Package org.h2.value

Class ValueEnumBase

java.lang.Object

org.h2.value.VersionedValue<Value>

org.h2.value.Value

org.h2.value.ValueEnumBase

All Implemented Interfaces:

HasSQL, Typed

Direct Known Subclasses:

ValueEnum

public class ValueEnumBase
extends Value

Base implementation of the ENUM data type. This base implementation is only used in 2.0.* clients when they work with 1.4.* servers.

Field Summary

Fields

Modifier and Type	Field	Description
(package private) java.lang.String	label
private int	ordinal

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
protected	ValueEnumBase(java.lang.String label, int ordinal)

Method Summary

Modifier and Type	Method	Description
Value	add(Value v)	Add a value and return the result.
int	compareTypeSafe(Value v, 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 ValueEnumBase	get(java.lang.String label, int ordinal)	Get or create an enum value with the given label and ordinal.
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	getInt()	Returns this value as a Java int value.
long	getLong()	Returns this value as a Java long value.
int	getMemory()	Get the memory used by this object.
int	getSignum()
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()
Value	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	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, getReader, getReader, getShort, getTypeName, getUnsupportedExceptionForOperation, getValueTooLongException, isFalse, isTrue, negate, 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

label

final java.lang.String label

ordinal

private final int ordinal

Constructor Detail

ValueEnumBase

protected ValueEnumBase(java.lang.String label,
                        int ordinal)

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

compareTypeSafe

public int compareTypeSafe(Value v,
                           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:

v - 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

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

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

get

public static ValueEnumBase get(java.lang.String label,
                                int ordinal)

Get or create an enum value with the given label and ordinal.

Parameters:

label - the label

ordinal - the ordinal

Returns:

the value

getInt

public int getInt()

Description copied from class: Value

Returns this value as a Java int value.

Overrides:

getInt in class Value

Returns:

value

getLong

public long getLong()

Description copied from class: Value

Returns this value as a Java long value.

Overrides:

getLong in class Value

Returns:

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

getSignum

public int getSignum()

Overrides:

getSignum in class Value

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

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

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

getMemory

public int getMemory()

Description copied from class: Value

Get the memory used by this object.

Overrides:

getMemory in class Value

Returns:

the memory used in bytes

hashCode

public int hashCode()

Specified by:

hashCode in class Value

modulus

public Value 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

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

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