[Java] Class EmptyRange<T extends Comparable>

groovy.lang.EmptyRange

All Implemented Interfaces and Traits:: Range

public class EmptyRange<T extends Comparable>
extends AbstractList
implements Range

Constructing Ranges like 0..<0

Field Summary

Fields
Modifiers	Name	Description
`protected T`	`at`	The value at which the range originates (may be `null`).

Constructor Summary

Constructors
Constructor and description
`EmptyRange (T at)` Creates a new EmptyRange.

Methods Summary

Methods
Type Params	Return Type	Name and description
	`public boolean`	`add(T o)` Always throws `UnsupportedOperationException` for an empty range.
	`public boolean`	`addAll(int index, Collection<? extends T> c)` Always throws `UnsupportedOperationException` for an empty range.
	`public boolean`	`addAll(Collection<? extends T> c)` Always throws `UnsupportedOperationException` for an empty range.
	`public boolean`	`containsWithinBounds(Object o)` Never true for an empty range.
	`public T`	`get(int index)` Always throws `IndexOutOfBoundsException` for an empty range.
	`public T`	`getFrom()` {@inheritDoc}
	`public T`	`getTo()` {@inheritDoc}
	`public String`	`inspect()` {@inheritDoc}
	`public boolean`	`isReverse()` Never true for an empty range.
	`public boolean`	`remove(Object o)` Always throws `UnsupportedOperationException` for an empty range.
	`public T`	`remove(int index)` Always throws `UnsupportedOperationException` for an empty range.
	`public boolean`	`removeAll(Collection<?> c)` Always throws `UnsupportedOperationException` for an empty range.
	`public boolean`	`retainAll(Collection<?> c)` Always throws `UnsupportedOperationException` for an empty range.
	`public T`	`set(int index, T element)` Always throws `UnsupportedOperationException` for an empty range.
	`public int`	`size()` Always 0 for an empty range.
	`public void`	`step(int step, Closure closure)` Always does nothing for an empty range.
	`public List<T>`	`step(int step)` Always returns an empty list for an empty range.
	`public String`	`toString()` {@inheritDoc}

Inherited Methods Summary

Inherited Methods
Methods inherited from class	Name
`class AbstractList`	`add, add, remove, get, equals, hashCode, indexOf, clear, lastIndexOf, subList, iterator, addAll, set, listIterator, listIterator, remove, toString, isEmpty, contains, size, toArray, toArray, addAll, containsAll, retainAll, removeAll, wait, wait, wait, getClass, notify, notifyAll, toArray, spliterator, stream, removeIf, parallelStream, forEach, replaceAll, sort`

Field Detail

protected T at

The value at which the range originates (may be null).

Constructor Detail

public EmptyRange(T at)

Creates a new EmptyRange.

Parameters:: at - the value at which the range starts (may be null).

Method Detail

@Override public boolean add(T o)

Always throws UnsupportedOperationException for an empty range.

throws:: UnsupportedOperationException always

@Override public boolean addAll(int index, Collection<? extends T> c)

Always throws UnsupportedOperationException for an empty range.

throws:: UnsupportedOperationException

@Override public boolean addAll(Collection<? extends T> c)

Always throws UnsupportedOperationException for an empty range.

throws:: UnsupportedOperationException

@Override public boolean containsWithinBounds(Object o)

Never true for an empty range.

Returns:: false

@Override public T get(int index)

Always throws IndexOutOfBoundsException for an empty range.

throws:: IndexOutOfBoundsException always

@Override public T getFrom()

{@inheritDoc}

@Override public T getTo()

{@inheritDoc}

@Override public String inspect()

{@inheritDoc}

@Override public boolean isReverse()

Never true for an empty range.

Returns:: false

@Override public boolean remove(Object o)

Always throws UnsupportedOperationException for an empty range.

throws:: UnsupportedOperationException

@Override public T remove(int index)

Always throws UnsupportedOperationException for an empty range.

throws:: UnsupportedOperationException

@Override public boolean removeAll(Collection<?> c)

Always throws UnsupportedOperationException for an empty range.

throws:: UnsupportedOperationException

@Override public boolean retainAll(Collection<?> c)

Always throws UnsupportedOperationException for an empty range.

throws:: UnsupportedOperationException

@Override public T set(int index, T element)

Always throws UnsupportedOperationException for an empty range.

throws:: UnsupportedOperationException

@Override public int size()

Always 0 for an empty range.

Returns:: 0

@Override public void step(int step, Closure closure)

Always does nothing for an empty range.

@Override public List<T> step(int step)

Always returns an empty list for an empty range.

public String toString()

{@inheritDoc}

© 2003-2020 The Apache Software Foundation
Licensed under the Apache license.
https://docs.groovy-lang.org/3.0.7/html/gapi/groovy/lang/EmptyRange.html