Examples of org.apache.commons.pool.PoolableObjectFactory

org.apache.commons.pool.PoolableObjectFactory
An interface defining life-cycle methods for instances to be used in an {@link ObjectPool ObjectPool}.
By contract, when an {@link ObjectPool ObjectPool}delegates to a PoolableObjectFactory,
1. {@link #makeObject makeObject} is called whenever a new instance is needed.
2. {@link #activateObject activateObject} is invoked on every instance before it is returned from the pool.
3. {@link #passivateObject passivateObject} is invoked on every instance when it is returned to the pool.
4. {@link #destroyObject destroyObject} is invoked on every instance when it is being "dropped" from the pool (whether due to the response from {@link #validateObject validateObject}, or for reasons specific to the pool implementation.)
5. {@link #validateObject validateObject} is invoked in an implementation-specific fashion to determine if an instance is still valid to be returned by the pool. It will only be invoked on an {@link #activateObject "activated"}instance.
@author Rodney Waldhoff @version $Revision: 1.6 $ $Date: 2003/10/09 21:45:56 $ @see ObjectPool

    GenericObjectPool objectPool = new GenericObjectPool();
    objectPool.setTestOnBorrow(false);
    objectPool.setTestOnReturn(false);
    objectPool.setTestWhileIdle(true);
    objectPool.setTimeBetweenEvictionRunsMillis(60 * 1000L);
    PoolableObjectFactory factory =
            new PoolableConnectionFactory(connectionFactory, objectPool, null, "SELECT 1", false, false);
    objectPool.setFactory(factory);
    delegate = new PoolingDataSource(objectPool);
  }

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                String nodeRootPath = rootPath+"/"+name;
                beanClassNodeRootPaths.put(beanClass, nodeRootPath);
            }
            
            // create JCR credentials session pool
            PoolableObjectFactory sessionFactory = new BasePoolableObjectFactory()
            {
                /* (non-Javadoc)
                 * @see org.apache.commons.pool.BasePoolableObjectFactory#passivateObject(java.lang.Object)
                 */
                public void passivateObject(Object obj) throws Exception

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     * Override this method to implement your on {@link org.apache.commons.pool.ObjectPool}.
     */
    public ObjectPool createConnectionPool(JdbcConnectionDescriptor jcd)
    {
        if (log.isDebugEnabled()) log.debug("createPool was called");
        PoolableObjectFactory pof = new ConPoolFactory(this, jcd);
        GenericObjectPool.Config conf = jcd.getConnectionPoolDescriptor().getObjectPoolConfig();
        return (ObjectPool)new GenericObjectPool(pof, conf);
    }

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                String nodeRootPath = rootPath+"/"+name;
                beanClassNodeRootPaths.put(beanClass, nodeRootPath);
            }
            
            // create JCR credentials session pool
            PoolableObjectFactory sessionFactory = new BasePoolableObjectFactory()
            {
                /* (non-Javadoc)
                 * @see org.apache.commons.pool.BasePoolableObjectFactory#passivateObject(java.lang.Object)
                 */
                public void passivateObject(Object obj) throws Exception

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        return new TestSuite(TestSoftReferenceObjectPool.class);
    }


    protected ObjectPool makeEmptyPool(int cap) {
        return new SoftReferenceObjectPool(
            new PoolableObjectFactory()  {
                int counter = 0;
                public Object makeObject() { return String.valueOf(counter++); }
                public void destroyObject(Object obj) { }
                public boolean validateObject(Object obj) { return true; }
                public void activateObject(Object obj) { }

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    public void testBorrowWithSometimesInvalidObjects() throws Exception {
        ObjectPool pool = new StackObjectPool(20);
        pool.setFactory(
            new PoolableObjectFactory() {
                // factory makes Integer objects
                int counter = 0;
                public Object makeObject() { return new Integer(counter++); }
                public void destroyObject(Object obj) { }
                public boolean validateObject(Object obj) {

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    private final List destroyed = new ArrayList();
    public void testReturnObjectDiscardOrder() throws Exception {
        // setup
        // We need a factory that tracks what was discarded.
        PoolableObjectFactory pof = new PoolableObjectFactory() {
            int i = 0;
            public Object makeObject() throws Exception {
                return new Integer(i++);
            }

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                String nodeRootPath = rootPath+"/"+name;
                beanClassNodeRootPaths.put(beanClass, nodeRootPath);
            }
            
            // create JCR credentials session pool
            PoolableObjectFactory sessionFactory = new BasePoolableObjectFactory()
            {
                /* (non-Javadoc)
                 * @see org.apache.commons.pool.BasePoolableObjectFactory#passivateObject(java.lang.Object)
                 */
                public void passivateObject(Object obj) throws Exception

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     * Override this method to implement your on {@link org.apache.commons.pool.ObjectPool}.
     */
    public ObjectPool createConnectionPool(JdbcConnectionDescriptor jcd)
    {
        if (log.isDebugEnabled()) log.debug("createPool was called");
        PoolableObjectFactory pof = new ConPoolFactory(this, jcd);
        GenericObjectPool.Config conf = jcd.getConnectionPoolDescriptor().getObjectPoolConfig();
        ObjectPool op = new GenericObjectPool(pof, conf);
        return op;
    }

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  public HTableInterface getTable(String tableName) {
    GenericObjectPool pool = this.tablePools.get(tableName);
    
    if(pool == null){
      // lazy initialization of pool
      PoolableObjectFactory factory = new SolbaseHTableInterfaceFactory(config, tableName);
      pool = new GenericObjectPool(factory, this.maxActive);
    }
    try {
      HTableInterface table = (HTableInterface) pool.borrowObject();
      return table;

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