private static RelDataType sqlType()

in wayang-api/wayang-api-sql/src/main/java/org/apache/wayang/api/sql/calcite/jdbc/JdbcSchema.java [388:421]

31 lines of code
10 McCabe index (conditional complexity)


  private static RelDataType sqlType(RelDataTypeFactory typeFactory, int dataType,
                                     int precision, int scale, @Nullable String typeString) {
    // Fall back to ANY if type is unknown
    final SqlTypeName sqlTypeName =
        Util.first(SqlTypeName.getNameForJdbcType(dataType), SqlTypeName.ANY);
    switch (sqlTypeName) {
    case ARRAY:
      RelDataType component = null;
      if (typeString != null && typeString.endsWith(" ARRAY")) {
        // E.g. hsqldb gives "INTEGER ARRAY", so we deduce the component type
        // "INTEGER".
        final String remaining = typeString.substring(0,
            typeString.length() - " ARRAY".length());
        component = parseTypeString(typeFactory, remaining);
      }
      if (component == null) {
        component = typeFactory.createTypeWithNullability(
            typeFactory.createSqlType(SqlTypeName.ANY), true);
      }
      return typeFactory.createArrayType(component, -1);
    default:
      break;
    }
    if (precision >= 0
        && scale >= 0
        && sqlTypeName.allowsPrecScale(true, true)) {
      return typeFactory.createSqlType(sqlTypeName, precision, scale);
    } else if (precision >= 0 && sqlTypeName.allowsPrecNoScale()) {
      return typeFactory.createSqlType(sqlTypeName, precision);
    } else {
      assert sqlTypeName.allowsNoPrecNoScale();
      return typeFactory.createSqlType(sqlTypeName);
    }
  }