genericpoolservice.java

Java Database connection pool

/*
 *  PoolMan Java Object Pooling and Caching Library
 *  Copyright (C) 1999-2001 The Code Studio
 *
 *  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 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.
 *
 *  The full license is located at the root of this distribution
 *  in the LICENSE file.
 */
package com.codestudio.management;


import com.codestudio.util.GenericPool;
import com.codestudio.util.GenericPoolManager;
import com.codestudio.util.GenericPoolMetaData;
import com.codestudio.util.ObjectPool;


public class GenericPoolService extends ObjectPoolService implements GenericPoolServiceMBean {

    protected GenericPoolMetaData genericMetadata;

    public GenericPoolService() {
        this.metadata = new GenericPoolMetaData();
        this.genericMetadata = (GenericPoolMetaData) this.metadata;
    }

    public void start() throws Exception {

        // Create the pool;
        GenericPool pool = new GenericPool(this.genericMetadata);

        // Put pool in Generic Pool Manager
        GenericPoolManager.getInstance().addPool(getName(), pool);

        // flip the switch
        this.available = true;

    }

    public void stop() throws Exception {

        // flip the switch
        this.available = false;

        // destroy the pool
        GenericPool pool = (GenericPool) GenericPoolManager.getInstance().getPool(getName());
        GenericPoolManager.getInstance().removePool(getName());
        pool.closeAllResources();
        pool = null;
    }

    public String getObjectType() {
        return this.genericMetadata.getObjectType();
    }

    public void setObjectType(String s) {
        this.genericMetadata.setObjectType(s);
    }

    public int getNumCheckedInObjects() {
        ObjectPool pool = GenericPoolManager.getInstance().getPool(getName());
        return pool.numCheckedInObjects();
    }

    public int getNumCheckedOutObjects() {
        ObjectPool pool = GenericPoolManager.getInstance().getPool(getName());
        return pool.numCheckedOutObjects();
    }

    public int getNumTotalObjects() {
        ObjectPool pool = GenericPoolManager.getInstance().getPool(getName());
        return pool.numTotalObjects();
    }

}