Top Description Fields Constructors Methods
org.h2.value

public final Class ValueReal

extends Value
Class Inheritance
Imports
java.math.BigDecimal, org.h2.api.ErrorCode, org.h2.engine.CastDataProvider, org.h2.message.DbException
Implementation of the REAL data type.

Field Summary

Modifier and TypeField and Description
pack-priv static final int
DECIMAL_PRECISION

The approximate precision in decimal digits.

pack-priv static final int
DISPLAY_SIZE

The maximum display size of a REAL.

private static final ValueReal
NAN

public static final ValueReal
ONE

The value 1.

pack-priv static final int
PRECISION

The precision in bits.

private final float
value

public static final ValueReal
ZERO

The value 0.

public static final int
ZERO_BITS

Float.floatToIntBits(0f).

Inherited from org.h2.value.Value:
ARRAYASSIGN_TOBIGINTBINARYBLOBBOOLEANCAST_TOCHARCLOBCONVERT_TODATEDECFLOATDOUBLEEMPTY_VALUESENUMGEOMETRYGROUP_BINARY_STRINGGROUP_BOOLEANGROUP_CHARACTER_STRINGGROUP_COLLECTIONGROUP_DATETIMEGROUP_INTERVAL_DTGROUP_INTERVAL_YMGROUP_NULLGROUP_NUMERICGROUP_OTHERGROUPSINTEGERINTERVAL_DAYINTERVAL_DAY_TO_HOURINTERVAL_DAY_TO_MINUTEINTERVAL_DAY_TO_SECONDINTERVAL_HOURINTERVAL_HOUR_TO_MINUTEINTERVAL_HOUR_TO_SECONDINTERVAL_MINUTEINTERVAL_MINUTE_TO_SECONDINTERVAL_MONTHINTERVAL_SECONDINTERVAL_YEARINTERVAL_YEAR_TO_MONTHJAVA_OBJECTJSONMAX_LONG_DECIMALMIN_LONG_DECIMALNULLNUMERICREALROWSMALLINTTIMETIME_TZTIMESTAMPTIMESTAMP_TZTINYINTTYPE_COUNTUNKNOWNUUIDVARBINARYVARCHARVARCHAR_IGNORECASE

Constructor Summary

AccessConstructor and Description
private
ValueReal(float value)

Method Summary

Modifier and TypeMethod and Description
public Value
add(Value
the value to add
v)

Overrides org.h2.value.Value.add.

Add a value and return the result.

public int
compareTypeSafe(Value
the other value
o, CompareMode
the compare mode
mode, CastDataProvider
the cast information provider
provider)

Implements abstract org.h2.value.Value.compareTypeSafe.

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

public Value
divide(Value
the divisor
v, TypeInfo
the type of quotient (used only to read precision and scale when applicable)
quotientType)

Overrides org.h2.value.Value.divide.

Divide by a value and return the result.

public boolean
equals(Object
the other value
other)

Implements abstract org.h2.value.Value.equals.

Check if the two values have the same hash code.

public static ValueReal

Returns:

the value
get(float
the float
d)

Get or create a REAL value for the given float.

public BigDecimal
getBigDecimal()

Overrides org.h2.value.Value.getBigDecimal.

public double
getDouble()

Overrides org.h2.value.Value.getDouble.

Returns this value as a Java double value.

public float
getFloat()

Overrides org.h2.value.Value.getFloat.

Returns this value as a Java float value.

public int
getSignum()

Overrides org.h2.value.Value.getSignum.

public StringBuilder
getSQL(StringBuilder
string builder
builder, int
formatting flags
sqlFlags)

Implements org.h2.util.HasSQL.getSQL.

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

private StringBuilder
getSQL(StringBuilder builder)

public String
getString()

Implements abstract org.h2.value.Value.getString.

Get the value as a string.

public TypeInfo
getType()

Implements abstract org.h2.value.Value.getType.

Implements org.h2.value.Typed.getType.

Returns the data type.

public int
getValueType()

Implements abstract org.h2.value.Value.getValueType.

Get the value type.

public int
hashCode()

Implements abstract org.h2.value.Value.hashCode.

Returns a hash code value for this object.

public Value
modulus(Value
the value to take the modulus with
v)

Overrides org.h2.value.Value.modulus.

Take the modulus with a value and return the result.

public Value
multiply(Value
the value to multiply with
v)

Overrides org.h2.value.Value.multiply.

Multiply with a value and return the result.

public Value
negate()

Overrides org.h2.value.Value.negate.

Return -value if this value support arithmetic operations.

public Value
subtract(Value
the value to subtract
v)

Overrides org.h2.value.Value.subtract.

Subtract a value and return the result.

Inherited from org.h2.value.Value:
cachecastTocharLengthclearCachecompareTocompareWithNullcontainsNullconvertForAssignToconvertToconvertToconvertToconvertToconvertToconvertToAnyArrayconvertToAnyJsonconvertToAnyRowconvertToBigintconvertToBooleanconvertToCharconvertToDateconvertToDoubleconvertToEnumconvertToGeometryconvertToIntconvertToIntconvertToJavaObjectconvertToJsonconvertToLongconvertToRealconvertToSmallintconvertToTinyintconvertToUuidgetBooleangetBytegetBytesgetBytesNoCopygetDataConversionErrorgetDataConversionErrorgetHigherOrdergetHigherOrderKnowngetInputStreamgetInputStreamgetIntgetLonggetMemorygetReadergetReadergetShortgetTypeNamegetUnsupportedExceptionForOperationgetValueTooLongExceptiongetValueWithFirstNullgetValueWithFirstNullImplisFalseisTrueoctetLengthrangeChecktoString

Field Detail

DECIMAL_PRECISIONback to summary
pack-priv static final int DECIMAL_PRECISION

The approximate precision in decimal digits.

DISPLAY_SIZEback to summary
pack-priv static final int DISPLAY_SIZE

The maximum display size of a REAL. Example: -1.12345676E-20

NANback to summary
private static final ValueReal NAN
ONEback to summary
public static final ValueReal ONE

The value 1.

PRECISIONback to summary
pack-priv static final int PRECISION

The precision in bits.

valueback to summary
private final float value
ZEROback to summary
public static final ValueReal ZERO

The value 0.

ZERO_BITSback to summary
public static final int ZERO_BITS

Float.floatToIntBits(0f).

Constructor Detail

ValueRealback to summary
private ValueReal(float value)

Method Detail

addback to summary
public Value add(Value v)

Overrides org.h2.value.Value.add.

Doc from org.h2.value.Value.add.

Add a value and return the result.

Parameters
v:Value

the value to add

Returns:Value

the result

Annotations
@Override
compareTypeSafeback to summary
public int compareTypeSafe(Value o, CompareMode mode, CastDataProvider provider)

Implements abstract org.h2.value.Value.compareTypeSafe.

Doc from org.h2.value.Value.compareTypeSafe.

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

Parameters
o:Value

the other value

mode:CompareMode

the compare mode

provider:CastDataProvider

the cast information provider

Returns:int

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

Annotations
@Override
divideback to summary
public Value divide(Value v, TypeInfo quotientType)

Overrides org.h2.value.Value.divide.

Doc from org.h2.value.Value.divide.

Divide by a value and return the result.

Parameters
v:Value

the divisor

quotientType:TypeInfo

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

Returns:Value

the result

Annotations
@Override
equalsback to summary
public boolean equals(Object other)

Implements abstract org.h2.value.Value.equals.

Doc from org.h2.value.Value.equals.

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.

Parameters
other:Object

the other value

Returns:boolean

true if they are equal

Annotations
@Override
getback to summary
public static ValueReal get(float d)

Get or create a REAL value for the given float.

Parameters
d:float

the float

Returns:ValueReal

the value

getBigDecimalback to summary
public BigDecimal getBigDecimal()

Overrides org.h2.value.Value.getBigDecimal.

Annotations
@Override
getDoubleback to summary
public double getDouble()

Overrides org.h2.value.Value.getDouble.

Doc from org.h2.value.Value.getDouble.

Returns this value as a Java double value.

Returns:double

value

Annotations
@Override
getFloatback to summary
public float getFloat()

Overrides org.h2.value.Value.getFloat.

Doc from org.h2.value.Value.getFloat.

Returns this value as a Java float value.

Returns:float

value

Annotations
@Override
getSignumback to summary
public int getSignum()

Overrides org.h2.value.Value.getSignum.

Annotations
@Override
getSQLback to summary
public StringBuilder getSQL(StringBuilder builder, int sqlFlags)

Implements org.h2.util.HasSQL.getSQL.

Doc from org.h2.util.HasSQL.getSQL.

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

Parameters
builder:StringBuilder

string builder

sqlFlags:int

formatting flags

Returns:StringBuilder

the specified string builder

Annotations
@Override
getSQLback to summary
private StringBuilder getSQL(StringBuilder builder)
getStringback to summary
public String getString()

Implements abstract org.h2.value.Value.getString.

Doc from org.h2.value.Value.getString.

Get the value as a string.

Returns:String

the string

Annotations
@Override
getTypeback to summary
public TypeInfo getType()

Implements abstract org.h2.value.Value.getType.

Implements org.h2.value.Typed.getType.

Doc from org.h2.value.Typed.getType.

Returns the data type.

Returns:TypeInfo

the data type

Annotations
@Override
getValueTypeback to summary
public int getValueType()

Implements abstract org.h2.value.Value.getValueType.

Doc from org.h2.value.Value.getValueType.

Get the value type.

Returns:int

the value type

Annotations
@Override
hashCodeback to summary
public int hashCode()

Implements abstract org.h2.value.Value.hashCode.

Doc from java.lang.Object.hashCode.

Returns a hash code value for this object. This method is supported for the benefit of hash tables such as those provided by java.util.HashMap.

The general contract of hashCode is:

  • Whenever it is invoked on the same object more than once during an execution of a Java application, the hashCode method must consistently return the same integer, provided no information used in equals comparisons on the object is modified. This integer need not remain consistent from one execution of an application to another execution of the same application.
  • If two objects are equal according to the equals method, then calling the hashCode method on each of the two objects must produce the same integer result.
  • It is not required that if two objects are unequal according to the equals method, then calling the hashCode method on each of the two objects must produce distinct integer results. However, the programmer should be aware that producing distinct integer results for unequal objects may improve the performance of hash tables.
Returns:int

a hash code value for this object

Annotations
@Override
modulusback to summary
public Value modulus(Value v)

Overrides org.h2.value.Value.modulus.

Doc from org.h2.value.Value.modulus.

Take the modulus with a value and return the result.

Parameters
v:Value

the value to take the modulus with

Returns:Value

the result

Annotations
@Override
multiplyback to summary
public Value multiply(Value v)

Overrides org.h2.value.Value.multiply.

Doc from org.h2.value.Value.multiply.

Multiply with a value and return the result.

Parameters
v:Value

the value to multiply with

Returns:Value

the result

Annotations
@Override
negateback to summary
public Value negate()

Overrides org.h2.value.Value.negate.

Doc from org.h2.value.Value.negate.

Return -value if this value support arithmetic operations.

Returns:Value

the negative

Annotations
@Override
subtractback to summary
public Value subtract(Value v)

Overrides org.h2.value.Value.subtract.

Doc from org.h2.value.Value.subtract.

Subtract a value and return the result.

Parameters
v:Value

the value to subtract

Returns:Value

the result

Annotations
@Override