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Calcite APIs for LINQ (Language-Integrated Query) in Java

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/*
 * 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.calcite.linq4j.function;

import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;

import static java.lang.annotation.ElementType.CONSTRUCTOR;
import static java.lang.annotation.ElementType.FIELD;
import static java.lang.annotation.ElementType.METHOD;
import static java.lang.annotation.ElementType.PACKAGE;
import static java.lang.annotation.ElementType.TYPE;

/**
 * Annotation that indicates that a class, interface, field or method
 * is experimental, not part of the public API, and subject to change
 * or removal.
 *
 * And yes, it is flagged experimental. We may move it elsewhere in future,
 * when we re-think the maturity model.
 */
@Target({PACKAGE, TYPE, FIELD, METHOD, CONSTRUCTOR })
@Retention(RetentionPolicy.SOURCE)
@Experimental
public @interface Experimental {
}

// End Experimental.java