Package org.hibernate.type.descriptor.java

Class RowVersionJavaType

java.lang.Object

org.hibernate.type.descriptor.java.AbstractClassJavaType<byte[]>

org.hibernate.type.descriptor.java.RowVersionJavaType

All Implemented Interfaces:

Serializable, BasicJavaType<byte[]>, JavaType<byte[]>, VersionJavaType<byte[]>

public class RowVersionJavaType
extends AbstractClassJavaType<byte[]>
implements VersionJavaType<byte[]>

Descriptor for byte[] handling specifically used for specifically for entity versions/timestamps.

See Also:

Serialized Form

Nested Class Summary

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

JavaType.CoercionContext

Field Summary

Fields

Modifier and Type	Field	Description
static RowVersionJavaType	INSTANCE

Constructor Summary

Constructors

Constructor	Description
RowVersionJavaType()

Method Summary

Modifier and Type	Method	Description
boolean	areEqual(byte[] one, byte[] another)	Determine if two instances are equal
int	extractHashCode(byte[] bytes)	Extract a proper hash code for the given value.
String	extractLoggableRepresentation(byte[] value)	Extract a loggable representation of the given value.
byte[]	fromString(CharSequence string)
byte[]	next(byte[] current, Long length, Integer precision, Integer scale, SharedSessionContractImplementor session)	Increment the version.
byte[]	seed(Long length, Integer precision, Integer scale, SharedSessionContractImplementor session)	Generate an initial version.
String	toString(byte[] bytes)
<X> X	unwrap(byte[] value, Class<X> type, WrapperOptions options)	Unwrap an instance of our handled Java type into the requested type.
<X> byte[]	wrap(X value, WrapperOptions options)	Wrap a value as our handled Java type.

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

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.BasicJavaType

getRecommendedJdbcType

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

appendEncodedString, coerce, createJavaType, createJavaType, fromEncodedString, getComparator, getDefaultSqlLength, getDefaultSqlPrecision, getDefaultSqlScale, getDefaultValue, getJavaType, getJavaTypeClass, getLongSqlLength, getMutabilityPlan, getReplacement, isInstance, isTemporalType, isWider

Field Detail

INSTANCE

public static final RowVersionJavaType INSTANCE

Constructor Detail

RowVersionJavaType

public RowVersionJavaType()

Method Detail

areEqual

public boolean areEqual(byte[] one,
                        byte[] another)

Description copied from interface: JavaType

Determine if two instances are equal

Specified by:

areEqual in interface JavaType<byte[]>

Overrides:

areEqual in class AbstractClassJavaType<byte[]>

Parameters:

one - One instance

another - The other instance

Returns:

True if the two are considered equal; false otherwise.

extractHashCode

public int extractHashCode(byte[] bytes)

Description copied from interface: JavaType

Extract a proper hash code for the given value.

Specified by:

extractHashCode in interface JavaType<byte[]>

Overrides:

extractHashCode in class AbstractClassJavaType<byte[]>

Parameters:

bytes - The value for which to extract a hash code.

Returns:

The extracted hash code.

toString

public String toString(byte[] bytes)

Specified by:

toString in interface JavaType<byte[]>

extractLoggableRepresentation

public String extractLoggableRepresentation(byte[] value)

Description copied from interface: JavaType

Extract a loggable representation of the given value.

Specified by:

extractLoggableRepresentation in interface JavaType<byte[]>

Overrides:

extractLoggableRepresentation in class AbstractClassJavaType<byte[]>

Parameters:

value - The value for which to extract a loggable representation.

Returns:

The loggable representation

fromString

public byte[] fromString(CharSequence string)

Specified by:

fromString in interface BasicJavaType<byte[]>

Specified by:

fromString in interface JavaType<byte[]>

unwrap

public <X> X unwrap(byte[] 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.

Specified by:

unwrap in interface JavaType<byte[]>

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> byte[] wrap(X value,
                       WrapperOptions options)

Description copied from interface: JavaType

Wrap a value as our handled Java type.

Intended use is during ResultSet extraction.

Specified by:

wrap in interface JavaType<byte[]>

Type Parameters:

X - The conversion type.

Parameters:

value - The value to wrap.

options - The options

Returns:

The wrapped value.

seed

public byte[] seed(Long length,
                   Integer precision,
                   Integer scale,
                   SharedSessionContractImplementor session)

Description copied from interface: VersionJavaType

Generate an initial version.

Specified by:

seed in interface VersionJavaType<byte[]>

Parameters:

length - The length of the type

precision - The precision of the type

scale - The scale of the type

session - The session from which this request originates.

Returns:

an instance of the type

next

public byte[] next(byte[] current,
                   Long length,
                   Integer precision,
                   Integer scale,
                   SharedSessionContractImplementor session)

Description copied from interface: VersionJavaType

Increment the version.

Specified by:

next in interface VersionJavaType<byte[]>

Parameters:

current - the current version

length - The length of the type

precision - The precision of the type

scale - The scale of the type

session - The session from which this request originates.

Returns:

an instance of the type