protected void addInstallChanges(DatabaseChangeSet changeSet) {}
// internal helpers
private org.springframework.jdbc.versioned.DatabaseUpgrader createUpgrader(DataSource dataSource) {
GenericDatabaseUpgrader upgrader = new GenericDatabaseUpgrader(dataSource);
if (upgrader.getCurrentDatabaseVersion().equals(DatabaseVersion.zero())) {
addInstallChangeSet(upgrader);
} else {
addUpgradeChangeSets(upgrader);
}
return upgrader;