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OpenMAMDA is a high performance Market Data API written on top of OpenMAMA.

There is a newer version: 6.3.2

/* $Id$
 *
 * OpenMAMA: The open middleware agnostic messaging API
 * Copyright (C) 2012 NYSE Technologies, Inc.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
 * 02110-1301 USA
 */

package com.wombat.mamda;

import com.wombat.mama.MamaBoolean;

/**
 * The MamdaMultiParticipantHandler class is an interface that allows
 * a developer to be notified dynamically when new participant updates are
 * received on the underlying subscription.
 * This is useful for handling information such as NYSE,
 * AMEX and NASDAQ listed securities (including NQDS). Access to
 * consolidated information (i.e., best bid and offer and consolidated
 * trade info) is also available.
 *
 * Note that any actions to register per-participant or consolidated
 * listeners can be added up front (and this callback omitted or left
 * empty) if the participant IDs are known beforehand.
 */

public interface MamdaMultiParticipantHandler
{
    /**
     * Method invoked when the consolidated trade and BBO quote
     * information for the security has become available.  
     * This method is invoked only if there is BBO or consolidated trade
     * information available.
     */
    public void onConsolidatedCreate (
            MamdaSubscription             subscription,
            MamdaMultiParticipantManager  manager);

    /**
     * Method invoked when the trade and quote information for a
     * participant has become available for the security.  This
     * method
     * is invoked only if there is participant quote or trade
     * information available.  isPrimary is reserved for future use.
     */
    void onParticipantCreate (
            MamdaSubscription             subscription,
            MamdaMultiParticipantManager  manager,
            String                        particpantId,
            MamaBoolean                   isPrimary);
}