
org.opensearch.index.fielddata.NumericDoubleValues Maven / Gradle / Ivy
/*
* SPDX-License-Identifier: Apache-2.0
*
* The OpenSearch Contributors require contributions made to
* this file be licensed under the Apache-2.0 license or a
* compatible open source license.
*/
/*
* 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.
*/
/*
* Modifications Copyright OpenSearch Contributors. See
* GitHub history for details.
*/
package org.opensearch.index.fielddata;
import org.apache.lucene.index.NumericDocValues;
import org.apache.lucene.search.DoubleValues;
import org.opensearch.common.annotation.PublicApi;
import java.io.IOException;
/**
* A per-document numeric value.
*
* @opensearch.api
*/
@PublicApi(since = "1.0.0")
public abstract class NumericDoubleValues extends DoubleValues {
/** Sole constructor. (For invocation by subclass
* constructors, typically implicit.) */
protected NumericDoubleValues() {}
// TODO: this interaction with sort comparators is really ugly...
/** Returns numeric docvalues view of raw double bits */
public NumericDocValues getRawDoubleValues() {
return new AbstractNumericDocValues() {
private int docID = -1;
@Override
public boolean advanceExact(int target) throws IOException {
docID = target;
return NumericDoubleValues.this.advanceExact(target);
}
@Override
public long longValue() throws IOException {
return Double.doubleToRawLongBits(NumericDoubleValues.this.doubleValue());
}
@Override
public int docID() {
return docID;
}
@Override
public int advance(int target) throws IOException {
return NumericDoubleValues.this.advance(target);
}
};
}
// yes... this is doing what the previous code was doing...
/** Returns numeric docvalues view of raw float bits */
public NumericDocValues getRawFloatValues() {
return new AbstractNumericDocValues() {
private int docID = -1;
@Override
public boolean advanceExact(int target) throws IOException {
docID = target;
return NumericDoubleValues.this.advanceExact(target);
}
@Override
public long longValue() throws IOException {
return Float.floatToRawIntBits((float) NumericDoubleValues.this.doubleValue());
}
@Override
public int docID() {
return docID;
}
@Override
public int advance(int target) throws IOException {
return NumericDoubleValues.this.advance(target);
}
};
}
/**
* Advances to the first beyond the current whose document number is greater than or equal to
* target, and returns the document number itself. Exhausts the iterator and returns {@link
* org.apache.lucene.search.DocIdSetIterator#NO_MORE_DOCS} if target is greater than the highest document number in the set.
*
* This method is being used by {@link org.apache.lucene.search.comparators.NumericComparator.NumericLeafComparator} when point values optimization kicks
* in and is implemented by most numeric types.
*/
public int advance(int target) throws IOException {
throw new UnsupportedOperationException();
}
}
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