CartesianList (druid-processing 28.0.1 API)

java.lang.Object
- java.util.AbstractCollection<E>
- - java.util.AbstractList<List<E>>
  - - org.apache.druid.math.expr.CartesianList<E>

All Implemented Interfaces:

Iterable<List<E>>, Collection<List<E>>, List<List<E>>, RandomAccess
```
public final class CartesianList<E>
extends AbstractList<List<E>>
implements RandomAccess
```
CartesianList computes the cartesian product of n lists. It is adapted from and is *nearly* identical to one Guava CartesianList which comes from a version from "the future" that we don't yet have, with the key difference that it is not ImmutableList based, so it can hold null values to be compatible with the evaluation and handling of cartesian products of expression arrays with null elements, e.g. ['a', 'b', null]

Field Summary
- Fields inherited from class java.util.AbstractList
  modCount

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`boolean`	`contains(Object o)`
`static <E> List<List<E>>`	`create(List<? extends List<? extends E>> lists)`
`List<E>`	`get(int index)`
`int`	`indexOf(Object o)`
`int`	`size()`

Methods inherited from class java.util.AbstractList
add, add, addAll, clear, equals, hashCode, iterator, lastIndexOf, listIterator, listIterator, remove, removeRange, set, subList

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

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

Methods inherited from interface java.util.Collection
parallelStream, removeIf, stream, toArray

Methods inherited from interface java.lang.Iterable
forEach

Methods inherited from interface java.util.List
addAll, containsAll, isEmpty, remove, removeAll, replaceAll, retainAll, sort, spliterator, toArray, toArray

- Method Detail
  - create
```
public static <E> List<List<E>> create(List<? extends List<? extends E>> lists)
```
  - indexOf
```
public int indexOf(Object o)
```
    Specified by:
    
    indexOf in interface List<E>
    
    Overrides:
    
    indexOf in class AbstractList<List<E>>
  - get
```
public List<E> get(int index)
```
    Specified by:
    
    get in interface List<E>
    
    Specified by:
    
    get in class AbstractList<List<E>>
  - size
```
public int size()
```
    Specified by:
    
    size in interface Collection<E>
    
    Specified by:
    
    size in interface List<E>
    
    Specified by:
    
    size in class AbstractCollection<List<E>>
  - contains
```
public boolean contains(@Nullable
                        Object o)
```
    Specified by:
    
    contains in interface Collection<E>
    
    Specified by:
    
    contains in interface List<E>
    
    Overrides:
    
    contains in class AbstractCollection<List<E>>