Package org.h2.value

Class ValueDouble

java.lang.Object

org.h2.value.VersionedValue<Value>

org.h2.value.Value

org.h2.value.ValueDouble

All Implemented Interfaces:

HasSQL, Typed

public final class ValueDouble
extends Value

Implementation of the DOUBLE PRECISION data type.

Field Summary

Fields

Modifier and Type	Field	Description
static int	DECIMAL_PRECISION	The approximate precision in decimal digits.
static int	DISPLAY_SIZE	The maximum display size of a DOUBLE.
private static ValueDouble	NAN
static ValueDouble	ONE	The value 1.
(package private) static int	PRECISION	The precision in bits.
private double	value
static ValueDouble	ZERO	The value 0.
static long	ZERO_BITS	Double.doubleToLongBits(0d)

Fields inherited from class org.h2.value.Value

ARRAY, ASSIGN_TO, BIGINT, BINARY, BLOB, BOOLEAN, CAST_TO, CHAR, CLOB, CONVERT_TO, DATE, DECFLOAT, DOUBLE, EMPTY_VALUES, ENUM, GEOMETRY, GROUP_BINARY_STRING, GROUP_BOOLEAN, GROUP_CHARACTER_STRING, GROUP_COLLECTION, GROUP_DATETIME, GROUP_INTERVAL_DT, GROUP_INTERVAL_YM, GROUP_NULL, GROUP_NUMERIC, GROUP_OTHER, GROUPS, INTEGER, INTERVAL_DAY, INTERVAL_DAY_TO_HOUR, INTERVAL_DAY_TO_MINUTE, INTERVAL_DAY_TO_SECOND, INTERVAL_HOUR, INTERVAL_HOUR_TO_MINUTE, INTERVAL_HOUR_TO_SECOND, INTERVAL_MINUTE, INTERVAL_MINUTE_TO_SECOND, INTERVAL_MONTH, INTERVAL_SECOND, INTERVAL_YEAR, INTERVAL_YEAR_TO_MONTH, JAVA_OBJECT, JSON, MAX_LONG_DECIMAL, MIN_LONG_DECIMAL, NULL, NUMERIC, REAL, ROW, SMALLINT, TIME, TIME_TZ, TIMESTAMP, TIMESTAMP_TZ, TINYINT, TYPE_COUNT, UNKNOWN, UUID, VARBINARY, VARCHAR, VARCHAR_IGNORECASE

Fields inherited from interface org.h2.util.HasSQL

ADD_PLAN_INFORMATION, DEFAULT_SQL_FLAGS, NO_CASTS, QUOTE_ONLY_WHEN_REQUIRED, REPLACE_LOBS_FOR_TRACE, TRACE_SQL_FLAGS

Constructor Summary

Constructors

Modifier	Constructor	Description
private	ValueDouble(double value)

Method Summary

Modifier and Type	Method	Description
Value	add(Value v)	Add a value and return the result.
int	compareTypeSafe(Value o, CompareMode mode, CastDataProvider provider)	Compare this value against another value given that the values are of the same data type.
Value	divide(Value v, TypeInfo quotientType)	Divide by a value and return the result.
boolean	equals(java.lang.Object other)	Check if the two values have the same hash code.
static ValueDouble	get(double d)	Get or create a DOUBLE PRECISION value for the given double.
java.math.BigDecimal	getBigDecimal()
double	getDouble()	Returns this value as a Java double value.
float	getFloat()	Returns this value as a Java float value.
int	getSignum()
private java.lang.StringBuilder	getSQL(java.lang.StringBuilder builder)
java.lang.StringBuilder	getSQL(java.lang.StringBuilder builder, int sqlFlags)	Appends the SQL statement of this object to the specified builder.
java.lang.String	getString()	Get the value as a string.
TypeInfo	getType()	Returns the data type.
int	getValueType()	Get the value type.
int	hashCode()
ValueDouble	modulus(Value v)	Take the modulus with a value and return the result.
Value	multiply(Value v)	Multiply with a value and return the result.
Value	negate()	Return -value if this value support arithmetic operations.
Value	subtract(Value v)	Subtract a value and return the result.

Methods inherited from class org.h2.value.Value

cache, castTo, charLength, clearCache, compareTo, compareWithNull, containsNull, convertForAssignTo, convertTo, convertTo, convertTo, convertTo, convertTo, convertToAnyArray, convertToAnyRow, convertToBigint, convertToBoolean, convertToChar, convertToDate, convertToDouble, convertToEnum, convertToGeometry, convertToInt, convertToInt, convertToJavaObject, convertToReal, convertToSmallint, convertToTinyint, convertToUuid, getBoolean, getByte, getBytes, getBytesNoCopy, getDataConversionError, getDataConversionError, getHigherOrder, getHigherOrderKnown, getInputStream, getInputStream, getInt, getLong, getMemory, getReader, getReader, getShort, getTypeName, getUnsupportedExceptionForOperation, getValueTooLongException, isFalse, isTrue, octetLength, rangeCheck, toString

Methods inherited from class org.h2.value.VersionedValue

getCommittedValue, getCurrentValue, getOperationId, isCommitted

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.h2.util.HasSQL

getSQL, getTraceSQL

Field Detail

PRECISION

static final int PRECISION

The precision in bits.

See Also:

Constant Field Values

DECIMAL_PRECISION

public static final int DECIMAL_PRECISION

The approximate precision in decimal digits.

See Also:

Constant Field Values

DISPLAY_SIZE

public static final int DISPLAY_SIZE

The maximum display size of a DOUBLE. Example: -3.3333333333333334E-100

See Also:

Constant Field Values

ZERO_BITS

public static final long ZERO_BITS

Double.doubleToLongBits(0d)

See Also:

Constant Field Values

ZERO

public static final ValueDouble ZERO

The value 0.

ONE

public static final ValueDouble ONE

The value 1.

NAN

private static final ValueDouble NAN

value

private final double value

Constructor Detail

ValueDouble

private ValueDouble(double value)

Method Detail

add

public Value add(Value v)

Description copied from class: Value

Add a value and return the result.

Overrides:

add in class Value

Parameters:

v - the value to add

Returns:

the result

subtract

public Value subtract(Value v)

Description copied from class: Value

Subtract a value and return the result.

Overrides:

subtract in class Value

Parameters:

v - the value to subtract

Returns:

the result

negate

public Value negate()

Description copied from class: Value

Return -value if this value support arithmetic operations.

Overrides:

negate in class Value

Returns:

the negative

multiply

public Value multiply(Value v)

Description copied from class: Value

Multiply with a value and return the result.

Overrides:

multiply in class Value

Parameters:

v - the value to multiply with

Returns:

the result

divide

public Value divide(Value v,
                    TypeInfo quotientType)

Description copied from class: Value

Divide by a value and return the result.

Overrides:

divide in class Value

Parameters:

v - the divisor

quotientType - the type of quotient (used only to read precision and scale when applicable)

Returns:

the result

modulus

public ValueDouble modulus(Value v)

Description copied from class: Value

Take the modulus with a value and return the result.

Overrides:

modulus in class Value

Parameters:

v - the value to take the modulus with

Returns:

the result

getSQL

public java.lang.StringBuilder getSQL(java.lang.StringBuilder builder,
                                      int sqlFlags)

Description copied from interface: HasSQL

Appends the SQL statement of this object to the specified builder.

Parameters:

builder - string builder

sqlFlags - formatting flags

Returns:

the specified string builder

getSQL

private java.lang.StringBuilder getSQL(java.lang.StringBuilder builder)

getType

public TypeInfo getType()

Description copied from interface: Typed

Returns the data type.

Specified by:

getType in interface Typed

Specified by:

getType in class Value

Returns:

the data type

getValueType

public int getValueType()

Description copied from class: Value

Get the value type.

Specified by:

getValueType in class Value

Returns:

the value type

compareTypeSafe

public int compareTypeSafe(Value o,
                           CompareMode mode,
                           CastDataProvider provider)

Description copied from class: Value

Compare this value against another value given that the values are of the same data type.

Specified by:

compareTypeSafe in class Value

Parameters:

o - the other value

mode - the compare mode

provider - the cast information provider

Returns:

0 if both values are equal, -1 if the other value is smaller, and 1 otherwise

getSignum

public int getSignum()

Overrides:

getSignum in class Value

getBigDecimal

public java.math.BigDecimal getBigDecimal()

Overrides:

getBigDecimal in class Value

getFloat

public float getFloat()

Description copied from class: Value

Returns this value as a Java float value.

Overrides:

getFloat in class Value

Returns:

value

getDouble

public double getDouble()

Description copied from class: Value

Returns this value as a Java double value.

Overrides:

getDouble in class Value

Returns:

value

getString

public java.lang.String getString()

Description copied from class: Value

Get the value as a string.

Specified by:

getString in class Value

Returns:

the string

hashCode

public int hashCode()

Specified by:

hashCode in class Value

get

public static ValueDouble get(double d)

Get or create a DOUBLE PRECISION value for the given double.

Parameters:

d - the double

Returns:

the value

equals

public boolean equals(java.lang.Object other)

Description copied from class: Value

Check if the two values have the same hash code. No data conversion is made; this method returns false if the other object is not of the same class. For some values, compareTo may return 0 even if equals return false. Example: ValueDecimal 0.0 and 0.00.

Specified by:

equals in class Value

Parameters:

other - the other value

Returns:

true if they are equal