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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.tomcat.dbcp.pool2.impl;
import java.io.PrintWriter;
/**
* CallStack strategy using no-op implementations of all functionality. Can be used by default when abandoned object
* logging is disabled.
*
* @since 2.5
*/
public class NoOpCallStack implements CallStack {
/**
* Singleton instance.
*/
public static final CallStack INSTANCE = new NoOpCallStack();
/**
* Constructs the singleton instance.
*/
private NoOpCallStack() {
}
@Override
public void clear() {
// no-op
}
@Override
public void fillInStackTrace() {
// no-op
}
@Override
public boolean printStackTrace(final PrintWriter writer) {
return false;
}
}
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