dev.nokee.utils

Class DeferredUtils

java.lang.Object

dev.nokee.utils.DeferredUtils

public final class DeferredUtils
extends Object

Constructor Summary

Constructors

Constructor and Description
DeferredUtils()

Method Summary

Modifier and Type	Method and Description
static List<Object>	flatUnpack(Object deferred)
static <T> List<T>	flatUnpackUntil(Object deferred, BiFunction<Object,Deque<Object>,Boolean> flatter, UnaryOperator<Object> unpacker, Class<T> type) Unpack the specified deferred while flattening until all unpacked values are of the specified type.
static <T> List<T>	flatUnpackUntil(Object deferred, Class<T> type)
static <T> List<T>	flatUnpackUntil(Object deferred, UnaryOperator<Object> unpacker, Class<T> type)
static List<Object>	flatUnpackWhile(Object deferred, BiFunction<Object,Deque<Object>,Boolean> flatter, UnaryOperator<Object> unpacker, Predicate<Object> predicate)
static List<Object>	flatUnpackWhile(Object deferred, Predicate<Object> predicate)
static List<Object>	flatUnpackWhile(Object deferred, UnaryOperator<Object> unpacker, Predicate<Object> predicate)
static <T> void	realize(DomainObjectCollection<T> collection) Realize the specified domain object collection.
static Object	unpack(Object deferred) Successively unpacks a deferred value until it is resolved to null or something other than Callable (including Groovy Closure) or Kotlin lambda or Supplier then unpacks the remaining Provider or Factory.

Methods inherited from class java.lang.Object

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

Constructor Detail

DeferredUtils

public DeferredUtils()

Method Detail

unpack

@Nullable
public static Object unpack(@Nullable
                                      Object deferred)

Successively unpacks a deferred value until it is resolved to null or something other than Callable (including Groovy Closure) or Kotlin lambda or Supplier then unpacks the remaining Provider or Factory.

flatUnpackUntil

public static <T> List<T> flatUnpackUntil(@Nullable
                                          Object deferred,
                                          Class<T> type)

flatUnpackUntil

public static <T> List<T> flatUnpackUntil(@Nullable
                                          Object deferred,
                                          UnaryOperator<Object> unpacker,
                                          Class<T> type)

flatUnpackUntil

public static <T> List<T> flatUnpackUntil(@Nullable
                                          Object deferred,
                                          BiFunction<Object,Deque<Object>,Boolean> flatter,
                                          UnaryOperator<Object> unpacker,
                                          Class<T> type)

Unpack the specified deferred while flattening until all unpacked values are of the specified type.

Type Parameters:

T - the type to unpack

Parameters:

deferred - the deferred object to unpack

flatter - an flatter consumer for the deferred object

unpacker - an unpacker operation for the deferred object

type - the type to unpack

Returns:

a list of T representing the unpackting of the specified object. The method returns an empty list if the specified object is null.

Throws:

IllegalArgumentException - if the unpacker operator returns the same object

IllegalStateException - if the flatter consumer removes elements from the queue

flatUnpack

public static List<Object> flatUnpack(@Nullable
                                      Object deferred)

flatUnpackWhile

public static List<Object> flatUnpackWhile(@Nullable
                                           Object deferred,
                                           Predicate<Object> predicate)

flatUnpackWhile

public static List<Object> flatUnpackWhile(@Nullable
                                           Object deferred,
                                           UnaryOperator<Object> unpacker,
                                           Predicate<Object> predicate)

flatUnpackWhile

public static List<Object> flatUnpackWhile(@Nullable
                                           Object deferred,
                                           BiFunction<Object,Deque<Object>,Boolean> flatter,
                                           UnaryOperator<Object> unpacker,
                                           Predicate<Object> predicate)

realize

public static <T> void realize(DomainObjectCollection<T> collection)

Realize the specified domain object collection. The implementation of this method is dependent on the implementation of the domain object collections. This method will always force realize all elements of the collection.

Type Parameters:

T - the type of the collection to realize

Parameters:

collection - the collection to realize