/**
* 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);
}
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);
}
}
