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groovy / 4.0 / groovy / lang / emptyrange.html

[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, size, toArray, toArray, contains, addAll, removeAll, retainAll, containsAll, wait, wait, wait, getClass, notify, notifyAll, toArray, stream, spliterator, 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.

@Override public String toString()

{@inheritDoc}

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Licensed under the Apache license.
https://docs.groovy-lang.org/4.0.0/html/gapi/groovy/lang/EmptyRange.html