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AMPS Java client by 60East Technologies, Inc.

There is a newer version: 5.3.4.0

////////////////////////////////////////////////////////////////////////////
//
// Copyright (c) 2010-2022 60East Technologies Inc., All Rights Reserved.
//
// This computer software is owned by 60East Technologies Inc. and is
// protected by U.S. copyright laws and other laws and by international
// treaties.  This computer software is furnished by 60East Technologies
// Inc. pursuant to a written license agreement and may be used, copied,
// transmitted, and stored only in accordance with the terms of such
// license agreement and with the inclusion of the above copyright notice.
// This computer software or any other copies thereof may not be provided
// or otherwise made available to any other person.
//
// U.S. Government Restricted Rights.  This computer software: (a) was
// developed at private expense and is in all respects the proprietary
// information of 60East Technologies Inc.; (b) was not developed with
// government funds; (c) is a trade secret of 60East Technologies Inc.
// for all purposes of the Freedom of Information Act; and (d) is a
// commercial item and thus, pursuant to Section 12.212 of the Federal
// Acquisition Regulations (FAR) and DFAR Supplement Section 227.7202,
// Government's use, duplication or disclosure of the computer software
// is subject to the restrictions set forth by 60East Technologies Inc..
//
////////////////////////////////////////////////////////////////////////////

package com.crankuptheamps.client;

/**
 * Interface used to indicate whether a Store implementation is allowed to
 * grow (or shrink) to the requested size. If the request to resize is
 * denied, a Store implementation may fail the operation that resulted in
 * the request to grow by throwing an exception.
 */
public interface PublishStoreResizeHandler
{
    /**
     * Called by the {@link Store} when it wants to attempt a resize. Rather
     * than allow a resize request to grow the store, and implementation
     * could choose to flush the store (to allow space to be freed up)
     * at the expense of publishing performance. If the store's unpersisted
     * count doesn't decrease after a flush times out, it could indicate
     * the client is disconnected or a server-side issue such as a
     * synchronous replication destination is down.
     *
     * @param store The store sending the resize request.
     * @param size The new size the store would like to resize to.
     * @return A boolean indicating whether the Store is allowed to resize or not.
     */
    public boolean invoke(Store store, long size);
}