Package org.eclipse.persistence.internal.databaseaccess

Examples of org.eclipse.persistence.internal.databaseaccess.Accessor

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    protected void basicBeginTransaction() throws DatabaseException {
        Collection<Accessor> accessors = getAccessors();
        if (accessors == null) {
            return;
    }
        Accessor failedAccessor = null;
        try {
            for (Accessor accessor : accessors) {
                failedAccessor = accessor;
                basicBeginTransaction(accessor);
            }
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                if(unitOfWork.isInTransaction() || unitOfWork.getParent().isExclusiveIsolatedClientSession()) {
                    return (T) unitOfWork.getAccessor().getConnection();
                }
                if (checkForTransaction(false) != null) {
                    unitOfWork.beginEarlyTransaction();
                    Accessor accessor = unitOfWork.getAccessor();
                    // Ensure external connection is acquired.
                    accessor.incrementCallCount(unitOfWork.getParent());
                    accessor.decrementCallCount();
                    return (T) accessor.getConnection();
                }
                return null;
            } else if (cls.getName().equals("javax.resource.cci.Connection")) {               
                UnitOfWorkImpl unitOfWork = (UnitOfWorkImpl) this.getUnitOfWork();
                if(unitOfWork.isInTransaction() || unitOfWork.getParent().isExclusiveIsolatedClientSession()) {
                    return (T) unitOfWork.getAccessor().getConnection();
                }
                if (checkForTransaction(false) != null) {
                    unitOfWork.beginEarlyTransaction();
                    Accessor accessor = unitOfWork.getAccessor();
                    // Ensure external connection is acquired.
                    accessor.incrementCallCount(unitOfWork.getParent());
                    accessor.decrementCallCount();
                    return (T) accessor.getDatasourceConnection();
                }
                return null;
            }
            throw new PersistenceException(ExceptionLocalization.buildMessage("Provider-does-not-support-the-call", null));
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    protected void basicBeginTransaction() throws DatabaseException {
        Collection<Accessor> accessors = getAccessors();
        if (accessors == null) {
            return;
    }
        Accessor failedAccessor = null;
        try {
            for (Accessor accessor : accessors) {
                failedAccessor = accessor;
                basicBeginTransaction(accessor);
            }
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                if(unitOfWork.isInTransaction() || unitOfWork.getParent().isExclusiveIsolatedClientSession()) {
                    return (T) unitOfWork.getAccessor().getConnection();
                }
                if (checkForTransaction(false) != null) {
                    unitOfWork.beginEarlyTransaction();
                    Accessor accessor = unitOfWork.getAccessor();
                    // Ensure external connection is acquired.
                    accessor.incrementCallCount(unitOfWork.getParent());
                    accessor.decrementCallCount();
                    return (T) accessor.getConnection();
                }
                return null;
            }
            throw new PersistenceException(ExceptionLocalization.buildMessage("Provider-does-not-support-the-call", null));
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    protected void basicBeginTransaction() throws DatabaseException {
        Collection<Accessor> accessors = getAccessors();
        if (accessors == null) {
            return;
    }
        Accessor failedAccessor = null;
        try {
            for (Accessor accessor : accessors) {
                failedAccessor = accessor;
                basicBeginTransaction(accessor);
            }
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    protected void basicBeginTransaction() throws DatabaseException {
        Collection<Accessor> accessors = getAccessors();
        if (accessors == null) {
            return;
    }
        Accessor failedAccessor = null;
        try {
            for (Accessor accessor : accessors) {
                failedAccessor = accessor;
                basicBeginTransaction(accessor);
            }
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        if (!query.isModifyQuery()) {
            return null;
        }
        List<Accessor> accessors = new ArrayList<Accessor>(this.connectionPools.size());
        for (String poolName : this.connectionPools) {
            Accessor accessor = getAccessor(poolName, session, query, true);
            // Do not replicate to dead connection pools.
            if (accessor != null) {
                accessors.add(accessor);
            }
        }
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            // If the client session already has a connection for the transaction, then just use it.
            if (client.hasWriteConnection() && (session.isExclusiveIsolatedClientSession() || session.isInTransaction())) {
                accessors.add(client.getWriteConnection());
                return accessors;
            }
            Accessor accessor = nextAccessor((ServerSession)session.getParent(), query);
            accessors.add(accessor);
            // Assign a write connection for the duration of the transaction.
            if (session.isExclusiveIsolatedClientSession() || session.isInTransaction()) {
                accessor = ((ClientSession)session).addWriteConnection(accessor.getPool().getName(), accessor);
            }
        } else if (session.isServerSession()) {
            Accessor accessor = nextAccessor((ServerSession)session, query);
            accessors.add(accessor);
        } else {
            throw QueryException.partitioningNotSupported(session, query);
        }
        return accessors;
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     * Return the next connection accessor.
     */
    public Accessor nextAccessor(ServerSession session, DatabaseQuery query) {
        int index = nextIndex();
        String poolName = this.connectionPools.get(index);
        Accessor accessor = acquireAccessor(poolName, session, query, true);
        // If the connection pools is dead, check the next one.
        while (accessor == null) {
            int nextIndex = nextIndex();
            poolName = this.connectionPools.get(nextIndex);
            if (index == nextIndex) {
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     * INTERNAL:
     * Return an accessor from the pool for the session.
     * For a client session the accessor is stored for the duration of the transaction.
     */
    public Accessor getAccessor(String poolName, AbstractSession session, DatabaseQuery query, boolean returnNullIfDead) {
        Accessor accessor = null;
        if (session.isClientSession()) {
            ClientSession client = (ClientSession)session;
            // If the client session is exclusive and has a connection then just use the existing connection.
            if (client.isExclusiveIsolatedClientSession() && client.hasWriteConnection()) {
                accessor = client.getWriteConnection();
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Related Classes of org.eclipse.persistence.internal.databaseaccess.Accessor

  • org.eclipse.persistence.descriptors.partitioning.PartitioningPolicy
  • org.eclipse.persistence.descriptors.partitioning.ReplicationPartitioningPolicy
  • org.eclipse.persistence.descriptors.partitioning.RoundRobinPartitioningPolicy
  • org.eclipse.persistence.internal.jpa.EntityManagerImpl
  • org.eclipse.persistence.internal.sessions.AbstractSession
  • org.eclipse.persistence.platform.database.oracle.dcn.OracleChangeNotificationListener
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