com.facebook.presto.common.type

Class Decimals

java.lang.Object

com.facebook.presto.common.type.Decimals

public final class Decimals
extends Object

Field Summary

Fields

Modifier and Type	Field and Description
static BigInteger	MAX_DECIMAL_UNSCALED_VALUE
static int	MAX_PRECISION
static int	MAX_SHORT_PRECISION
static BigInteger	MIN_DECIMAL_UNSCALED_VALUE

Method Summary

Modifier and Type	Method and Description
static BigInteger	bigIntegerTenToNth(int n)
static BigInteger	decodeUnscaledValue(io.airlift.slice.Slice valueSlice)
static io.airlift.slice.Slice	encodeScaledValue(BigDecimal value) Converts BigDecimal to Slice representing it for long DecimalType.
static io.airlift.slice.Slice	encodeScaledValue(BigDecimal value, int scale)
static long	encodeShortScaledValue(BigDecimal value, int scale)
static io.airlift.slice.Slice	encodeUnscaledValue(BigInteger unscaledValue)
static io.airlift.slice.Slice	encodeUnscaledValue(long unscaledValue)
static boolean	isLongDecimal(Type type)
static boolean	isShortDecimal(Type type)
static long	longTenToNth(int n)
static boolean	overflows(BigDecimal value, long precision)
static boolean	overflows(BigInteger value)
static boolean	overflows(BigInteger value, int precision)
static boolean	overflows(long value, int precision)
static DecimalParseResult	parse(String stringValue)
static DecimalParseResult	parseIncludeLeadingZerosInPrecision(String stringValue)
static BigDecimal	readBigDecimal(DecimalType type, Block block, int position)
static BigDecimal	rescale(BigDecimal value, DecimalType type)
static BigInteger	rescale(BigInteger value, int fromScale, int toScale)
static long	rescale(long value, int fromScale, int toScale)
static String	toString(BigInteger unscaledValue, int scale)
static String	toString(long unscaledValue, int scale)
static String	toString(io.airlift.slice.Slice unscaledValue, int scale)
static void	writeBigDecimal(DecimalType decimalType, BlockBuilder blockBuilder, BigDecimal value)
static void	writeShortDecimal(BlockBuilder blockBuilder, long value)

Methods inherited from class java.lang.Object

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

Field Detail

MAX_PRECISION

public static final int MAX_PRECISION

See Also:

Constant Field Values

MAX_SHORT_PRECISION

public static final int MAX_SHORT_PRECISION

See Also:

Constant Field Values

MAX_DECIMAL_UNSCALED_VALUE

public static final BigInteger MAX_DECIMAL_UNSCALED_VALUE

MIN_DECIMAL_UNSCALED_VALUE

public static final BigInteger MIN_DECIMAL_UNSCALED_VALUE

Method Detail

longTenToNth

public static long longTenToNth(int n)

bigIntegerTenToNth

public static BigInteger bigIntegerTenToNth(int n)

parse

public static DecimalParseResult parse(String stringValue)

parseIncludeLeadingZerosInPrecision

public static DecimalParseResult parseIncludeLeadingZerosInPrecision(String stringValue)

encodeUnscaledValue

public static io.airlift.slice.Slice encodeUnscaledValue(BigInteger unscaledValue)

encodeUnscaledValue

public static io.airlift.slice.Slice encodeUnscaledValue(long unscaledValue)

encodeShortScaledValue

public static long encodeShortScaledValue(BigDecimal value,
                                          int scale)

encodeScaledValue

public static io.airlift.slice.Slice encodeScaledValue(BigDecimal value,
                                                       int scale)

encodeScaledValue

public static io.airlift.slice.Slice encodeScaledValue(BigDecimal value)

Converts BigDecimal to Slice representing it for long DecimalType. It is caller responsibility to ensure that value.scale() equals to DecimalType.getScale().

decodeUnscaledValue

public static BigInteger decodeUnscaledValue(io.airlift.slice.Slice valueSlice)

toString

public static String toString(long unscaledValue,
                              int scale)

toString

public static String toString(io.airlift.slice.Slice unscaledValue,
                              int scale)

toString

public static String toString(BigInteger unscaledValue,
                              int scale)

overflows

public static boolean overflows(long value,
                                int precision)

overflows

public static boolean overflows(BigInteger value,
                                int precision)

overflows

public static boolean overflows(BigInteger value)

overflows

public static boolean overflows(BigDecimal value,
                                long precision)

readBigDecimal

public static BigDecimal readBigDecimal(DecimalType type,
                                        Block block,
                                        int position)

writeBigDecimal

public static void writeBigDecimal(DecimalType decimalType,
                                   BlockBuilder blockBuilder,
                                   BigDecimal value)

rescale

public static BigDecimal rescale(BigDecimal value,
                                 DecimalType type)

writeShortDecimal

public static void writeShortDecimal(BlockBuilder blockBuilder,
                                     long value)

rescale

public static long rescale(long value,
                           int fromScale,
                           int toScale)

rescale

public static BigInteger rescale(BigInteger value,
                                 int fromScale,
                                 int toScale)

isShortDecimal

public static boolean isShortDecimal(Type type)

isLongDecimal

public static boolean isLongDecimal(Type type)