Package org.hibernate.type.descriptor.java

Class UUIDJavaType

java.lang.Object

org.hibernate.type.descriptor.java.AbstractClassJavaType<UUID>

org.hibernate.type.descriptor.java.UUIDJavaType

All Implemented Interfaces:

Serializable, BasicJavaType<UUID>, JavaType<UUID>

public class UUIDJavaType
extends AbstractClassJavaType<UUID>

Descriptor for UUID handling.

See Also:

• MappingSettings.PREFERRED_UUID_JDBC_TYPE
• Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	UUIDJavaType.NoDashesStringTransformer
static class	UUIDJavaType.PassThroughTransformer
static class	UUIDJavaType.ToBytesTransformer
static class	UUIDJavaType.ToStringTransformer
static interface	UUIDJavaType.ValueTransformer

Nested classes/interfaces inherited from interface org.hibernate.type.descriptor.java.JavaType

JavaType.CoercionContext

Field Summary

Fields

Modifier and Type	Field	Description
static final UUIDJavaType	INSTANCE

Constructor Summary

Constructors

Constructor	Description
UUIDJavaType()

Method Summary

Modifier and Type	Method	Description
UUID	fromString(CharSequence string)
long	getDefaultSqlLength(Dialect dialect, JdbcType jdbcType)	The default column length when this Java type is mapped to a SQL data type which is parametrized by length, for example Types.VARCHAR.
JdbcType	getRecommendedJdbcType(JdbcTypeIndicators context)	Obtain the "recommended" SQL type descriptor for this Java type.
boolean	isInstance(Object value)	Is the given value an instance of the described type?
String	toString(UUID value)
<X> X	unwrap(UUID value, Class<X> type, WrapperOptions options)	Unwrap an instance of our handled Java type into the requested type.
boolean	useObjectEqualsHashCode()	Whether to use Object.equals(Object) and Object.hashCode() or JavaType.areEqual(Object, Object) and JavaType.extractHashCode(Object) for objects of this java type.
<X> UUID	wrap(X value, WrapperOptions options)	Wrap a value as our handled Java type.

Methods inherited from class org.hibernate.type.descriptor.java.AbstractClassJavaType

areEqual, extractHashCode, extractLoggableRepresentation, getComparator, getJavaType, getJavaTypeClass, getMutabilityPlan, unknownUnwrap, unknownWrap

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.hibernate.type.descriptor.java.JavaType

appendEncodedString, coerce, createJavaType, fromEncodedString, fromEncodedString, getCheckCondition, getDefaultSqlPrecision, getDefaultSqlScale, getDefaultValue, getLongSqlLength, getReplacement, getTypeName, isTemporalType, isWider

Field Details

INSTANCE

public static final UUIDJavaType INSTANCE

Constructor Details

UUIDJavaType

public UUIDJavaType()

Method Details

isInstance

public boolean isInstance(Object value)

Description copied from interface: JavaType

Is the given value an instance of the described type?

Usually just getJavaTypeClass().isInstance(value), but some descriptors need specialized semantics, for example, the descriptors for java.sql.Date, java.sql.Time, and java.sql.Timestamp.

getRecommendedJdbcType

public JdbcType getRecommendedJdbcType(JdbcTypeIndicators context)

Description copied from interface: BasicJavaType

Obtain the "recommended" SQL type descriptor for this Java type. Often, but not always, the source of this recommendation is the JDBC specification.

Parameters:

context - Contextual information

Returns:

The recommended SQL type descriptor

useObjectEqualsHashCode

public boolean useObjectEqualsHashCode()

Description copied from interface: JavaType

Whether to use Object.equals(Object) and Object.hashCode() or JavaType.areEqual(Object, Object) and JavaType.extractHashCode(Object) for objects of this java type. This is useful to avoid mega-morphic callsites.

toString

public String toString(UUID value)

fromString

public UUID fromString(CharSequence string)

getDefaultSqlLength

public long getDefaultSqlLength(Dialect dialect,
 JdbcType jdbcType)

Description copied from interface: JavaType

The default column length when this Java type is mapped to a SQL data type which is parametrized by length, for example Types.VARCHAR.

Returns:

Size.DEFAULT_LENGTH unless overridden

unwrap

public <X> X unwrap(UUID value,
 Class<X> type,
 WrapperOptions options)

Description copied from interface: JavaType

Unwrap an instance of our handled Java type into the requested type.

As an example, if this is a JavaType<Integer> and we are asked to unwrap the Integer value as a Long, we would return something like Long.valueOf( value.longValue() ).

Intended use is during PreparedStatement binding.

Type Parameters:

X - The conversion type.

Parameters:

value - The value to unwrap

type - The type as which to unwrap

options - The options

Returns:

The unwrapped value.

wrap

public <X> UUID wrap(X value,
 WrapperOptions options)

Description copied from interface: JavaType

Wrap a value as our handled Java type.

Intended use is during ResultSet extraction.

Type Parameters:

X - The conversion type.

Parameters:

value - The value to wrap.

options - The options

Returns:

The wrapped value.