static

in core/src/main/java/org/apache/calcite/sql/type/SqlTypeAssignmentRule.java [54:226]

• 115 lines of code
• 3 McCabe index (conditional complexity)

  static {
    final SqlTypeMappingRules.Builder rules = SqlTypeMappingRules.builder();

    final Set<SqlTypeName> rule = new HashSet<>();

    // IntervalYearMonth is assignable from...
    for (SqlTypeName interval : SqlTypeName.YEAR_INTERVAL_TYPES) {
      rules.add(interval, SqlTypeName.YEAR_INTERVAL_TYPES);
    }
    for (SqlTypeName interval : SqlTypeName.DAY_INTERVAL_TYPES) {
      rules.add(interval, SqlTypeName.DAY_INTERVAL_TYPES);
    }

    // MULTISET is assignable from...
    rules.add(SqlTypeName.MULTISET, EnumSet.of(SqlTypeName.MULTISET));

    // TINYINT is assignable from...
    rules.add(SqlTypeName.TINYINT, EnumSet.of(SqlTypeName.TINYINT));

    // SMALLINT is assignable from...
    rule.clear();
    rule.add(SqlTypeName.TINYINT);
    rule.add(SqlTypeName.SMALLINT);
    rules.add(SqlTypeName.SMALLINT, rule);

    // INTEGER is assignable from...
    rule.clear();
    rule.add(SqlTypeName.TINYINT);
    rule.add(SqlTypeName.SMALLINT);
    rule.add(SqlTypeName.INTEGER);
    rules.add(SqlTypeName.INTEGER, rule);

    // BIGINT is assignable from...
    rule.clear();
    rule.add(SqlTypeName.TINYINT);
    rule.add(SqlTypeName.SMALLINT);
    rule.add(SqlTypeName.INTEGER);
    rule.add(SqlTypeName.BIGINT);
    rules.add(SqlTypeName.BIGINT, rule);

    // FLOAT (up to 64 bit floating point) is assignable from...
    rule.clear();
    rule.add(SqlTypeName.TINYINT);
    rule.add(SqlTypeName.SMALLINT);
    rule.add(SqlTypeName.INTEGER);
    rule.add(SqlTypeName.BIGINT);
    rule.add(SqlTypeName.DECIMAL);
    rule.add(SqlTypeName.FLOAT);
    rule.add(SqlTypeName.DOUBLE);
    rules.add(SqlTypeName.FLOAT, rule);

    // REAL (32 bit floating point) is assignable from...
    rule.clear();
    rule.add(SqlTypeName.TINYINT);
    rule.add(SqlTypeName.SMALLINT);
    rule.add(SqlTypeName.INTEGER);
    rule.add(SqlTypeName.BIGINT);
    rule.add(SqlTypeName.DECIMAL);
    rule.add(SqlTypeName.FLOAT);
    rule.add(SqlTypeName.DOUBLE);
    rule.add(SqlTypeName.REAL);
    rules.add(SqlTypeName.REAL, rule);

    // DOUBLE is assignable from...
    rule.clear();
    rule.add(SqlTypeName.TINYINT);
    rule.add(SqlTypeName.SMALLINT);
    rule.add(SqlTypeName.INTEGER);
    rule.add(SqlTypeName.BIGINT);
    rule.add(SqlTypeName.DECIMAL);
    rule.add(SqlTypeName.FLOAT);
    rule.add(SqlTypeName.REAL);
    rule.add(SqlTypeName.DOUBLE);
    rules.add(SqlTypeName.DOUBLE, rule);

    // DECIMAL is assignable from...
    rule.clear();
    rule.add(SqlTypeName.TINYINT);
    rule.add(SqlTypeName.SMALLINT);
    rule.add(SqlTypeName.INTEGER);
    rule.add(SqlTypeName.BIGINT);
    rule.add(SqlTypeName.REAL);
    rule.add(SqlTypeName.DOUBLE);
    rule.add(SqlTypeName.DECIMAL);
    rules.add(SqlTypeName.DECIMAL, rule);

    // VARBINARY is assignable from...
    rule.clear();
    rule.add(SqlTypeName.VARBINARY);
    rule.add(SqlTypeName.BINARY);
    rules.add(SqlTypeName.VARBINARY, rule);

    // CHAR is assignable from...
    rules.add(SqlTypeName.CHAR, EnumSet.of(SqlTypeName.CHAR));

    // VARCHAR is assignable from...
    rule.clear();
    rule.add(SqlTypeName.CHAR);
    rule.add(SqlTypeName.VARCHAR);
    rules.add(SqlTypeName.VARCHAR, rule);

    // BOOLEAN is assignable from...
    rules.add(SqlTypeName.BOOLEAN, EnumSet.of(SqlTypeName.BOOLEAN));

    // BINARY is assignable from...
    rule.clear();
    rule.add(SqlTypeName.BINARY);
    rule.add(SqlTypeName.VARBINARY);
    rules.add(SqlTypeName.BINARY, rule);

    // DATE is assignable from...
    rule.clear();
    rule.add(SqlTypeName.DATE);
    rules.add(SqlTypeName.DATE, rule);

    // TIME is assignable from...
    rule.clear();
    rule.add(SqlTypeName.TIME);
    rules.add(SqlTypeName.TIME, rule);

    // TIME WITH LOCAL TIME ZONE is assignable from...
    rules.add(SqlTypeName.TIME_WITH_LOCAL_TIME_ZONE,
        EnumSet.of(SqlTypeName.TIME_WITH_LOCAL_TIME_ZONE));

    // TIME WITH TIME ZONE is assignable from...
    rules.add(SqlTypeName.TIME_TZ, EnumSet.of(SqlTypeName.TIME_TZ));

    // TIMESTAMP is assignable from ...
    rules.add(SqlTypeName.TIMESTAMP, EnumSet.of(SqlTypeName.TIMESTAMP));

    // TIMESTAMP WITH LOCAL TIME ZONE is assignable from...
    rules.add(SqlTypeName.TIMESTAMP_WITH_LOCAL_TIME_ZONE,
        EnumSet.of(SqlTypeName.TIMESTAMP_WITH_LOCAL_TIME_ZONE));

    // TIMESTAMP WITH TIME ZONE is assignable from...
    rules.add(SqlTypeName.TIMESTAMP_TZ, EnumSet.of(SqlTypeName.TIMESTAMP_TZ));

    // GEOMETRY is assignable from ...
    rule.clear();
    rule.add(SqlTypeName.GEOMETRY);
    rule.add(SqlTypeName.CHAR);
    rule.add(SqlTypeName.VARCHAR);
    rules.add(SqlTypeName.GEOMETRY, rule);

    // ARRAY is assignable from ...
    rules.add(SqlTypeName.ARRAY, EnumSet.of(SqlTypeName.ARRAY));

    // MAP is assignable from ...
    rules.add(SqlTypeName.MAP, EnumSet.of(SqlTypeName.MAP));

    // SYMBOL is assignable from ...
    rules.add(SqlTypeName.SYMBOL, EnumSet.of(SqlTypeName.SYMBOL));

    // UUID is assignable from
    rules.add(SqlTypeName.UUID, EnumSet.of(SqlTypeName.UUID));

    // ANY is assignable from ...
    rule.clear();
    rule.add(SqlTypeName.TINYINT);
    rule.add(SqlTypeName.SMALLINT);
    rule.add(SqlTypeName.INTEGER);
    rule.add(SqlTypeName.BIGINT);
    rule.add(SqlTypeName.DECIMAL);
    rule.add(SqlTypeName.FLOAT);
    rule.add(SqlTypeName.DOUBLE);
    rule.add(SqlTypeName.REAL);
    rule.add(SqlTypeName.TIME);
    rule.add(SqlTypeName.DATE);
    rule.add(SqlTypeName.TIMESTAMP);
    rules.add(SqlTypeName.ANY, rule);

    INSTANCE = new SqlTypeAssignmentRule(rules.map);
  }