/** Initialises the database connection and associated data access objects. */
private void initialize() {
if (dbCtx == null) {
ActionDao actionDao;
dbCtx = new DatabaseContext(loginCredentials);
jdbcTemplate = dbCtx.getSimpleJdbcTemplate();
dbCtx.beginTransaction();
new SchemaVersionValidator(jdbcTemplate, preferences)
.validateVersion(PostgreSqlVersionConstants.SCHEMA_VERSION);
capabilityChecker = new DatabaseCapabilityChecker(dbCtx);
actionDao = new ActionDao(dbCtx);
userDao = new UserDao(dbCtx, actionDao);
nodeDao = new NodeDao(dbCtx, actionDao);
wayDao = new WayDao(dbCtx, actionDao);
relationDao = new RelationDao(dbCtx, actionDao);
nodeManager = new PostgreSqlEntityManager<Node>(nodeDao, userDao);
wayManager = new PostgreSqlEntityManager<Way>(wayDao, userDao);
relationManager = new PostgreSqlEntityManager<Relation>(relationDao, userDao);
}
initialized = true;
}
/** {@inheritDoc} */
public void release() {
if (dbCtx != null) {
dbCtx.release();
dbCtx = null;
}
}
/**
* Creates a new instance.
*
* @param dbCtx The database context to use for accessing the database.
* @param actionDao The dao to use for adding action records to the database.
*/
public NodeDao(DatabaseContext dbCtx, ActionDao actionDao) {
super(dbCtx.getJdbcTemplate(), new NodeMapper(), actionDao);
jdbcTemplate = dbCtx.getJdbcTemplate();
capabilityChecker = new DatabaseCapabilityChecker(dbCtx);
}
/** {@inheritDoc} */
public void complete() {
dbCtx.commitTransaction();
}
