Examples of com.sun.jdo.api.persistence.support.Transaction

Package com.sun.jdo.api.persistence.support

Examples of com.sun.jdo.api.persistence.support.Transaction

com.sun.jdo.api.persistence.support.Transaction
The JDO Transaction interface is a sub-interface of the PersistenceManager that deals with options and completion of transactions under user control.
Transaction options include whether optimistic concurrency control should be used for the current transaction, and whether values should be retained in JDO instances after transaction completion.
Transaction completion methods have the same semantics as javax.transaction UserTransaction, and are valid only in the non-managed, non-distributed transaction environment. @author Craig Russell @version 0.1


    /** Flush transactional changes to the database.
     * @param pm PersistenceManager
     */
    public static void flush(PersistenceManager pm) {
        Transaction tx = pm.currentTransaction();
        // flush updates to the database if transaction is active.
        if (tx != null && tx.isActive()) {
            PersistenceManagerWrapper pmw = (PersistenceManagerWrapper)pm;
            PersistenceManagerImpl pmi = 
                    (PersistenceManagerImpl)pmw.getPersistenceManager();
            pmi.internalFlush();
        }

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     * <p>
     * @return  ConnectionImpl associated with the transaction on
     *          the current thread; null otherwise.
     */
    private synchronized ConnectionImpl checkXact() {
        Transaction tran = null;


        /* RESOLVE: Need to reimplement this???
    try
    {
      // Is this ForteJDBCConnet participating in a transaction?

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    /**
     *
     */
    private void flush()
    {
        Transaction tx = pm.currentTransaction();
        // flush updates to the database,
        // - if the is a transaction active and
        // - if transaction is not optimistic
        // - if ignoreCache is false
        if ((tx != null) && tx.isActive() && 
            !tx.getOptimistic() && !this.ignoreCache)
        {
            pm.internalFlush();
        }
    }

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    /**
     *
     */
    private void flush()
    {
        Transaction tx = pm.currentTransaction();
        // flush updates to the database,
        // - if the is a transaction active and
        // - if transaction is not optimistic
        // - if ignoreCache is false
        if ((tx != null) && tx.isActive() && 
            !tx.getOptimistic() && !this.ignoreCache)
        {
            pm.internalFlush();
        }
    }

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    /** Flush transactional changes to the database.
     * @param pm PersistenceManager
     */
    public static void flush(PersistenceManager pm) {
        Transaction tx = pm.currentTransaction();
        // flush updates to the database if transaction is active.
        if (tx != null && tx.isActive()) {
            PersistenceManagerWrapper pmw = (PersistenceManagerWrapper)pm;
            PersistenceManagerImpl pmi = 
                    (PersistenceManagerImpl)pmw.getPersistenceManager();
            pmi.internalFlush();
        }

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     * <p>
     * @return  ConnectionImpl associated with the transaction on
     *          the current thread; null otherwise.
     */
    private synchronized ConnectionImpl checkXact() {
        Transaction tran = null;


        /* RESOLVE: Need to reimplement this???
    try
    {
      // Is this ForteJDBCConnet participating in a transaction?

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Related Classes of com.sun.jdo.api.persistence.support.Transaction

com.sun.jdo.spi.persistence.support.sqlstore.connection.ConnectionManager

com.sun.jdo.spi.persistence.support.sqlstore.ejb.CMPHelper

com.sun.jdo.spi.persistence.support.sqlstore.query.QueryImpl

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