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/*
 * Copyright (c) 1997, 2018 Oracle and/or its affiliates. All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v. 2.0, which is available at
 * http://www.eclipse.org/legal/epl-2.0.
 *
 * This Source Code may also be made available under the following Secondary
 * Licenses when the conditions for such availability set forth in the
 * Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
 * version 2 with the GNU Classpath Exception, which is available at
 * https://www.gnu.org/software/classpath/license.html.
 *
 * SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
 */

package org.glassfish.j2ee.statistics;

/**
 * Specifies the statistics provided by a JCA Connection Pool
 *
 */
public interface JCAConnectionPoolStats extends JCAConnectionStats {
    /**
     * The number of connections closed
     * @return CountStatistic
     */
    CountStatistic getCloseCount();

    /**
     * The number of connections created
     * @return CountStatistic
     */
    CountStatistic getCreateCount();

    /**
     * The number of free connections in the pool
     * @return BoundedRangeStatistic
     */
    BoundedRangeStatistic getFreePoolSize();

    /**
     * The size of the connection pool
     * @return BoundedRangeStatistic
     */
    BoundedRangeStatistic getPoolSize();

    /**
     * The number of threads waiting for a connection
     * @return BoundedRangeStatistic
     */
    RangeStatistic getWaitingThreadCount();
}