How to use

hasMessagePending

method

in

org.postgresql.core.PGStream

public synchronized void processNotifies() throws SQLException {
  // Asynchronous notifies only arrive when we are not in a transaction
  if (protoConnection.getTransactionState() != ProtocolConnection.TRANSACTION_IDLE)
    return;
    
  try {
    while (pgStream.hasMessagePending()) {
      int c = pgStream.ReceiveChar();
      switch (c) {
      case 'A':  // Asynchronous Notify
        receiveAsyncNotify();
        break;
      case 'E':  // Error Message
        throw receiveErrorMessage();
        // break;
      case 'N':  // Error Notification
        protoConnection.addWarning(receiveNotification());
        break;
      default:
        throw new PSQLException(GT.tr("Unknown Response Type {0}.", new Character((char) c)), PSQLState.CONNECTION_FAILURE);
      }
    }
  } catch (IOException ioe) {
    throw new PSQLException(GT.tr("An I/O error occured while sending to the backend."), PSQLState.CONNECTION_FAILURE, ioe);
  }
}

public synchronized void processNotifies() throws SQLException {
  waitOnLock();
  // Asynchronous notifies only arrive when we are not in a transaction
  if (protoConnection.getTransactionState() != ProtocolConnection.TRANSACTION_IDLE)
    return;
  try {
    while (pgStream.hasMessagePending()) {
      int c = pgStream.ReceiveChar();
      switch (c) {
      case 'A':  // Asynchronous Notify
        receiveAsyncNotify();
        break;
      case 'E':  // Error Response (response to pretty much everything; backend then skips until Sync)
        throw receiveErrorResponse();
        // break;
      case 'N':  // Notice Response (warnings / info)
        SQLWarning warning = receiveNoticeResponse();
        protoConnection.addWarning(warning);
        break;
      default:
        throw new PSQLException(GT.tr("Unknown Response Type {0}.", new Character((char) c)), PSQLState.CONNECTION_FAILURE);
      }
    }
  } catch (IOException ioe) {
    throw new PSQLException(GT.tr("An I/O error occured while sending to the backend."), PSQLState.CONNECTION_FAILURE, ioe);
  }
}

int len;
while (!endReceiving && (block || pgStream.hasMessagePending())) {

while (timeoutMillis >= 0 || pgStream.hasMessagePending()) {
 if (useTimeout && timeoutMillis >= 0) {
  setSocketTimeout(timeoutMillis);

int len;
while( !endReceiving && (block || pgStream.hasMessagePending()) ) {

public synchronized void processNotifies() throws SQLException {
  // Asynchronous notifies only arrive when we are not in a transaction
  if (protoConnection.getTransactionState() != ProtocolConnection.TRANSACTION_IDLE)
    return;
    
  try {
    while (pgStream.hasMessagePending()) {
      int c = pgStream.ReceiveChar();
      switch (c) {
      case 'A':  // Asynchronous Notify
        receiveAsyncNotify();
        break;
      case 'E':  // Error Message
        throw receiveErrorMessage();
        // break;
      case 'N':  // Error Notification
        protoConnection.addWarning(receiveNotification());
        break;
      default:
        throw new PSQLException(GT.tr("Unknown Response Type {0}.", new Character((char) c)), PSQLState.CONNECTION_FAILURE);
      }
    }
  } catch (IOException ioe) {
    throw new PSQLException(GT.tr("An I/O error occured while sending to the backend."), PSQLState.CONNECTION_FAILURE, ioe);
  }
}

public synchronized void processNotifies() throws SQLException {
  // Asynchronous notifies only arrive when we are not in a transaction
  if (protoConnection.getTransactionState() != ProtocolConnection.TRANSACTION_IDLE)
    return;
    
  try {
    while (pgStream.hasMessagePending()) {
      int c = pgStream.ReceiveChar();
      switch (c) {
      case 'A':  // Asynchronous Notify
        receiveAsyncNotify();
        break;
      case 'E':  // Error Message
        throw receiveErrorMessage();
        // break;
      case 'N':  // Error Notification
        protoConnection.addWarning(receiveNotification());
        break;
      default:
        throw new PSQLException(GT.tr("Unknown Response Type {0}.", new Character((char) c)), PSQLState.CONNECTION_FAILURE);
      }
    }
  } catch (IOException ioe) {
    throw new PSQLException(GT.tr("An I/O error occured while sending to the backend."), PSQLState.CONNECTION_FAILURE, ioe);
  }
}

public synchronized void processNotifies() throws SQLException {
  waitOnLock();
  // Asynchronous notifies only arrive when we are not in a transaction
  if (protoConnection.getTransactionState() != ProtocolConnection.TRANSACTION_IDLE)
    return;
  try {
    while (pgStream.hasMessagePending()) {
      int c = pgStream.ReceiveChar();
      switch (c) {
      case 'A':  // Asynchronous Notify
        receiveAsyncNotify();
        break;
      case 'E':  // Error Response (response to pretty much everything; backend then skips until Sync)
        throw receiveErrorResponse();
        // break;
      case 'N':  // Notice Response (warnings / info)
        SQLWarning warning = receiveNoticeResponse();
        protoConnection.addWarning(warning);
        break;
      default:
        throw new PSQLException(GT.tr("Unknown Response Type {0}.", new Character((char) c)), PSQLState.CONNECTION_FAILURE);
      }
    }
  } catch (IOException ioe) {
    throw new PSQLException(GT.tr("An I/O error occured while sending to the backend."), PSQLState.CONNECTION_FAILURE, ioe);
  }
}

public synchronized void processNotifies() throws SQLException {
  waitOnLock();
  // Asynchronous notifies only arrive when we are not in a transaction
  if (protoConnection.getTransactionState() != ProtocolConnection.TRANSACTION_IDLE)
    return;
  try {
    while (pgStream.hasMessagePending()) {
      int c = pgStream.ReceiveChar();
      switch (c) {
      case 'A':  // Asynchronous Notify
        receiveAsyncNotify();
        break;
      case 'E':  // Error Response (response to pretty much everything; backend then skips until Sync)
        throw receiveErrorResponse();
        // break;
      case 'N':  // Notice Response (warnings / info)
        SQLWarning warning = receiveNoticeResponse();
        protoConnection.addWarning(warning);
        break;
      default:
        throw new PSQLException(GT.tr("Unknown Response Type {0}.", new Character((char) c)), PSQLState.CONNECTION_FAILURE);
      }
    }
  } catch (IOException ioe) {
    throw new PSQLException(GT.tr("An I/O error occured while sending to the backend."), PSQLState.CONNECTION_FAILURE, ioe);
  }
}

int len;
while( !endReceiving && (block || pgStream.hasMessagePending()) ) {
  int c = pgStream.ReceiveChar();
  switch(c) {

int len;
while( !endReceiving && (block || pgStream.hasMessagePending()) ) {