Exemplo n.º 1
0
 /**
  * Creates a literal like X'ABAB' from an array of bytes.
  *
  * @param bytes Contents of binary literal
  * @param pos Parser position
  * @return Binary string literal
  */
 public static SqlBinaryStringLiteral createBinaryString(byte[] bytes, SqlParserPos pos) {
   BitString bits;
   try {
     bits = BitString.createFromBytes(bytes);
   } catch (NumberFormatException e) {
     throw SqlUtil.newContextException(pos, RESOURCE.binaryLiteralInvalid());
   }
   return new SqlBinaryStringLiteral(bits, pos);
 }
Exemplo n.º 2
0
  public RelDataType createSqlType(RelDataTypeFactory typeFactory) {
    BitString bitString;
    switch (typeName) {
      case NULL:
      case BOOLEAN:
        RelDataType ret = typeFactory.createSqlType(typeName);
        ret = typeFactory.createTypeWithNullability(ret, null == value);
        return ret;
      case BINARY:
        bitString = (BitString) value;
        int bitCount = bitString.getBitCount();
        return typeFactory.createSqlType(SqlTypeName.BINARY, bitCount / 8);
      case CHAR:
        NlsString string = (NlsString) value;
        Charset charset = string.getCharset();
        if (null == charset) {
          charset = typeFactory.getDefaultCharset();
        }
        SqlCollation collation = string.getCollation();
        if (null == collation) {
          collation = SqlCollation.COERCIBLE;
        }
        RelDataType type = typeFactory.createSqlType(SqlTypeName.CHAR, string.getValue().length());
        type = typeFactory.createTypeWithCharsetAndCollation(type, charset, collation);
        return type;

      case INTERVAL_YEAR_MONTH:
      case INTERVAL_DAY_TIME:
        SqlIntervalLiteral.IntervalValue intervalValue = (SqlIntervalLiteral.IntervalValue) value;
        return typeFactory.createSqlIntervalType(intervalValue.getIntervalQualifier());

      case SYMBOL:
        return typeFactory.createSqlType(SqlTypeName.SYMBOL);

      case INTEGER: // handled in derived class
      case TIME: // handled in derived class
      case VARCHAR: // should never happen
      case VARBINARY: // should never happen

      default:
        throw Util.needToImplement(toString() + ", operand=" + value);
    }
  }