Examples of org.apache.tomcat.dbcp.pool2.ObjectPool

org.apache.tomcat.dbcp.pool2.impl.AbandonedConfig
e the object... } catch(Exception e) { // invalidate the object pool.invalidateObject(obj); // do not return the object to the pool twice obj = null; } finally { // make sure the object is returned to the pool if(null != obj) { pool.returnObject(obj); } } } catch(Exception e) { // failed to borrow an object }
See {@link BaseObjectPool} for a simple base implementation. @param < T> Type of element pooled in this pool. @see PooledObjectFactory @see KeyedObjectPool @see BaseObjectPool @since 2.0

            if (p == null) {
                return;  // Object was abandoned and removed
            } else {
                // Make sure object is not being reclaimed
                synchronized(p) {
                    final PooledObjectState state = p.getState();
                    if (state != PooledObjectState.ALLOCATED) {
                        throw new IllegalStateException(
                                "Object has already been returned to this pool or is invalid");
                    } else {
                        p.markReturning(); // Keep from being marked abandoned

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            if (p == null) {
                return;  // Object was abandoned and removed
            } else {
                // Make sure object is not being reclaimed
                synchronized(p) {
                    final PooledObjectState state = p.getState();
                    if (state != PooledObjectState.ALLOCATED) {
                        throw new IllegalStateException(
                                "Object has already been returned to this pool or is invalid");
                    } else {
                        p.markReturning(); // Keep from being marked abandoned

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            if (p == null) {
                return;  // Object was abandoned and removed
            } else {
                // Make sure object is not being reclaimed
                synchronized(p) {
                    final PooledObjectState state = p.getState();
                    if (state != PooledObjectState.ALLOCATED) {
                        throw new IllegalStateException(
                                "Object has already been returned to this pool or is invalid");
                    } else {
                        p.markReturning(); // Keep from being marked abandoned

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     * exceptions queue.
     *
     * @param e exception to be swallowed
     */
    final void swallowException(Exception e) {
        SwallowedExceptionListener listener = getSwallowedExceptionListener();


        if (listener == null) {
            return;
        }


        try {
            listener.onSwallowException(e);
        } catch (OutOfMemoryError oome) {
            throw oome;
        } catch (VirtualMachineError vme) {
            throw vme;
        } catch (Throwable t) {

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     * exceptions queue.
     *
     * @param e exception to be swallowed
     */
    final void swallowException(Exception e) {
        SwallowedExceptionListener listener = getSwallowedExceptionListener();


        if (listener == null) {
            return;
        }


        try {
            listener.onSwallowException(e);
        } catch (OutOfMemoryError oome) {
            throw oome;
        } catch (VirtualMachineError vme) {
            throw vme;
        } catch (Throwable t) {

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     * exceptions queue.
     *
     * @param e exception to be swallowed
     */
    final void swallowException(Exception e) {
        SwallowedExceptionListener listener = getSwallowedExceptionListener();


        if (listener == null) {
            return;
        }


        try {
            listener.onSwallowException(e);
        } catch (OutOfMemoryError oome) {
            throw oome;
        } catch (VirtualMachineError vme) {
            throw vme;
        } catch (Throwable t) {

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     *                                     invoked
     */
    public void setRemoveAbandonedOnMaintenance(
            boolean removeAbandonedOnMaintenance) {
        if (abandonedConfig == null) {
            abandonedConfig = new AbandonedConfig();
        }
        abandonedConfig.setRemoveAbandonedOnMaintenance(
                removeAbandonedOnMaintenance);
    }

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     * @param removeAbandonedOnBorrow true means abandoned connections will be
     *                                removed during pool maintenance
     */
    public void setRemoveAbandonedOnBorrow(boolean removeAbandonedOnBorrow) {
        if (abandonedConfig == null) {
            abandonedConfig = new AbandonedConfig();
        }
        abandonedConfig.setRemoveAbandonedOnBorrow(removeAbandonedOnBorrow);
    }

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     * @see #getRemoveAbandonedOnBorrow()
     * @see #getRemoveAbandonedOnMaintenance()
     */
    public void setRemoveAbandonedTimeout(int removeAbandonedTimeout) {
        if (abandonedConfig == null) {
            abandonedConfig = new AbandonedConfig();
        }
        abandonedConfig.setRemoveAbandonedTimeout(removeAbandonedTimeout);
    }

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    /**
     * @param logAbandoned new logAbandoned property value
     */
    public void setLogAbandoned(boolean logAbandoned) {
        if (abandonedConfig == null) {
            abandonedConfig = new AbandonedConfig();
        }
        abandonedConfig.setLogAbandoned(logAbandoned);
    }

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