Package jjparse.input

Class StreamInput<T>

java.lang.Object

jjparse.input.Input<T>

jjparse.input.StreamInput<T>

Type Parameters:

T - The element type of the Stream.

public final class StreamInput<T>
extends Input<T>

A lazily evaluated Input for Streams of arbitrary elements. Input<T>.Positions returned by this Input reflect the order in which the elements are retrieved from the Stream using Stream.findFirst().

Author:

Björn Lötters

See Also:

• Input
• Input<T>.Position
• Stream
• Stream.findFirst()

Nested Class Summary

Nested classes/interfaces inherited from class jjparse.input.Input

Input.Position

Field Summary

Fields inherited from class jjparse.input.Input

name

Method Summary

Modifier and Type	Method	Description
T	head()	Returns the first element of this Input.
boolean	isEmpty()	Checks whether this Input is empty.
Input<T>.Position	position()	A Input<T>.Position that points to the first element in this Input.
StreamInput<T>	tail()	Returns the rest of this Input, excluding its first element.

Methods inherited from class jjparse.input.Input

empty, nonEmpty, of, of, of, of, of, of, of

Methods inherited from class java.lang.Object

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

Method Details

isEmpty

public boolean isEmpty()

Description copied from class: Input

Checks whether this Input is empty.

Specified by:

isEmpty in class Input<T>

Returns:

true if this Input is empty.

See Also:

• Input.nonEmpty()

head

public T head()
       throws NoSuchElementException

Description copied from class: Input

Returns the first element of this Input. If this Input is empty, an exception is thrown.

Specified by:

head in class Input<T>

Returns:

The first element of this Input.

Throws:

NoSuchElementException - If this Input is empty.

See Also:

• Input.isEmpty()
• Input.tail()

tail

public StreamInput<T> tail()

Description copied from class: Input

Returns the rest of this Input, excluding its first element. If this Input is empty, an empty Input is returned.

Specified by:

tail in class Input<T>

Returns:

The rest of this Input or an empty Input, if this Input is empty.

See Also:

• Input.isEmpty()
• Input.head()

position

public Input<T>.Position position()

Description copied from class: Input

A Input<T>.Position that points to the first element in this Input.

Specified by:

position in class Input<T>

Returns:

The Input<T>.Position of the first element in this Input.