org.h2.value

Class ValueDouble

java.lang.Object

org.h2.value.Value

org.h2.value.ValueDouble

public class ValueDouble
extends Value

Implementation of the DOUBLE data type.

Nested Class Summary

Nested classes/interfaces inherited from class org.h2.value.Value

Value.ValueBlob, Value.ValueClob

Field Summary

Fields

Modifier and Type	Field and Description
static int	DISPLAY_SIZE The maximum display size of a double.
static int	PRECISION The precision in digits.
static long	ZERO_BITS Double.doubleToLongBits(0.0)

Fields inherited from class org.h2.value.Value

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

Method Summary

Modifier and Type	Method and Description
Value	add(Value v) Add a value and return the result.
protected int	compareSecure(Value o, CompareMode mode) Compare the value with another value of the same 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.
int	getDisplaySize() Get the display size in characters.
double	getDouble()
java.lang.Object	getObject() Get the value as an object.
long	getPrecision() Get the precision.
int	getScale()
int	getSignum()
java.lang.String	getSQL() Get the SQL expression for this value.
java.lang.String	getString() Get the value as a string.
int	getType() 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, compareTypeSafe, convertPrecision, convertScale, convertTo, convertTo, convertTo, convertToEnum, copy, copyToResult, copyToTemp, getBigDecimal, getBoolean, getByte, getBytes, getBytesNoCopy, getDataHandler, getDate, getFloat, getHigherOrder, getInputStream, getInputStream, getInt, getLong, getMemory, getReader, getReader, getResultSet, getShort, getSmall, getTableId, getTime, getTimestamp, getTraceSQL, isLinkedToTable, remove, throwUnsupportedExceptionForType, toString

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(0.0)

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.String getSQL()

Description copied from class: Value

Get the SQL expression for this value.

Specified by:

getSQL in class Value

Returns:

the SQL expression

getType

public int getType()

Description copied from class: Value

Get the value type.

Specified by:

getType in class Value

Returns:

the type

compareSecure

protected int compareSecure(Value o,
                            CompareMode mode)

Description copied from class: Value

Compare the value with another value of the same type.

Specified by:

compareSecure in class Value

Parameters:

o - the other value

mode - the compare mode

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

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

getPrecision

public long getPrecision()

Description copied from class: Value

Get the precision.

Specified by:

getPrecision in class Value

Returns:

the precision

getScale

public int getScale()

Overrides:

getScale in class Value

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

getDisplaySize

public int getDisplaySize()

Description copied from class: Value

Get the display size in characters.

Specified by:

getDisplaySize in class Value

Returns:

the display size

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