org.h2.value

Class ValueDouble

java.lang.Object

org.h2.value.VersionedValue

org.h2.value.Value

org.h2.value.ValueDouble

public class ValueDouble
extends Value

Implementation of the DOUBLE data type.

Field Summary

Fields

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

Fields inherited from class org.h2.value.Value

ARRAY, BLOB, BOOLEAN, BYTE, BYTES, CLOB, DATE, DECIMAL, DOUBLE, ENUM, FLOAT, GEOMETRY, INT, 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, LONG, MIN_LONG_DECIMAL, NULL, RESULT_SET, ROW, SHORT, STRING, STRING_FIXED, STRING_IGNORECASE, TIME, TIME_TZ, TIMESTAMP, TIMESTAMP_TZ, TYPE_COUNT, UNKNOWN, UUID

Fields inherited from class org.h2.value.VersionedValue

DUMMY

Method Summary

Methods

Modifier and Type	Method and 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) 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 double value for the given double.
java.math.BigDecimal	getBigDecimal()
double	getDouble()
java.lang.Object	getObject() Get the value as an object.
int	getSignum()
java.lang.StringBuilder	getSQL(java.lang.StringBuilder builder) Appends the SQL expression for this value 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.
void	set(java.sql.PreparedStatement prep, int parameterIndex) Set the value as a parameter in a prepared statement.
Value	subtract(Value v) Subtract a value and return the result.

Methods inherited from class org.h2.value.Value

checkPrecision, clearCache, compareTo, compareWithNull, containsNull, convertPrecision, convertScale, convertTo, convertTo, convertTo, convertTo, convertToInt, copy, copyToResult, copyToTemp, getBoolean, getByte, getBytes, getBytesNoCopy, getDataHandler, getDate, getFloat, getHigherOrder, getHigherType, getInputStream, getInputStream, getInt, getLong, getMemory, getReader, getReader, getResult, getShort, getSmall, getSQL, getTableId, getTime, getTimestamp, getTraceSQL, getUnsupportedExceptionForOperation, isLinkedToTable, remove, 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

Field Detail

PRECISION

public static final int PRECISION

The precision in 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.

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)

Description copied from class: Value

Divide by a value and return the result.

Overrides:

divide in class Value

Parameters:

v - the value to divide by

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)

Description copied from class: Value

Appends the SQL expression for this value to the specified builder.

Specified by:

getSQL in class Value

Parameters:

builder - string builder

Returns:

the specified string builder

getType

public TypeInfo getType()

Description copied from class: Value

Returns the data type.

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

getDouble

public double getDouble()

Overrides:

getDouble in class Value

getBigDecimal

public java.math.BigDecimal getBigDecimal()

Overrides:

getBigDecimal in class 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

getObject

public java.lang.Object getObject()

Description copied from class: Value

Get the value as an object.

Specified by:

getObject in class Value

Returns:

the object

set

public void set(java.sql.PreparedStatement prep,
       int parameterIndex)
         throws java.sql.SQLException

Description copied from class: Value

Set the value as a parameter in a prepared statement.

Specified by:

set in class Value

Parameters:

prep - the prepared statement

parameterIndex - the parameter index

Throws:

java.sql.SQLException

get

public static ValueDouble get(double d)

Get or create double 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