org.elasticsearch.index.fielddata.SingletonSortedNumericDoubleValues Maven / Gradle / Ivy
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/*
* 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.util.Bits;
import org.apache.lucene.util.Bits.MatchAllBits;
/**
* Exposes multi-valued view over a single-valued instance.
*
* This can be used if you want to have one multi-valued implementation
* that works for single or multi-valued types.
*/
final class SingletonSortedNumericDoubleValues extends SortedNumericDoubleValues {
private final NumericDoubleValues in;
private final Bits docsWithField;
private double value;
private int count;
public SingletonSortedNumericDoubleValues(NumericDoubleValues in, Bits docsWithField) {
this.in = in;
this.docsWithField = docsWithField instanceof MatchAllBits ? null : docsWithField;
}
/** Return the wrapped {@link NumericDoubleValues} */
public NumericDoubleValues getNumericDoubleValues() {
return in;
}
/** Return the wrapped {@link Bits} */
public Bits getDocsWithField() {
return docsWithField;
}
@Override
public void setDocument(int doc) {
value = in.get(doc);
if (docsWithField != null && value == 0 && docsWithField.get(doc) == false) {
count = 0;
} else {
count = 1;
}
}
@Override
public double valueAt(int index) {
return value;
}
@Override
public int count() {
return count;
}
}