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Java JDBC 4.2 (JRE 8+) driver for YugaByte SQL database
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/*
* Copyright (c) 2023, PostgreSQL Global Development Group
* See the LICENSE file in the project root for more information.
*/
/* changes were made to move it into the org.postgresql.util package
*
* Copyright 2022 Juan Lopes
*
* Licensed 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.postgresql.util;
import org.checkerframework.checker.nullness.qual.Nullable;
import java.lang.ref.PhantomReference;
import java.lang.ref.ReferenceQueue;
import java.time.Duration;
import java.util.concurrent.ThreadFactory;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
* LazyCleaner is a utility class that allows to register objects for deferred cleanup.
* Note: this is a driver-internal class
*/
public class LazyCleaner {
private static final Logger LOGGER = Logger.getLogger(LazyCleaner.class.getName());
private static final LazyCleaner instance =
new LazyCleaner(
Duration.ofMillis(Long.getLong("pgjdbc.config.cleanup.thread.ttl", 30000)),
"PostgreSQL-JDBC-Cleaner"
);
public interface Cleanable {
void clean() throws T;
}
public interface CleaningAction {
void onClean(boolean leak) throws T;
}
private final ReferenceQueue
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