org.h2.value

Class ValueUuid

java.lang.Object

org.h2.value.Value

org.h2.value.ValueUuid

public class ValueUuid
extends Value

Implementation of the UUID data type.

Nested Class Summary

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

Value.ValueBlob, Value.ValueClob

Field Summary

Fields inherited from class org.h2.value.Value

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

Method Summary

Methods

Modifier and Type	Method and Description
protected int	compareSecure(Value o, CompareMode mode) Compare the value with another value of the same type.
boolean	equals(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(String s) Get or create a UUID for the given text representation.
byte[]	getBytes()
int	getDisplaySize() Get the display size in characters.
long	getHigh() Get the most significant 64 bits of this UUID.
long	getLow() Get the least significant 64 bits of this UUID.
static ValueUuid	getNewRandom() Create a new UUID using the pseudo random number generator.
Object	getObject() Get the value as an object.
long	getPrecision() Get the precision.
String	getSQL() Get the SQL expression for this value.
String	getString() Get the value as a string.
int	getType() Get the value type.
int	hashCode()
void	set(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, close, compareTo, compareTypeSave, convertPrecision, convertScale, convertTo, copyToTemp, divide, getBigDecimal, getBoolean, getByte, getBytesNoCopy, getDate, getDouble, getFloat, getHigherOrder, getInputStream, getInt, getLong, getMemory, getReader, getResultSet, getScale, getShort, getSignum, getSmall, getTableId, getTime, getTimestamp, getTraceSQL, isFileBased, isLinked, link, modulus, multiply, negate, subtract, throwUnsupportedExceptionForType, toString, unlink

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(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 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

getPrecision

public long getPrecision()

Description copied from class: Value

Get the precision.

Specified by:

getPrecision in class Value

Returns:

the precision

getString

public String getString()

Description copied from class: Value

Get the value as a string.

Specified by:

getString in class Value

Returns:

the string

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

equals

public boolean equals(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 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(PreparedStatement prep,
       int parameterIndex)
         throws 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:

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

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