https://docs.oracle.com/javaee/6/api/javax/resource/spi/ConnectionEventListener.html?is-external=true
ConnectionEventListener (Java EE 6 )
java ee
https://developers.google.com/j2objc/javadoc/jre/reference/javax/sql/ConnectionEventListener.html
ConnectionEventListener | J2ObjC | Google for Developers
googledevelopers