Package cz.cvut.kbss.jopa.proxy.lazy

Class LazyLoadingSetProxy<O,E>

java.lang.Object

cz.cvut.kbss.jopa.proxy.lazy.LazyLoadingSetProxy<O,E>

All Implemented Interfaces:

LazyLoadingProxy<Set<E>>, Iterable<E>, Collection<E>, Set<E>

public class LazyLoadingSetProxy<O,E>
extends Object
implements Set<E>

Field Summary

Fields

Modifier and Type	Field	Description
protected final FieldSpecification<? super O,Set<E>>	fieldSpec
protected final O	owner
protected final UnitOfWork	persistenceContext

Constructor Summary

Constructors

Constructor	Description
LazyLoadingSetProxy(O owner, FieldSpecification<? super O,Set<E>> fieldSpec, UnitOfWork persistenceContext)

Method Summary

Modifier and Type	Method	Description
boolean	add(E e)
boolean	addAll(Collection<? extends E> c)
void	clear()
boolean	contains(Object o)
boolean	containsAll(Collection<?> c)
Set<E>	getLoadedValue()	If this proxy has already been loaded, this method returns the loaded value.
boolean	isEmpty()
boolean	isLoaded()	Checks whether this proxy has already been loaded.
Iterator<E>	iterator()
boolean	remove(Object o)
boolean	removeAll(Collection<?> c)
boolean	retainAll(Collection<?> c)
int	size()
Object[]	toArray()
<ET> ET[]	toArray(ET[] a)
String	toString()
Set<E>	triggerLazyLoading()	Triggers value loading.
Set<E>	unwrap()	Gets a value that should be used to replace this proxy outside a persistence context.

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Collection

parallelStream, removeIf, stream, toArray

Methods inherited from interface java.lang.Iterable

forEach

Methods inherited from interface java.util.Set

add, addAll, clear, contains, containsAll, equals, hashCode, isEmpty, iterator, remove, removeAll, retainAll, size, spliterator, toArray, toArray

Field Details

owner

protected final O owner

fieldSpec

protected final FieldSpecification<? super O,Set<E>> fieldSpec

persistenceContext

protected final UnitOfWork persistenceContext

Constructor Details

LazyLoadingSetProxy

public LazyLoadingSetProxy(O owner,
 FieldSpecification<? super O,Set<E>> fieldSpec,
 UnitOfWork persistenceContext)

Method Details

unwrap

public Set<E> unwrap()

Description copied from interface: LazyLoadingProxy

Gets a value that should be used to replace this proxy outside a persistence context.

Specified by:

unwrap in interface LazyLoadingProxy<O>

Returns:

Default value to replace this proxy with

triggerLazyLoading

public Set<E> triggerLazyLoading()

Description copied from interface: LazyLoadingProxy

Triggers value loading.

Specified by:

triggerLazyLoading in interface LazyLoadingProxy<O>

Returns:

Loaded value

isLoaded

public boolean isLoaded()

Description copied from interface: LazyLoadingProxy

Checks whether this proxy has already been loaded.

Specified by:

isLoaded in interface LazyLoadingProxy<O>

Returns:

true if this proxy has been loaded, false otherwise

getLoadedValue

public Set<E> getLoadedValue()

Description copied from interface: LazyLoadingProxy

If this proxy has already been loaded, this method returns the loaded value.

Specified by:

getLoadedValue in interface LazyLoadingProxy<O>

Returns:

The loaded value, null if this proxy has not been loaded, yet

See Also:

• LazyLoadingProxy.isLoaded()

size

public int size()

Specified by:

size in interface Collection<O>

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface Collection<O>

contains

public boolean contains(Object o)

Specified by:

contains in interface Collection<O>

iterator

public Iterator<E> iterator()

Specified by:

iterator in interface Collection<O>

Specified by:

iterator in interface Iterable<O>

toArray

public Object[] toArray()

Specified by:

toArray in interface Collection<O>

toArray

public <ET> ET[] toArray(ET[] a)

Specified by:

toArray in interface Collection<O>

add

public boolean add(E e)

Specified by:

add in interface Collection<O>

remove

public boolean remove(Object o)

Specified by:

remove in interface Collection<O>

containsAll

public boolean containsAll(Collection<?> c)

Specified by:

containsAll in interface Collection<O>

addAll

public boolean addAll(Collection<? extends E> c)

Specified by:

addAll in interface Collection<O>

removeAll

public boolean removeAll(Collection<?> c)

Specified by:

removeAll in interface Collection<O>

retainAll

public boolean retainAll(Collection<?> c)

Specified by:

retainAll in interface Collection<O>

clear

public void clear()

Specified by:

clear in interface Collection<O>

toString

public String toString()

Overrides:

toString in class Object