# Class ColumnCollection

java.lang.Object
java.util.AbstractCollection<Column>
java.util.AbstractList<Column>
java.util.ArrayList<Column>
org.daypilot.data.ColumnCollection

All Implemented Interfaces:
  `Serializable`, `Cloneable`, `Iterable<Column>`, `Collection<Column>`, `List<Column>`, `RandomAccess`, `SequencedCollection<Column>`

public class ColumnCollection extends ArrayList<Column>

See Also:
  - Serialized Form

- ## Field Summary

  ### Fields inherited from class java.util.AbstractList

  `modCount`

- ## Constructor Summary

  Constructors
  Constructor
  Description
  `ColumnCollection()`

- ## Method Summary

  Modifier and Type
  Method
  Description
  `List<Column>`
  `getColumns(int level, boolean inherit)`
  `JSONArray`
  `getJSON()`
  `void`
  `restoreFromJSON(JSONArray input)`

  ### Methods inherited from class java.util.ArrayList

  `add, add, addAll, addAll, addFirst, addLast, clear, clone, contains, ensureCapacity, equals, forEach, get, getFirst, getLast, hashCode, indexOf, isEmpty, iterator, lastIndexOf, listIterator, listIterator, remove, remove, removeAll, removeFirst, removeIf, removeLast, removeRange, replaceAll, retainAll, set, size, sort, spliterator, subList, toArray, toArray, trimToSize`

  ### Methods inherited from class java.util.AbstractCollection

  `containsAll, toString`

  ### Methods inherited from class java.lang.Object

  `finalize, getClass, notify, notifyAll, wait, wait, wait`

  ### Methods inherited from interface java.util.Collection

  `parallelStream, stream, toArray`

  ### Methods inherited from interface java.util.List

  `containsAll, reversed`

- ## Constructor Details

  - ### ColumnCollection

    public ColumnCollection()

- ## Method Details

  - ### getColumns

    public List<Column> getColumns(int level, boolean inherit)

  - ### getJSON

    public JSONArray getJSON()

  - ### restoreFromJSON

    public void restoreFromJSON(JSONArray input)