Record Class CompoundMapping

java.lang.Object

java.lang.Record

jakarta.persistence.sql.CompoundMapping

Record Components:

elements - Mappings for the elements of the tuple

All Implemented Interfaces:

ResultSetMapping<Object[]>

public record CompoundMapping(MappingElement<?>[] elements)
extends Record
implements ResultSetMapping<Object[]>

Maps a JDBC ResultSet to a tuple of values packaged as an object array.

Since:

4.0

See Also:

• TupleMapping
• SqlResultSetMapping

Constructor Summary

Constructors

Constructor	Description
CompoundMapping(MappingElement<?>[] elements)	Creates an instance of a CompoundMapping record class.

Method Summary

Modifier and Type	Method	Description
MappingElement<?>[]	elements()	Returns the value of the elements record component.
final boolean	equals(Object o)	Indicates whether some other object is "equal to" this one.
final int	hashCode()	Returns a hash code value for this object.
static CompoundMapping	of(MappingElement<?>... elements)	Construct a new instance.
final String	toString()	Returns a string representation of this record class.
Class<Object[]>	type()	Always returns Object[].class.

Methods inherited from class Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Details

CompoundMapping

public CompoundMapping(MappingElement<?>[] elements)

Creates an instance of a CompoundMapping record class.

Parameters:

elements - the value for the elements record component

Method Details

of

public static CompoundMapping of(MappingElement<?>... elements)

Construct a new instance.

Parameters:

elements - Mappings for the elements of the tuple

type

public Class<Object[]> type()

Always returns Object[].class.

Specified by:

type in interface ResultSetMapping<Object[]>

toString

public final String toString()

Returns a string representation of this record class. The representation contains the name of the class, followed by the name and value of each of the record components.

Specified by:

toString in class Record

Returns:

a string representation of this object

hashCode

public final int hashCode()

Returns a hash code value for this object. The value is derived from the hash code of each of the record components.

Specified by:

hashCode in class Record

Returns:

a hash code value for this object

equals

public final boolean equals(Object o)

Indicates whether some other object is "equal to" this one. The objects are equal if the other object is of the same class and if all the record components are equal. All components in this record class are compared with Objects::equals(Object,Object).

Specified by:

equals in class Record

Parameters:

o - the object with which to compare

Returns:

true if this object is the same as the o argument; false otherwise.

elements

public MappingElement<?>[] elements()

Returns the value of the elements record component.

Returns:

the value of the elements record component