IReadOnlyCollection<T> Interface

Definition

Unit:: Spring.Collections

Package:: Spring.Base

Represents a generic read-only collection of elements.

Delphi

type IReadOnlyCollection<T> = interface(IEnumerable<T>)

Type Parameters

T

Inheritance: IInterface

IEnumerable<T>
IReadOnlyCollection<T>

Derived: ICollection<T>

ICollectionInternal

IGrouping<TKey,TElement>

ILookup<TKey,TElement>

ILookupInternal<TKey,TElement>

IReadOnlyList<T>

IReadOnlyMap<TKey,TValue>

IReadOnlyMultiSet<T>

TAnonymousReadOnlyList<T>

TArrayIterator<T>

TBidiDictionary<TKey,TValue>

TCollectionList<T>

TCollectionWrapper<T>

TDictionary<TKey,TValue>

TEmptyEnumerable<T>

THashMapInnerCollection<T>

THashMultiSet<T>

THashSet<T>

TInverse

TKeyCollection

TLinkedList<T>

TList<T>

TLookup<TKey,TElement>

TMultiMap<TKey,TValue>

TRangeIterator

TSortedDictionary<TKey,TValue>

TSortedList<T>

TSortedMultiMap<TKey,TValue>

TSortedSet<T>

TStringsAdapter

TTreeMapInnerCollection<T>

TTreeMultiSet<T>

TValueCollection

TValueList<TKey,T>

Properties

Comparer	Gets the assigned comparer. If no comparer was assigned it returns the default comparer. (Inherited from IEnumerable<T>)
Count	Returns the number of elements in the sequence. (Inherited from IEnumerable<T>)
ElementType	Gets the type of the elements in the sequence. (Inherited from IEnumerable<T>)
IsEmpty	Determines whether the sequence contains no elements. (Inherited from IEnumerable<T>)

Methods

Aggregate(Func<T,T,T>)	Applies an accumulator function over the sequence. (Inherited from IEnumerable<T>)
All(Predicate<T>)	Determines whether all elements of the sequence satisfy a condition. (Inherited from IEnumerable<T>)
Any(Predicate<T>)	Determines whether any element of the sequence satisfies a condition. (Inherited from IEnumerable<T>)
AsObject	Returns the reference to this instance. (Inherited from IEnumerable<T>)
AtLeast(Integer)	Determines whether or not the number of elements in the sequence is greater than or equal to the given count. (Inherited from IEnumerable<T>)
AtMost(Integer)	Determines whether or not the number of elements in the sequence is lesser than or equal to the given count. (Inherited from IEnumerable<T>)
Average(Func<T,Currency>)	Computes the average of a sequence of Currency values that are obtained by invoking a transform function on each element of the input sequence. (Inherited from IEnumerable<T>)
Between(Integer, Integer)	Determines whether or not the number of elements in the sequence is between an inclusive range of minimum and maximum integers. (Inherited from IEnumerable<T>)
Concat(IEnumerable<T>)	Concatenates two sequences. (Inherited from IEnumerable<T>)
Contains(T, TEqualityComparison<T>)	Determines whether the sequence contains a specified element by using a specified equality comparison. (Inherited from IEnumerable<T>)
CopyTo(TArray<T>, Integer)	Copies the elements of the collection to an array, starting at a particular array index.
DefaultIfEmpty(T)	Returns the elements of the sequence or the specified default value in sequence if the sequence is empty. (Inherited from IEnumerable<T>)
Distinct(IEqualityComparer<T>)	Returns distinct elements from the sequence by using a specified equality comparer to compare values. (Inherited from IEnumerable<T>)
ElementAt(Integer)	Returns the element at a specified index in the sequence. (Inherited from IEnumerable<T>)
ElementAtOrDefault(Integer, T)	Returns the element at a specified index in the sequence or the specified default value if the index is out of range. (Inherited from IEnumerable<T>)
EqualsTo(IEnumerable<T>, IEqualityComparer<T>)	Determines whether two sequences are equal by comparing their elements by using a specified equality comparer. (Inherited from IEnumerable<T>)
Exactly(Integer)	Determines whether or not the number of elements in the sequence is equals to the given count. (Inherited from IEnumerable<T>)
Exclude(IEnumerable<T>, IEqualityComparer<T>)	Produces the set difference of two sequences by using the specified equality comparer to compare values. (Inherited from IEnumerable<T>)
First(Predicate<T>)	Returns the first element in the sequence that satisfies a specified condition. (Inherited from IEnumerable<T>)
FirstOrDefault(Predicate<T>, T)	Returns the first element of the sequence that satisfies the specified condition or the specified default value if no such element is found. (Inherited from IEnumerable<T>)
ForEach(Action<T>)	Performs the specified action on each element of the sequence. (Inherited from IEnumerable<T>)
GetComparer	Returns the specified comparer for this instance. (Inherited from IEnumerable<T>)
GetCount	(Inherited from IEnumerable<T>)
GetElementType	(Inherited from IEnumerable<T>)
GetEnumerator	Returns an enumerator that iterates through the collection. (Inherited from IEnumerable<T>)
GetIsEmpty	(Inherited from IEnumerable<T>)
GetNonEnumeratedCount	Attempts to determine the number of elements in the sequence without forcing an enumeration. (Inherited from IEnumerable<T>)
Intersect(IEnumerable<T>, IEqualityComparer<T>)	Produces the set intersection of two sequences by using the specified equality comparer to compare values. (Inherited from IEnumerable<T>)
Last(Predicate<T>)	Returns the last element of the sequence that satisfies the specified condition. (Inherited from IEnumerable<T>)
LastOrDefault(Predicate<T>, T)	Returns the last element of the sequence that satisfies the specified condition or the specified default value if no such element is found. (Inherited from IEnumerable<T>)
Max(TComparison<T>)	Returns the maximum value in the sequence by using the specified comparison. (Inherited from IEnumerable<T>)
Memoize	Returns a sequence that lazily caches the sequence as it is iterated for the first time, reusing the cache thereafter for future re-iterations. If the sequence is already cached or buffered then it is returned verbatim. (Inherited from IEnumerable<T>)
Min(TComparison<T>)	Returns the minimum value in the sequence by using the specified comparison. (Inherited from IEnumerable<T>)
Ordered(TComparison<T>)	Sorts the elements of the sequence in ascending order using the specified comparison. (Inherited from IEnumerable<T>)
Reversed	Inverts the order of the elements in the sequence. (Inherited from IEnumerable<T>)
Shuffled	Returns a sequence of elements in random order from the original. (Inherited from IEnumerable<T>)
Single(Predicate<T>)	Returns the only element of the sequence that satisfies a specified condition, and raises an exception if more than one such element exists. (Inherited from IEnumerable<T>)
SingleOrDefault(Predicate<T>, T)	Returns the only element of the sequence that satisfies a specified condition, or a specified default value if no such element exists; this method raises an exception if more than one element satisfies the condition. (Inherited from IEnumerable<T>)
Skip(Integer)	Bypasses a specified number of elements in the sequence and then returns the remaining elements. (Inherited from IEnumerable<T>)
SkipLast(Integer)	Omits the specified number of elements at the end of the sequence. (Inherited from IEnumerable<T>)
SkipWhile(Func<T,Integer,Boolean>)	Bypasses elements in the sequence as long as a specified condition is true and then returns the remaining elements. The element's index is used in the logic of the predicate function. (Inherited from IEnumerable<T>)
Sum(Func<T,Currency>)	Computes the sum of the sequence of Currency values that are obtained by invoking a transform function on each element of the input sequence. (Inherited from IEnumerable<T>)
Take(Integer)	Returns the specified number of contiguous elements from the start of the sequence. (Inherited from IEnumerable<T>)
TakeLast(Integer)	Returns the specified number of contiguous elements from the end of the sequence. (Inherited from IEnumerable<T>)
TakeWhile(Func<T,Integer,Boolean>)	Returns elements from the sequence as long as a specified condition is true. The element's index is used in the logic of the predicate function. (Inherited from IEnumerable<T>)
ToArray	Creates a new array which is filled with the elements in the collection. (Inherited from IEnumerable<T>)
TryGetElementAt(T, Integer)	Attempts to get the element at a specified index in the sequence. (Inherited from IEnumerable<T>)
TryGetFirst(T, Predicate<T>)	Attempts to get the first element in the sequence that satisfies a specified condition. (Inherited from IEnumerable<T>)
TryGetLast(T, Predicate<T>)	Attempts to get the last element in the sequence that satisfies a specified condition. (Inherited from IEnumerable<T>)
TryGetSingle(T, Predicate<T>)	Attempts to get the only element in the sequence that satisfies a specified condition. (Inherited from IEnumerable<T>)
Union(IEnumerable<T>, IEqualityComparer<T>)	Produces the set union of two sequences by using a specified equality comparer. (Inherited from IEnumerable<T>)
Where(Func<T,Integer,Boolean>)	Filters the sequence based on the specified predicate. Each element's index is used in the logic of the predicate function. (Inherited from IEnumerable<T>)