org.apache.paimon.utils

Class BinaryStringUtils

java.lang.Object

org.apache.paimon.utils.BinaryStringUtils

public class BinaryStringUtils
extends Object

Util for BinaryString.

Field Summary

Fields

Modifier and Type	Field and Description
static BinaryString[]	EMPTY_STRING_ARRAY
static BinaryString	FALSE_STRING
static BinaryString	NULL_STRING
static BinaryString	TRUE_STRING

Constructor Summary

Constructors

Constructor and Description
BinaryStringUtils()

Method Summary

Modifier and Type	Method and Description
static byte[]	toBinaryString(byte[] byteArrayTerm, DataType type)
static boolean	toBoolean(BinaryString str) Parse a BinaryString to boolean.
static byte	toByte(BinaryString str)
static BinaryString	toCharacterString(BinaryString strData, DataType type)
static int	toDate(BinaryString input)
static double	toDouble(BinaryString str)
static float	toFloat(BinaryString str)
static int	toInt(BinaryString str) Parses this BinaryString to Int.
static long	toLong(BinaryString str) Parses this BinaryString to Long.
static short	toShort(BinaryString str)
static int	toTime(BinaryString input)
static Timestamp	toTimestamp(BinaryString input, int precision) Used by CAST(x as TIMESTAMP).
static Timestamp	toTimestamp(BinaryString input, int precision, TimeZone timeZone) Used by CAST(x as TIMESTAMP_LTZ).

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

NULL_STRING

public static final BinaryString NULL_STRING

TRUE_STRING

public static final BinaryString TRUE_STRING

FALSE_STRING

public static final BinaryString FALSE_STRING

EMPTY_STRING_ARRAY

public static final BinaryString[] EMPTY_STRING_ARRAY

Constructor Detail

BinaryStringUtils

public BinaryStringUtils()

Method Detail

toBoolean

public static boolean toBoolean(BinaryString str)

Parse a BinaryString to boolean.

toLong

public static long toLong(BinaryString str)
                   throws NumberFormatException

Parses this BinaryString to Long.

Note that, in this method we accumulate the result in negative format, and convert it to positive format at the end, if this string is not started with '-'. This is because min value is bigger than max value in digits, e.g. Long.MAX_VALUE is '9223372036854775807' and Long.MIN_VALUE is '-9223372036854775808'.

This code is mostly copied from LazyLong.parseLong in Hive.

Throws:

NumberFormatException

toInt

public static int toInt(BinaryString str)
                 throws NumberFormatException

Parses this BinaryString to Int.

Note that, in this method we accumulate the result in negative format, and convert it to positive format at the end, if this string is not started with '-'. This is because min value is bigger than max value in digits, e.g. Integer.MAX_VALUE is '2147483647' and Integer.MIN_VALUE is '-2147483648'.

This code is mostly copied from LazyInt.parseInt in Hive.

Note that, this method is almost same as `toLong`, but we leave it duplicated for performance reasons, like Hive does.

Throws:

NumberFormatException

toShort

public static short toShort(BinaryString str)
                     throws NumberFormatException

Throws:

NumberFormatException

toByte

public static byte toByte(BinaryString str)
                   throws NumberFormatException

Throws:

NumberFormatException

toDouble

public static double toDouble(BinaryString str)
                       throws NumberFormatException

Throws:

NumberFormatException

toFloat

public static float toFloat(BinaryString str)
                     throws NumberFormatException

Throws:

NumberFormatException

toDate

public static int toDate(BinaryString input)
                  throws java.time.DateTimeException

Throws:

java.time.DateTimeException

toTime

public static int toTime(BinaryString input)
                  throws java.time.DateTimeException

Throws:

java.time.DateTimeException

toTimestamp

public static Timestamp toTimestamp(BinaryString input,
                                    int precision)
                             throws java.time.DateTimeException

Used by CAST(x as TIMESTAMP).

Throws:

java.time.DateTimeException

toTimestamp

public static Timestamp toTimestamp(BinaryString input,
                                    int precision,
                                    TimeZone timeZone)
                             throws java.time.DateTimeException

Used by CAST(x as TIMESTAMP_LTZ).

Throws:

java.time.DateTimeException

toCharacterString

public static BinaryString toCharacterString(BinaryString strData,
                                             DataType type)

toBinaryString

public static byte[] toBinaryString(byte[] byteArrayTerm,
                                    DataType type)