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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.search.suggest;
import org.elasticsearch.common.io.stream.StreamInput;
import org.elasticsearch.common.io.stream.StreamOutput;
import org.elasticsearch.common.io.stream.Writeable;
import java.io.IOException;
import java.util.Locale;
import java.util.Objects;
/**
* An enum representing the valid sorting options
*/
public enum SortBy implements Writeable {
/** Sort should first be based on score, then document frequency and then the term itself. */
SCORE,
/** Sort should first be based on document frequency, then score and then the term itself. */
FREQUENCY;
@Override
public void writeTo(final StreamOutput out) throws IOException {
out.writeEnum(this);
}
public static SortBy readFromStream(final StreamInput in) throws IOException {
return in.readEnum(SortBy.class);
}
public static SortBy resolve(final String str) {
Objects.requireNonNull(str, "Input string is null");
return valueOf(str.toUpperCase(Locale.ROOT));
}
}
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