Package org.h2.value

Class ValueUuid

java.lang.Object

org.h2.value.VersionedValue<Value>

org.h2.value.Value

org.h2.value.ValueUuid

All Implemented Interfaces:

HasSQL, Typed

public final class ValueUuid
extends Value

Implementation of the UUID data type.

Field Summary

Fields

Modifier and Type	Field	Description
(package private) static int	DISPLAY_SIZE	The display size of the textual representation of a UUID.
private long	high
private long	low
(package private) static int	PRECISION	The precision of this value in number of bytes.

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	ValueUuid(long high, long low)

Method Summary

Modifier and Type	Method	Description
private java.lang.StringBuilder	addString(java.lang.StringBuilder builder)
long	charLength()	Returns length of this value in characters.
int	compareTypeSafe(Value o, CompareMode mode, CastDataProvider provider)	Compare this value against another value given that the values are of the same data type.
boolean	equals(java.lang.Object other)	Check if the two values have the same hash code.
static ValueUuid	get(byte[] binary)	Get or create a UUID for the given 16 bytes.
static ValueUuid	get(long high, long low)	Get or create a UUID for the given high and low order values.
static ValueUuid	get(java.lang.String s)	Get or create a UUID for the given text representation.
static ValueUuid	get(java.util.UUID uuid)	Get or create a UUID for the given Java UUID.
byte[]	getBytes()
long	getHigh()	Get the most significant 64 bits of this UUID.
long	getLow()	Get the least significant 64 bits of this UUID.
int	getMemory()	Get the memory used by this object.
static ValueUuid	getNewRandom()	Create a new UUID using the pseudo random number generator.
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.
java.util.UUID	getUuid()	Returns the UUID.
int	getValueType()	Get the value type.
int	hashCode()
long	octetLength()	Returns length of this value in bytes.

Methods inherited from class org.h2.value.Value

add, cache, castTo, 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, divide, getBigDecimal, getBoolean, getByte, getBytesNoCopy, getDataConversionError, getDataConversionError, getDouble, getFloat, getHigherOrder, getHigherOrderKnown, getInputStream, getInputStream, getInt, getLong, getReader, getReader, getShort, getSignum, getTypeName, getUnsupportedExceptionForOperation, getValueTooLongException, isFalse, isTrue, modulus, multiply, negate, rangeCheck, subtract, 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 of this value in number of bytes.

See Also:

Constant Field Values

DISPLAY_SIZE

static final int DISPLAY_SIZE

The display size of the textual representation of a UUID. Example: cd38d882-7ada-4589-b5fb-7da0ca559d9a

See Also:

Constant Field Values

high

private final long high

low

private final long low

Constructor Detail

ValueUuid

private ValueUuid(long high,
                  long low)

Method Detail

hashCode

public int hashCode()

Specified by:

hashCode in class Value

getNewRandom

public static ValueUuid getNewRandom()

Create a new UUID using the pseudo random number generator.

Returns:

the new UUID

get

public static ValueUuid get(byte[] binary)

Get or create a UUID for the given 16 bytes.

Parameters:

binary - the byte array

Returns:

the UUID

get

public static ValueUuid get(long high,
                            long low)

Get or create a UUID for the given high and low order values.

Parameters:

high - the most significant bits

low - the least significant bits

Returns:

the UUID

get

public static ValueUuid get(java.util.UUID uuid)

Get or create a UUID for the given Java UUID.

Parameters:

uuid - Java UUID

Returns:

the UUID

get

public static ValueUuid get(java.lang.String s)

Get or create a UUID for the given text representation.

Parameters:

s - the text representation of the UUID

Returns:

the UUID

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

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

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

getValueType

public int getValueType()

Description copied from class: Value

Get the value type.

Specified by:

getValueType in class Value

Returns:

the value type

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

getBytes

public byte[] getBytes()

Overrides:

getBytes in class Value

addString

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

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

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

getUuid

public java.util.UUID getUuid()

Returns the UUID.

Returns:

the UUID

getHigh

public long getHigh()

Get the most significant 64 bits of this UUID.

Returns:

the high order bits

getLow

public long getLow()

Get the least significant 64 bits of this UUID.

Returns:

the low order bits

charLength

public long charLength()

Description copied from class: Value

Returns length of this value in characters.

Overrides:

charLength in class Value

Returns:

length of this value in characters

octetLength

public long octetLength()

Description copied from class: Value

Returns length of this value in bytes.

Overrides:

octetLength in class Value

Returns:

length of this value in bytes