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* Licensed to the Apache Software Foundation (ASF) under one
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* 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
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*/
package org.apache.cassandra.utils.concurrent;

A simple extension of AutoCloseable, that represents a resource that can be utilised in multiple locations,
each managing their own closure of the resource, so that when the last such instance is closed all are.
/**
 * A simple extension of AutoCloseable, that represents a resource that can be utilised in multiple locations,
 * each managing their own closure of the resource, so that when the last such instance is closed all are.
 *
 */
public interface SharedCloseable extends AutoCloseable
{
    
Returns:
a new instance of the object representing the same state and backed by the same underlying resources.
Coordinates with the original (and other instances) when the underlying resource should be closed.
Throws an exception if the shared resource has already been closed./**
     * @return a new instance of the object representing the same state and backed by the same underlying resources.
     * Coordinates with the original (and other instances) when the underlying resource should be closed.
     * Throws an exception if the shared resource has already been closed.
     */
    public SharedCloseable sharedCopy();
    public Throwable close(Throwable accumulate);

    public void addTo(Ref.IdentityCollection identities);
}