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package org.apache.lucene.search.function;
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.apache.org/licenses/LICENSE-2.0
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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import org.apache.lucene.index.IndexReader;
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import org.apache.lucene.search.FieldCache;
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import java.io.IOException;
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* Holds all implementations of classes in the o.a.l.s.function package as a
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* back-compatibility test. It does not run any tests per-se, however if
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* someone adds a method to an interface or abstract method to an abstract
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* class, one of the implementations here will fail to compile and so we know
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* back-compat policy was violated.
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final class JustCompileSearchFunction {
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private static final String UNSUPPORTED_MSG = "unsupported: used for back-compat testing only !";
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static final class JustCompileDocValues extends DocValues {
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public float floatVal(int doc) {
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throw new UnsupportedOperationException(UNSUPPORTED_MSG);
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public String toString(int doc) {
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throw new UnsupportedOperationException(UNSUPPORTED_MSG);
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static final class JustCompileFieldCacheSource extends FieldCacheSource {
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public JustCompileFieldCacheSource(String field) {
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public boolean cachedFieldSourceEquals(FieldCacheSource other) {
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throw new UnsupportedOperationException(UNSUPPORTED_MSG);
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public int cachedFieldSourceHashCode() {
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throw new UnsupportedOperationException(UNSUPPORTED_MSG);
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public DocValues getCachedFieldValues(FieldCache cache, String field,
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IndexReader reader) throws IOException {
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throw new UnsupportedOperationException(UNSUPPORTED_MSG);
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static final class JustCompileValueSource extends ValueSource {
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public String description() {
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throw new UnsupportedOperationException(UNSUPPORTED_MSG);
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public boolean equals(Object o) {
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throw new UnsupportedOperationException(UNSUPPORTED_MSG);
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public DocValues getValues(IndexReader reader) throws IOException {
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throw new UnsupportedOperationException(UNSUPPORTED_MSG);
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public int hashCode() {
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throw new UnsupportedOperationException(UNSUPPORTED_MSG);