doc.FAQ.MyApplicationsFailToConnectAfterIUpgradedMy1x3xDriversTo4x5xWhatDoIDo User creates a JDBC connection URL. For example: jdbc:openlink://localhost:5000/SVT=Ingres II/DATABASE=iidbdb/UID=ingres/PWD=ingres/JDBCAGENT=jodbc The Broker associates all JDBC connection attempts with one of the JDBC Domains that appear in the [Domain] section of the Session Rules Book (oplrqb.ini). For example: [Domain Aliases] jodbc = jodbc judbc = judbc jdbc = jdbc The Broker uses the Domain Alias to resolve the connection using one of the JDBC Mapping Rules from the [Mapping Rules] section of oplrqb.ini. For example: [Mapping Rules] jodbc:*:*:java:*:*:* = accept jodbc_client judbc:*:*:java:*:*:* = accept judbc_client jdbc:*:*:java:*:*:* = accept jdbc_client *:*:*:java:*:*:* = accept judbc_client The Mapping Rules associate the connection attempt with a JDBC agent configuration section. For example: [jodbc_client] Program = jodbc_sv.exe CommandLine = ;+debug ReUse = never The agent configuration section controls which JDBC agent is spawned to service the connection. In the above instance, jodbc_sv.exe is spawned. The JDBC agent spawns the database agent that corresponds to the SVT parameter of the JDBC connection URL. The following sections of the Rules Book shows how SVT Ingres II causes the JDBC agent to spawn the oig2_sv database agent: Domain Aliases] Ingres II = oig2 [Mapping Rules] oig2:*:*:*:*:*:* = reject The Ingres II Database Agent is not configured [generic_oig2] Program = oig2_sv.exe Environment = INGRES_II OpsysLogin = Yes ReUse = never jdbc:openlink://localhost:5000/DSN=My Ingres Data Source/UID=ingres/PWD=ingres