JDBC Connection and Statement Classes
Since Connection and Statements are interfaces, interface methods will be abstract by default. How can we create Connection and Statement interfaces in our Java program while connecting to the database? ...
connection
Creating a database connection pool.
Need information on creating a connection pool to the database (irrespective of the database) , and how efficient they are? What are the conditions where they can enhance performance. How to create it explicitly? ...
MySql connection, can I leave it open?
Is it smart to keep the connection open throughout the entire session? I made a C# application that connects to a MySql database, the program both reads and writes to it and the application has to be running about 10 hours a day non-stop. Are there any risk attached to keeping the connection open instead of calling the close() function ...
OracleConnection throwing exception
I'm learning how to work with Oracle and am using C#/Visual Studio. Just as a reference, I'm following this simple tutorial, and have all the prerequisites done (database installed and ODAC with dev tools installed). The following code that's supposed to create an object for connection to a database throws an exception saying "Object ref...
Unable to connect to a local MYSQL server on wireles LAN.
Ok, Here is the technical description. My laptop's config: Ip Adress:192.168.2.5 Mysqlserver 5.0 on port : 3306 Operating system: Ubuntu jaunty (9.04) 3306 is open for both incoming and outgoing. My friend's laptop config: Ip Adress:192.168.2.4 Mysqlserver 5.0 on port : 3306 Operating system: Windows XP pro 3306 is open for both incomi...
How to export connection using Eclipse Remote System Explorer
How can I export every connection in RSE from an Eclipse installation to another? I can get it to export connection one by one but I cant't get it to export every connection at once. Thanks! ...
Internet connectivity problem in windows mobile?
Hi, I am trying to connect my htc phone to the wi-fi. Though my phone shows connected to the network and get the IP address also but it does give me access to internet. I have checked all possible settings and matched that i have also selected WPA2-PSK (AES) as shown in my pcs settings. But hard luck I am not able to connect to the inte...
Network Connection Blackberry
How to get the best possible http connection in an blackberry application? I use the Network Diagnostic tool provided by RIM but most of the time it fails to find any connection while other applications are connected to the internet without a problem. Is there any other way to find out how to connect to internet? ...
HTTPS requests and multi-threading
Is Java's URL class a thread-safe, in particular URL.openConnection()? In my application, I make tens of concurrent HTTPS connections a second to the same URL, and I would like to maximize object reuse. Yet, it's not clear from the documentation what can be reused. EDIT: I'm open to using a different library if needed. ...
getting IOException : Peer refused the connection (BlackBerry)
Hi all... Can anyone tell me why i am getting this IOException:smileytongue:eer refused the connection??? I was testing my application yesterday it was working fine..but today when i opened it i cannot log int my application...i cannot login from the simulator. .i hve tried appending ";deviceside=true" , ";deviceside=false" and removin...
Help Socket Programming
Hi All In my application I fetching the updated data in every 25 second… but some time my application crashes while fetching the updated data.. to resolve this we are planning to use socket connection for live updates I am tried to find any sample application for socket connection or socket communication in ADC Library platform but fou...
Hibernate causing too many time_wait connections
I am using Hibernate 3 and I am facing a problem related to connections being closed. I am using c3p0-0.9.1.2.jar and I checked onto the connections to database server opened by Hibernate, I found that there are established connections which are 5 in number; at some TCP ports of server (see below log). But these established connection...
Can't connect to MySQL database from tomcat
Hey, I'm getting this error: com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: Could not create connection to database server. Attempted reconnect 3 times. Giving up. I'm just trying to connect to the database. With this code <%@page import="java.sql.*"%> <% try{ // Class.forName("com.mysql.jdbc.Driver"); C...
Juggernaut-like engine for .net?
Does anyone know of an engine for .net that provides realtime server connection like Juggernaut for Rails? Preferably open source. ...
CoverageInfo.getCoverageStatus() vs CoverageInfo.isCoverageSufficient(), are they the same?
In trying to determing a if a specific connection is supported, I'm cofused about the difference between CoverageInfo.getCoverageStatus() and CoverageInfo.isCoverageSufficient(). For example: // check mds with getCoverageStatus() and bitwise check boolean hasMdsCoverage1 = (CoverageInfo.getCoverageStatus() & CoverageInfo.COVERAGE_MDS) =...
Display Problem with absolutepanel with gwt-connector
Hi, I am trying to use GWT-Connector in one of my classes to create the connection point to the widgets. Here is what i have: public class Test extends Composite{ RequiredData rd = new RequiredData(); public Test(){ TextBox t1 = new TextBox(); t1.setSize("100px", "20px"); t1.setText("Hi"); t1.setTitle("textbox"); CustomSh...
Java Windows Mobile Application Taking Too Long To Reestablish Network Connectivity
We have a Java application running on the JBed JVM on Windows mobile 6.1. When it loses connectivity the application is taking a long time (8 - 10 minutes) to re-establish VPN network connectivity, despite the fact that other applications can see the VPN far sooner (roughly 2 - 3 minutes). From our application logs we can see that two ...
Connection refused to s3 storage
Hello everybody, I m trying to upload a file through attachment fu to amazon s3 storage using the following code :- has_attachment :storage => :s3, :content_type => ['audio/mp3','audio/flac','audio/wav'], :path_prefix => '#####', :output_path => '######', :processor =>...
Setting up tomcat + ssl failed.. cannot connect to SSL channel?
Hi, I'm trying to get Tomcat 6.0.20 working with SSL authentication. I used keytool to create a new certificate, put it into my user dir, and set the tomcat authentication to this (server.xml): (Omitted) --> <Server port="8005" shutdown="SHUTDOWN"> <!--APR library loader. Documentation at /docs/apr.html --> <Listener className="...
How to specify a baseDN when connecting to LDAP via python?
I want to connect to a ldap server with python-ldap using a specific baseDN. import ldap baseDN="ou=unit,o=org.c=xx" # doesn't work #baseDN="" # works host="ldaps://test.org.xx:636" userDN="cn=proxyhlrb,ou=services,o=org,c=xx" passwd="secret" server=ldap.initialize(host+"/"+baseDN) server.bind_s(userDN,passwd,ldap.AUTH_SIMPLE) Wha...