@Override
protected void readUniqueConstraints(
DatabaseSnapshot snapshot, String schema, DatabaseMetaData databaseMetaData)
throws DatabaseException, SQLException {
Database database = snapshot.getDatabase();
updateListeners("Reading unique constraints for " + database.toString() + " ...");
List<UniqueConstraint> foundUC = new ArrayList<UniqueConstraint>();
Connection jdbcConnection =
((JdbcConnection) database.getConnection()).getUnderlyingConnection();
PreparedStatement statement = null;
ResultSet rs = null;
// Setting default schema name. Needed for correct statement generation
if (schema == null) schema = database.convertRequestedSchemaToSchema(schema);
try {
String query =
"select uc.constraint_name,uc.table_name,uc.status,uc.deferrable,uc.deferred,ui.tablespace_name from all_constraints uc, all_cons_columns ucc, all_indexes ui where uc.constraint_type='U' and uc.index_name = ui.index_name and uc.constraint_name = ucc.constraint_name and uc.owner = '"
+ schema
+ "' and ui.table_owner = '"
+ schema
+ "' and ucc.owner = '"
+ schema
+ "'";
statement = jdbcConnection.prepareStatement(query);
rs = statement.executeQuery();
while (rs.next()) {
String constraintName = rs.getString("constraint_name");
String tableName = rs.getString("table_name");
String status = rs.getString("status");
String deferrable = rs.getString("deferrable");
String deferred = rs.getString("deferred");
String tablespace = rs.getString("tablespace_name");
UniqueConstraint constraintInformation = new UniqueConstraint();
constraintInformation.setName(constraintName);
constraintInformation.setTablespace(tablespace);
if (!database.isSystemTable(null, schema, tableName)
&& !database.isLiquibaseTable(tableName)) {
Table table = snapshot.getTable(tableName);
if (table == null) {
continue; // probably different schema
}
constraintInformation.setTable(table);
constraintInformation.setDisabled("DISABLED".equals(status));
if ("DEFERRABLE".equals(deferrable)) {
constraintInformation.setDeferrable(true);
constraintInformation.setInitiallyDeferred("DEFERRED".equals(deferred));
}
getColumnsForUniqueConstraint(jdbcConnection, constraintInformation, schema);
foundUC.add(constraintInformation);
}
}
snapshot.getUniqueConstraints().addAll(foundUC);
} finally {
try {
rs.close();
} catch (SQLException ignored) {
}
if (statement != null) {
statement.close();
}
}
}
@Override
protected void readPrimaryKeys(
DatabaseSnapshot snapshot, String schema, DatabaseMetaData databaseMetaData)
throws DatabaseException, SQLException {
Database database = snapshot.getDatabase();
updateListeners("Reading primary keys for " + database.toString() + " ...");
// we can't add directly to the this.primaryKeys hashSet because adding columns to an exising PK
// changes the hashCode and .contains() fails
List<PrimaryKey> foundPKs = new ArrayList<PrimaryKey>();
// Setting default schema name. Needed for correct statement generation
if (schema == null) schema = database.convertRequestedSchemaToSchema(schema);
String query =
"select uc.table_name TABLE_NAME,ucc.column_name COLUMN_NAME,ucc.position KEY_SEQ,uc.constraint_name PK_NAME,ui.tablespace_name TABLESPACE from all_constraints uc,all_indexes ui,all_cons_columns ucc where uc.constraint_type = 'P' and uc.index_name = ui.index_name and uc.constraint_name = ucc.constraint_name and uc.owner = '"
+ schema
+ "' and ui.table_owner = '"
+ schema
+ "' and ucc.owner = '"
+ schema
+ "' and uc.table_name = ui.table_name and ui.table_name = ucc.table_name";
Statement statement = null;
ResultSet rs = null;
try {
statement =
((JdbcConnection) database.getConnection()).getUnderlyingConnection().createStatement();
rs = statement.executeQuery(query);
while (rs.next()) {
String tableName = convertFromDatabaseName(rs.getString("TABLE_NAME"));
String tablespace = convertFromDatabaseName(rs.getString("TABLESPACE"));
String columnName = convertFromDatabaseName(rs.getString("COLUMN_NAME"));
short position = rs.getShort("KEY_SEQ");
boolean foundExistingPK = false;
for (PrimaryKey pk : foundPKs) {
if (pk.getTable().getName().equals(tableName)) {
pk.addColumnName(position - 1, columnName);
foundExistingPK = true;
}
}
if (!foundExistingPK && !database.isLiquibaseTable(tableName)) {
PrimaryKey primaryKey = new PrimaryKey();
primaryKey.setTablespace(tablespace);
Table table = snapshot.getTable(tableName);
if (table == null) {
continue; // probably a different schema
}
primaryKey.setTable(table);
primaryKey.addColumnName(position - 1, columnName);
primaryKey.setName(convertPrimaryKeyName(rs.getString("PK_NAME")));
foundPKs.add(primaryKey);
}
}
} finally {
JdbcUtils.closeResultSet(rs);
JdbcUtils.closeStatement(statement);
}
snapshot.getPrimaryKeys().addAll(foundPKs);
}
