org.springframework.data.mapping.model

Class InstantiationAwarePropertyAccessor<T>

java.lang.Object

org.springframework.data.mapping.model.InstantiationAwarePropertyAccessor<T>

All Implemented Interfaces:

PersistentPropertyAccessor<T>

public class InstantiationAwarePropertyAccessor<T>
extends Object
implements PersistentPropertyAccessor<T>

A PersistentPropertyAccessor that will use an entity's PersistenceConstructor to create a new instance of it to apply a new value for a given PersistentProperty. Will only be used if the PersistentProperty is to be applied on a completely immutable entity type exposing a persistence constructor.

Since:

2.3

Author:

Oliver Drotbohm, Mark Paluch, Johannes Englmeier

Constructor Summary

Constructors

Constructor and Description
InstantiationAwarePropertyAccessor(PersistentPropertyAccessor<T> delegate, EntityInstantiators instantiators) Deprecated. since 2.4. Using this constructor allows only setting a single property as PersistentPropertyAccessor holds a reference to the initial bean state.
InstantiationAwarePropertyAccessor(T bean, Function<T,PersistentPropertyAccessor<T>> accessorFunction, EntityInstantiators instantiators) Creates an InstantiationAwarePropertyAccessor using the given delegate accessorFunction and EntityInstantiators.

Method Summary

Modifier and Type	Method and Description
T	getBean() Returns the underlying bean.
Object	getProperty(PersistentProperty<?> property) Returns the value of the given PersistentProperty of the underlying bean instance.
void	setProperty(PersistentProperty<?> property, Object value) Sets the given PersistentProperty to the given value.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.springframework.data.mapping.PersistentPropertyAccessor

getProperty, getProperty, setProperty

Constructor Detail

InstantiationAwarePropertyAccessor

@Deprecated
public InstantiationAwarePropertyAccessor(PersistentPropertyAccessor<T> delegate,
                                                      EntityInstantiators instantiators)

Deprecated. since 2.4. Using this constructor allows only setting a single property as PersistentPropertyAccessor holds a reference to the initial bean state.

Creates an InstantiationAwarePropertyAccessor using the given delegate PersistentPropertyAccessor and EntityInstantiators.

Parameters:

delegate - must not be null.

instantiators - must not be null.

InstantiationAwarePropertyAccessor

public InstantiationAwarePropertyAccessor(T bean,
                                          Function<T,PersistentPropertyAccessor<T>> accessorFunction,
                                          EntityInstantiators instantiators)

Creates an InstantiationAwarePropertyAccessor using the given delegate accessorFunction and EntityInstantiators. accessorFunction is used to obtain a new PersistentPropertyAccessor for each property to set.

Parameters:

bean - must not be null.

accessorFunction - must not be null.

instantiators - must not be null.

Since:

2.4

Method Detail

setProperty

public void setProperty(PersistentProperty<?> property,
                        @Nullable
                        Object value)

Description copied from interface: PersistentPropertyAccessor

Sets the given PersistentProperty to the given value. Will do type conversion if a ConversionService is configured.

Specified by:

setProperty in interface PersistentPropertyAccessor<T>

Parameters:

property - must not be null.

value - can be null.

getProperty

@Nullable
public Object getProperty(PersistentProperty<?> property)

Description copied from interface: PersistentPropertyAccessor

Returns the value of the given PersistentProperty of the underlying bean instance.

Specified by:

getProperty in interface PersistentPropertyAccessor<T>

Parameters:

property - must not be null.

Returns:

can be null.

getBean

public T getBean()

Description copied from interface: PersistentPropertyAccessor

Returns the underlying bean. The actual instance may change between PersistentPropertyAccessor.setProperty(PersistentProperty, Object) calls.

Specified by:

getBean in interface PersistentPropertyAccessor<T>

Returns:

will never be null.