
----------------------------------------------------------------------
.../search/DocValuesFieldExistsQuery.java | 102 +++++++++++++++++++
1 file changed, 102 insertions(+)
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http://git-wip-us.apache.org/repos/asf/lucene-solr/blob/6e36ad7c/lucene/core/src/java/org/apache/lucene/search/DocValuesFieldExistsQuery.java
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diff --git a/lucene/core/src/java/org/apache/lucene/search/DocValuesFieldExistsQuery.java b/lucene/core/src/java/org/apache/lucene/search/DocValuesFieldExistsQuery.java
new file mode 100644
index 0000000..cbb5e04
--- /dev/null
+++ b/lucene/core/src/java/org/apache/lucene/search/DocValuesFieldExistsQuery.java
@@ -0,0 +1,102 @@
+/*
+ * 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.lucene.search;
+
+
+import java.io.IOException;
+import java.util.Objects;
+
+import org.apache.lucene.index.DocValuesType;
+import org.apache.lucene.index.FieldInfo;
+import org.apache.lucene.index.FieldInfos;
+import org.apache.lucene.index.LeafReader;
+import org.apache.lucene.index.LeafReaderContext;
+
+/**
+ * A {@link Query} that matches documents that have a value for a given field
+ * as reported by doc values iterators.
+ */
+public final class DocValuesFieldExistsQuery extends Query {
+
+ private final String field;
+
+ /** Create a query that will match that have a value for the given
+ * {@code field}. */
+ public DocValuesFieldExistsQuery(String field) {
+ this.field = Objects.requireNonNull(field);
+ }
+
+ public String getField() {
+ return field;
+ }
+
+ @Override
+ public boolean equals(Object other) {
+ return sameClassAs(other) &&
+ field.equals(((DocValuesFieldExistsQuery) other).field);
+ }
+
+ @Override
+ public int hashCode() {
+ return 31 * classHash() + field.hashCode();
+ }
+
+ @Override
+ public String toString(String field) {
+ return "DocValuesFieldExistsQuery [field=" + this.field + "]";
+ }
+
+ @Override
+ public Weight createWeight(IndexSearcher searcher, boolean needsScores, float boost) throws IOException {
+ return new ConstantScoreWeight(this, boost) {
+ @Override
+ public Scorer scorer(LeafReaderContext context) throws IOException {
+ FieldInfos fieldInfos = context.reader().getFieldInfos();
+ FieldInfo fieldInfo = fieldInfos.fieldInfo(field);
+ if (fieldInfo == null) {
+ return null;
+ }
+ DocValuesType dvType = fieldInfo.getDocValuesType();
+ LeafReader reader = context.reader();
+ DocIdSetIterator iterator;
+ switch(dvType) {
+ case NONE:
+ return null;
+ case NUMERIC:
+ iterator = reader.getNumericDocValues(field);
+ break;
+ case BINARY:
+ iterator = reader.getBinaryDocValues(field);
+ break;
+ case SORTED:
+ iterator = reader.getSortedDocValues(field);
+ break;
+ case SORTED_NUMERIC:
+ iterator = reader.getSortedNumericDocValues(field);
+ break;
+ case SORTED_SET:
+ iterator = reader.getSortedSetDocValues(field);
+ break;
+ default:
+ throw new AssertionError();
+ }
+
+ return new ConstantScoreScorer(this, score(), iterator);
+ }
+ };
+ }
+}