Package org.hibernate.type.descriptor.java

Class ClassJavaType

java.lang.Object

org.hibernate.type.descriptor.java.AbstractClassJavaType<Class<?>>

org.hibernate.type.descriptor.java.ClassJavaType

All Implemented Interfaces:

Serializable, BasicJavaType<Class<?>>, JavaType<Class<?>>

public class ClassJavaType
extends AbstractClassJavaType<Class<?>>

Descriptor for Class handling.

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 final ClassJavaType	INSTANCE

Constructor Summary

Constructors

Constructor	Description
ClassJavaType()

Method Summary

Modifier and Type	Method	Description
Class<?>	fromString(CharSequence string)
boolean	isInstance(Object value)	Is the given value an instance of the described type?
String	toString(Class<?> value)
<X> X	unwrap(Class<?> 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> Class<?>	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.BasicJavaType

getRecommendedJdbcType

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

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

Field Details

INSTANCE

public static final ClassJavaType INSTANCE

Constructor Details

ClassJavaType

public ClassJavaType()

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.

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(Class<?> value)

fromString

public Class<?> fromString(CharSequence string)

unwrap

public <X> X unwrap(Class<?> 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> Class<?> 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.