WAR, which stands for Web Application Archive, is a file used to distribute a collection of resources/files that constitute a web application. A JAR file (such as the JDBC driver JAR file) is one type you can include in a WAR file. Using WAR files makes it easy to test and deploy web applications. The WEB-INF subdirectory within the WAR file is where you place the necessary files for database access.
Prior to TimesTen release 22.1.1.20.0 and 18.1.4.40.0, you had to perform a TimesTen client instance installation on the application server, as well as manually copy the different database files (from different locations within TimesTen installation) to the WEB-INF directory to deploy using the WAR file of a web application. This method doesn’t scale with the deployment of web applications using TimesTen, especially over multiple application servers. Starting with TimesTen releases 22.1.1.20.0 and 18.1.4.40.0, TimesTen provides a new JDBC client package to streamline the deployment of web applications connecting to TimesTen using a WAR file. See Deploy TimesTen JDBC driver in Web Applications for step-by-step instructions.