com.hazelcast.shaded.org.apache.calcite.runtime.PredicateImpl Maven / Gradle / Ivy
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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 com.hazelcast.shaded.org.apache.calcite.runtime;
import com.hazelcast.shaded.com.google.common.base.Predicate;
import com.hazelcast.shaded.org.checkerframework.checker.nullness.qual.Nullable;
/**
* Abstract implementation of {@link com.hazelcast.shaded.com.google.common.base.Predicate}.
*
* Derived class needs to implement the {@link #test} method.
*
*
Helps with the transition to {@code java.util.function.Predicate},
* which was introduced in JDK 1.8, and is required in Guava 21.0 and higher,
* but still works on JDK 1.7.
*
* @param the type of the input to the predicate
*
* @deprecated Now Calcite is Java 8 and higher, we recommend that you
* implement {@link java.util.function.Predicate} directly.
*/
public abstract class PredicateImpl implements Predicate {
@Override public final boolean apply(@Nullable T input) {
return test(input);
}
/** Overrides {@code java.util.function.Predicate#test} in JDK8 and higher. */
// Suppress ErrorProne's MissingOverride warning. The @Override annotation
// would be incorrect on Guava < 21 because Guava's interface Predicate does
// not implement Java's interface Predicate until Guava 21, and we need the
// code to compile on all versions.
@SuppressWarnings("MissingOverride")
public abstract boolean test(@Nullable T t);
}