src/main/java/com/conveyal/gtfs/loader/JdbcTableWriter.java
private void deleteChildEntities(Table childTable, Field keyField, String keyValue) throws SQLException {
        String childTableName = String.join(".", tablePrefix, childTable.name);
        PreparedStatement deleteStatement = getUpdateReferencesStatement(SqlMethod.DELETE, childTableName, keyField, keyValue, null);
        LOG.info(deleteStatement.toString());
        int result = deleteStatement.executeUpdate();
        LOG.info("Deleted {} {}", result, childTable.name);
        // FIXME: are there cases when an update should not return zero?
        //   if (result == 0) throw new SQLException("No stop times found for trip ID");
    }
private void deleteChildEntities(Table childTable, Field keyField, String keyValue) throws SQLException {
        String childTableName = String.join(".", tablePrefix, childTable.name);
        PreparedStatement deleteStatement = getUpdateReferencesStatement(SqlMethod.DELETE, childTableName, keyField, keyValue, null);
        LOG.info(deleteStatement.toString());
        int result = deleteStatement.executeUpdate();
        LOG.info("Deleted {} {}", result, childTable.name);
        // FIXME: are there cases when an update should not return zero?
        //   if (result == 0) throw new SQLException("No stop times found for trip ID");
    }
private void deleteChildEntities ( Table childTable , Field keyField , String keyValue ) throws SQLException { String childTableName = String . join ( "." , tablePrefix , childTable . name ) ; PreparedStatement deleteStatement = getUpdateReferencesStatement ( SqlMethod . DELETE , childTableName , keyField , keyValue , null ) ; LOG . info ( deleteStatement . toString ( ) ) ; int result = deleteStatement . executeUpdate ( ) ; LOG . info ( "Deleted {} {}" , result , childTable . name ) ; // FIXME: are there cases when an update should not return zero? //   if (result == 0) throw new SQLException("No stop times found for trip ID"); }
Delete existing sub-entities for given key value for when an update to the parent entity is made (i.e., the parent
entity is not being newly created). Examples of sub-entities include stop times for trips, pattern stops for a
pattern, or shape points (for a pattern in our model).
Delete existing sub - entities for given key value for when an update to the parent entity is made ( i . e . the parent entity is not being newly created ) . Examples of sub - entities include stop times for trips pattern stops for a pattern or shape points ( for a pattern in our model ) .