org.hibernate.type.descriptor.java
Class ClobTypeDescriptor

java.lang.Object
  org.hibernate.type.descriptor.java.AbstractTypeDescriptor<Clob>
      org.hibernate.type.descriptor.java.ClobTypeDescriptor

All Implemented Interfaces:

Serializable, JavaTypeDescriptor<Clob>

public class ClobTypeDescriptor
extends AbstractTypeDescriptor<Clob>

Descriptor for Clob handling.

Note, clobs really are mutable (their internal state can in fact be mutated). We simply treat them as immutable because we cannot properly check them for changes nor deep copy them.

Author:

Steve Ebersole

See Also:

Serialized Form

Nested Class Summary

static class

ClobTypeDescriptor.ClobMutabilityPlan

Field Summary

static ClobTypeDescriptor

INSTANCE

Constructor Summary

ClobTypeDescriptor()

Method Summary

boolean	areEqual(Clob one, Clob another) Determine if two instances are equal
int	extractHashCode(Clob value) Extract a proper hash code for this value.
Clob	fromString(String string)
Comparator<Clob>	getComparator() Retrieve the natural comparator for this type.
String	toString(Clob value)
<X> X	unwrap(Clob value, Class<X> type, WrapperOptions options) Unwrap an instance of our handled Java type into the requested type.
<X> Clob	wrap(X value, WrapperOptions options) Wrap a value as our handled Java type.

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

extractLoggableRepresentation, getJavaTypeClass, getMutabilityPlan, unknownUnwrap, unknownWrap

Methods inherited from class java.lang.Object

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

Field Detail

INSTANCE

public static final ClobTypeDescriptor INSTANCE

Constructor Detail

ClobTypeDescriptor

public ClobTypeDescriptor()

Method Detail

toString

public String toString(Clob value)

fromString

public Clob fromString(String string)

getComparator

public Comparator<Clob> getComparator()

Description copied from class: AbstractTypeDescriptor

Retrieve the natural comparator for this type.

Specified by:

getComparator in interface JavaTypeDescriptor<Clob>

Overrides:

getComparator in class AbstractTypeDescriptor<Clob>

Returns:

The natural comparator.

extractHashCode

public int extractHashCode(Clob value)

Description copied from class: AbstractTypeDescriptor

Extract a proper hash code for this value.

Specified by:

extractHashCode in interface JavaTypeDescriptor<Clob>

Overrides:

extractHashCode in class AbstractTypeDescriptor<Clob>

Parameters:

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

Returns:

The extracted hash code.

areEqual

public boolean areEqual(Clob one,
                        Clob another)

Description copied from class: AbstractTypeDescriptor

Determine if two instances are equal

Specified by:

areEqual in interface JavaTypeDescriptor<Clob>

Overrides:

areEqual in class AbstractTypeDescriptor<Clob>

Parameters:

one - One instance

another - The other instance

Returns:

True if the two are considered equal; false otherwise.

unwrap

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

Description copied from interface: JavaTypeDescriptor

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

As an example, if this is a JavaTypeDescriptor<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> Clob wrap(X value,
                     WrapperOptions options)

Description copied from interface: JavaTypeDescriptor

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.