Seq (protonpack 1.16 API)

Type Parameters:

T - The type of the values in the sequence.

All Superinterfaces:

Streamable<T>, java.util.function.Supplier<java.util.stream.Stream<T>>
```
public interface Seq<T>
extends Streamable<T>
```
A sequence of values represented as nested cons pairs.

Method Summary

All Methods Static Methods Instance Methods Abstract Methods Default Methods
Modifier and Type	Method and Description
`default Seq<T>`	`append(Seq<T> items)` Append a second sequence to this sequence.
`Seq<T>`	`cons(T item)` Add an item to the start of the sequence.
`static <T> Seq<T>`	`empty()` Creates an empty sequence.
`default java.util.stream.Stream<T>`	`get()` Gets a stream of the items in the sequence.
`T`	`head()` Get the first item in the sequence.
`boolean`	`isEmpty()` Test if the sequence is empty.
`static <T> Seq<T>`	`of(Collection<T> collection)` Creates a sequence from a collection
`static <T> Seq<T>`	`of(List<T> list)` Creates a sequence from an ordered list
`static <T> Seq<T>`	`of(java.util.stream.Stream<T> stream)` Creates a sequence from a stream by consing each item onto an initially empty stream.
`static <T> Seq<T>`	`of(T... items)` Creates a sequence containing zero or more items.
`default Seq<T>`	`reverse()` Returns the stream in reverse order.
`static <T> Seq<T>`	`singleton(T item)` Creates a sequence containing only one item.
`Seq<T>`	`tail()` Get the remaining items in the sequence.
`default Seq<T>`	`toSeq()` Stream this streamable, and collect the stream into a Seq.

Methods inherited from interface com.codepoetics.protonpack.Streamable
collect, concat, filter, flatMap, forEach, forEachOrdered, limit, map, of, of, of, ofAll, reduce, reduce, reduce, reject, skip, sorted, stream, toArray, toList, toMap, toMap, toSet, transform

- Method Detail
  - empty
```
static <T> Seq<T> empty()
```
    Creates an empty sequence.
    
    Specified by:
    
    empty in interface Streamable<T>
    
    Type Parameters:
    
    T - The type of the values in the sequence.
    
    Returns:
    
    The empty sequence.
  - singleton
```
static <T> Seq<T> singleton(T item)
```
    Creates a sequence containing only one item.
    
    Type Parameters:
    
    T - The type of the values in the sequence.
    
    Parameters:
    
    item - The item in the sequence.
    
    Returns:
    
    The created sequence.
  - of
```
@SafeVarargs
static <T> Seq<T> of(T... items)
```
    Creates a sequence containing zero or more items.
    
    Specified by:
    
    of in interface Streamable<T>
    
    Type Parameters:
    
    T - The type of the items.
    
    Parameters:
    
    items - The items in the sequence.
    
    Returns:
    
    The created sequence.
  - of
```
static <T> Seq<T> of(List<T> list)
```
    Creates a sequence from an ordered list
    
    Type Parameters:
    
    T - The type of the items.
    
    Parameters:
    
    list - The list of items to put in the sequence.
    
    Returns:
    
    The created sequence.
  - of
```
static <T> Seq<T> of(Collection<T> collection)
```
    Creates a sequence from a collection
    
    Specified by:
    
    of in interface Streamable<T>
    
    Type Parameters:
    
    T - The type of the items.
    
    Parameters:
    
    collection - The collection of items to put in the sequence.
    
    Returns:
    
    The created sequence.
  - of
```
static <T> Seq<T> of(java.util.stream.Stream<T> stream)
```
    Creates a sequence from a stream by consing each item onto an initially empty stream. Note that the resulting sequence will be in reverse order.
    
    Type Parameters:
    
    T - The type of the items.
    
    Parameters:
    
    stream - The stream of values to put in the sequence.
    
    Returns:
    
    The created sequence.
  - reverse
```
default Seq<T> reverse()
```
    Returns the stream in reverse order.
    
    Returns:
    
    The reversed stream.
  - head
```
T head()
```
    Get the first item in the sequence.
    
    Returns:
    
    The first item in the sequence.
  - tail
```
Seq<T> tail()
```
    Get the remaining items in the sequence.
    
    Returns:
    
    The remaining items in the sequence.
  - cons
```
Seq<T> cons(T item)
```
    Add an item to the start of the sequence.
    
    Parameters:
    
    item - The item to add to the sequence.
    
    Returns:
    
    The extended sequence.
  - append
```
default Seq<T> append(Seq<T> items)
```
    Append a second sequence to this sequence.
    
    Parameters:
    
    items - The sequence to append to this sequence.
    
    Returns:
    
    The two sequences concatenated.
  - isEmpty
```
boolean isEmpty()
```
    Test if the sequence is empty.
    
    Returns:
    
    True if the sequence is empty, false otherwise.
  - get
```
default java.util.stream.Stream<T> get()
```
    Gets a stream of the items in the sequence.
    
    Specified by:
    
    get in interface java.util.function.Supplier<java.util.stream.Stream<T>>
    
    Returns:
    
    A stream of the items in the sequence.
  - toSeq
```
default Seq<T> toSeq()
```
    Description copied from interface: Streamable
    
    Stream this streamable, and collect the stream into a Seq.
    
    Specified by:
    
    toSeq in interface Streamable<T>
    
    Returns:
    
    The collected result.

Interface Seq<T>

Method Summary

Methods inherited from interface com.codepoetics.protonpack.Streamable

Method Detail

empty

singleton

of

of

of

of

reverse

head

tail

cons

append

isEmpty

get

toSeq