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## groovy.lang
Class ObjectRange

    java.lang.Object
      java.util.AbstractCollection
          java.util.AbstractList
              groovy.lang.ObjectRange

All Implemented Interfaces:
  Range, Iterable, Collection, List

    public class ObjectRange

extends AbstractList
implements Range

Represents an inclusive list of objects from a value to a value using comparators.

This class is similar to `IntRange`. If you make any changes to this class, you might consider making parallel changes to `IntRange`.

Version:
  $Revision: 10259 $
Author:
  James Strachan

Field Summary

Fields inherited from class java.util.AbstractList
`modCount`

Constructor Summary
`ObjectRange(Comparable from, Comparable to)` Creates a new `ObjectRange`.
`ObjectRange(Comparable from, Comparable to, boolean reverse)`

Method Summary
`boolean` | `contains(Object value)`
`boolean` | `containsWithinBounds(Object value)` Checks whether a value is between the from and to values of a Range
`protected Object` | `decrement(Object value)` Decrements by one
`boolean` | `equals(Object that)`
`boolean` | `equals(ObjectRange that)` Compares an `ObjectRange` to another `ObjectRange`.
`Object` | `get(int index)`
`Comparable` | `getFrom()` Gets the lower value in the range.
`Comparable` | `getTo()` Gets the lower value in the range.
`protected Object` | `increment(Object value)` Increments by one
`String` | `inspect()`
`boolean` | `isReverse()` Indicates whether this is a reverse range which iterates backwards starting from the to value and ending on the from value
`Iterator` | `iterator()`
`int` | `size()`
`List` | `step(int step)` Forms a list by stepping through the range by the indicated interval.
`void` | `step(int step, Closure closure)` Steps through the range, calling a closure for each number.
`List` | `subList(int fromIndex, int toIndex)`
`String` | `toString()`

Methods inherited from class java.util.AbstractList
`add, add, addAll, clear, hashCode, indexOf, lastIndexOf, listIterator, listIterator, remove, removeRange, set`

Methods inherited from class java.util.AbstractCollection
`addAll, containsAll, isEmpty, remove, removeAll, retainAll, toArray, toArray`

Methods inherited from class java.lang.Object
`clone, finalize, getClass, notify, notifyAll, wait, wait, wait`

Methods inherited from interface java.util.List
`add, add, addAll, addAll, clear, containsAll, hashCode, indexOf, isEmpty, lastIndexOf, listIterator, listIterator, remove, remove, removeAll, retainAll, set, toArray, toArray`

Constructor Detail

### ObjectRange

    public ObjectRange(Comparable from,
                       Comparable to)

  Creates a new `ObjectRange`. Creates a reversed range if `from` < `to`.

  Parameters:
    `from` - the first value in the range.
    `to` - the last value in the range.

### ObjectRange

    public ObjectRange(Comparable from,
                       Comparable to,
                       boolean reverse)

Method Detail

### equals

    public boolean equals(Object that)

  Specified by:
    `equals` in interface `Collection`
  Specified by:
    `equals` in interface `List`
  Overrides:
    `equals` in class `AbstractList`

### equals

    public boolean equals(ObjectRange that)

  Compares an `ObjectRange` to another `ObjectRange`.

  Parameters:
    `that` - the object to check equality with
  Returns:
    `true` if the ranges are equal

### getFrom

    public Comparable getFrom()

  Gets the lower value in the range.

  Specified by:
    `getFrom` in interface `Range`
  Returns:
    the lower value in the range.

### getTo

    public Comparable getTo()

  Gets the lower value in the range.

  Specified by:
    `getTo` in interface `Range`
  Returns:
    the upper value in the range

### isReverse

    public boolean isReverse()

  Indicates whether this is a reverse range which iterates backwards starting from the to value and ending on the from value

  Specified by:
    `isReverse` in interface `Range`
  Returns:
    `true` if this is a reverse range

### get

    public Object get(int index)

  Specified by:
    `get` in interface `List`
  Specified by:
    `get` in class `AbstractList`

### iterator

    public Iterator iterator()

  Specified by:
    `iterator` in interface `Iterable`
  Specified by:
    `iterator` in interface `Collection`
  Specified by:
    `iterator` in interface `List`
  Overrides:
    `iterator` in class `AbstractList`

### containsWithinBounds

    public boolean containsWithinBounds(Object value)

  Checks whether a value is between the from and to values of a Range

  Specified by:
    `containsWithinBounds` in interface `Range`
  Parameters:
    `value` - the value of interest
  Returns:
    true if the value is within the bounds

### size

    public int size()

  Specified by:
    `size` in interface `Collection`
  Specified by:
    `size` in interface `List`
  Specified by:
    `size` in class `AbstractCollection`

### subList

    public List subList(int fromIndex,
                        int toIndex)

  Specified by:
    `subList` in interface `List`
  Overrides:
    `subList` in class `AbstractList`

### toString

    public String toString()

  Overrides:
    `toString` in class `AbstractCollection`

### inspect

    public String inspect()

  Specified by:
    `inspect` in interface `Range`
  Returns:
    the verbose `String` representation of this `Range` as would be typed into a console to create the `Range` instance

### contains

    public boolean contains(Object value)

  Specified by:
    `contains` in interface `Collection`
  Specified by:
    `contains` in interface `List`
  Overrides:
    `contains` in class `AbstractCollection`

### step

    public void step(int step,
                     Closure closure)

  Steps through the range, calling a closure for each number.

  Specified by:
    `step` in interface `Range`
  Parameters:
    `step` - the amount by which to step. If negative, steps through the range backwards.
    `closure` - the `Closure` to call

### step

    public List step(int step)

  Forms a list by stepping through the range by the indicated interval.

  Specified by:
    `step` in interface `Range`
  Parameters:
    `step` - the amount by which to step. If negative, steps through the range backwards.
  Returns:
    the list formed by stepping through the range by the indicated interval.

### increment

    protected Object increment(Object value)

  Increments by one

  Parameters:
    `value` - the value to increment
  Returns:
    the incremented value

### decrement

    protected Object decrement(Object value)

  Decrements by one

  Parameters:
    `value` - the value to decrement
  Returns:
    the decremented value

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