1 

     2 /*

     3  * Copyright (c) 2007-2008 Nokia Corporation and/or its subsidiary(-ies).

     4  * All rights reserved.

     5  * This component and the accompanying materials are made available

     6  * under the terms of the License "Eclipse Public License v1.0"

     7  * which accompanies this distribution, and is available

     8  * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     9  *

    10  * Initial Contributors:

    11  * Nokia Corporation - initial contribution.

    12  *

    13  * Contributors:

    14  *

    15  * Description:  

    16  *

    17  */

    18 

    19 package com.nokia.helium.jpa;

    20 

    21 import org.apache.log4j.Logger;

    22 import javax.persistence.EntityManager;

    23 

    24 /**

    25  * This class is used to keep track of number of objects

    26  * remaining to be commited to the database.

    27  */

    28 public class ORMCommitCount {

    29 

    30     private static Logger log = Logger.getLogger(ORMCommitCount.class);

    31 

    32     private static final int PERSISTANCE_COUNT_LIMIT = 1000;

    33 

    34     private static EntityManager entityManager;

    35 

    36     private int count;

    37 

    38     /** Constructor.

    39      */

    40     public ORMCommitCount() {

    41         count = PERSISTANCE_COUNT_LIMIT;

    42     }

    43 

    44     /**

    45      * Reduce the commit count value by one.

    46      */

    47     public void decreaseCount() {

    48         count --;

    49     }

    50 

    51     /**

    52      * Reset to maximum limit

    53      */

    54     public void reset() {

    55         count = PERSISTANCE_COUNT_LIMIT;

    56     }

    57 

    58     /**

    59      * Returns whether the commit is required or not.

    60      * @return if commit required returns true otherwise false.

    61      */

    62     public boolean isCommitRequired() {

    63         return count == 0;

    64     }

    65 

    66     /**

    67      * Returns whether if there are any data to commit

    68      * @return true if any data there to commit, otherwise false.

    69      */

    70     public boolean isDatatoCommit() {

    71         //log.debug("isDatatoCommit: " + (count < PERSISTANCE_COUNT_LIMIT));

    72         return count < PERSISTANCE_COUNT_LIMIT;

    73     }

    74 }