org.h2.value

Class ValueUuid

java.lang.Object

org.h2.value.VersionedValue

org.h2.value.Value

org.h2.value.ValueUuid

public class ValueUuid
extends Value

Implementation of the UUID data type.

Field Summary

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, LONG, MIN_LONG_DECIMAL, NULL, RESULT_SET, ROW, SHORT, STRING, STRING_FIXED, STRING_IGNORECASE, TIME, 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
int	compareTypeSafe(Value o, CompareMode mode) 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.Object	getObject() Get the value as an object.
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()
void	set(java.sql.PreparedStatement prep, int parameterIndex) Set the value as a parameter in a prepared statement.

Methods inherited from class org.h2.value.Value

add, checkPrecision, clearCache, compareTo, compareWithNull, containsNull, convertPrecision, convertScale, convertTo, convertTo, convertTo, convertTo, convertToInt, copy, copyToResult, copyToTemp, divide, getBigDecimal, getBoolean, getByte, getBytesNoCopy, getDataHandler, getDate, getDouble, getFloat, getHigherOrder, getHigherType, getInputStream, getInputStream, getInt, getLong, getReader, getReader, getResult, getShort, getSignum, getSmall, getSQL, getTableId, getTime, getTimestamp, getTraceSQL, getUnsupportedExceptionForOperation, isLinkedToTable, modulus, multiply, negate, remove, 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

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 (must be at least 16 bytes long)

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)

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

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

compareTypeSafe

public int compareTypeSafe(Value o,
                  CompareMode mode)

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

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

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

getBytes

public byte[] getBytes()

Overrides:

getBytes in class Value

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

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