I wondered how works method getConnection() at DataSource? I assume that DataSource calling DriverManager.getConnection every time when we call DataSource.getConnection with our properties that we setting in DataSource. Is that true? Answer The answers to your question can be deduced from the DataSource javadoc. “The DataSource interface is implemented by a driver vendor. There are three types of implementations: Basic
I have a batch configuration. I saw the batch process is default using InMemoryMap. Instead I need to use the MySQL to send all the execution details by Batch. But when I use the following code I am getting the following error, Error creating bean with name ‘batchDataSource’: Requested bean is currently in creation: Is there an unresolvable circular reference?
I have heard many times that not closing database connections might lead to a memory leak. (For example in this article) I tried reproducing the same issue by getting a connection from org.apache….
I am trying to deploy an ear file to a Weblogic 12 server. The ear file contains a HttpServlet. During deployment, the HttpServlet is trying to initialize and fails with this error: Target state: deploy failed on Cluster javax.naming.NameNotFoundException: While trying to lookup ‘jdbc.’ didn’t find subcontext ‘jdbc’. Resolved ” at weblogic.jndi.internal.BasicNamingNode.newNameNotFoundException(BasicNamingNode.java:1180) I tested the data source connection on the
I’m trying to follow Sun’s JDBC tutorial at http://java.sun.com/docs/books/tutorial/jdbc/basics/connecting.html It gives the following example code: DataSource ds = (DataSource) org.apache.derby….