Class EntityJavaType<T>

java.lang.Object

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

org.hibernate.type.descriptor.java.spi.EntityJavaType<T>

All Implemented Interfaces:

Serializable, BasicJavaType<T>, JavaType<T>

public class EntityJavaType<T>
extends AbstractClassJavaType<T>

Uses object identity for equals/hashCode as we ensure that internally.

See Also:

• Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from interface JavaType

JavaType.CoercionContext

Constructor Summary

Constructors

Constructor	Description
EntityJavaType(Class<T> type, MutabilityPlan<T> mutabilityPlan)

Method Summary

Modifier and Type	Method	Description
boolean	areEqual(T one, T another)	Determine if two instances are equal
int	extractHashCode(T value)	Extract a proper hash code for the given value.
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()
<X> X	unwrap(T value, Class<X> type, WrapperOptions options)	Unwrap an instance of our handled Java type into the requested type.
<X> T	wrap(X value, WrapperOptions options)	Wrap a value as our handled Java type.

Methods inherited from class AbstractClassJavaType

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

Methods inherited from class Object

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

Methods inherited from interface BasicJavaType

fromString

Methods inherited from interface JavaType

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

Constructor Details

EntityJavaType

public EntityJavaType(Class<T> type,
 MutabilityPlan<T> mutabilityPlan)

Method Details

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

extractHashCode

public int extractHashCode(T value)

Description copied from interface: JavaType

Extract a proper hash code for the given value.

Specified by:

extractHashCode in interface JavaType<T>

Overrides:

extractHashCode in class AbstractClassJavaType<T>

Parameters:

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

Returns:

The extracted hash code.

areEqual

public boolean areEqual(T one,
 T another)

Description copied from interface: JavaType

Determine if two instances are equal

Specified by:

areEqual in interface JavaType<T>

Overrides:

areEqual in class AbstractClassJavaType<T>

Parameters:

one - One instance

another - The other instance

Returns:

True if the two are considered equal; false otherwise.

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.

For EntityJavaType, this method handles proxies in a semantically correct way, by checking the entity instance underlying the proxy object.

unwrap

public <X> X unwrap(T 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> T 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.

toString

public String toString()

Overrides:

toString in class Object