CollectionUtils (Ontopia)

java.lang.Object
- net.ontopia.utils.CollectionUtils

```
public class CollectionUtils
extends Object
```
INTERNAL: Class that contains useful collection methods.

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`static <T> boolean`	`equalsUnorderedSet(Collection<T> coll1, Collection<T> coll2)`	INTERNAL: Compares two collections to see if they contain the same elements.
`static <T> T`	`getFirst(Collection<T> coll)`	INTERNAL: Gets the first object in the collection.
`static <T> T`	`getFirstElement(Collection<T> coll)`	INTERNAL: Gets the first object in the collection.
`static <T> T`	`getRandom(Collection<T> coll)`	INTERNAL: Gets a random object from the collection.
`static <T> List<T>`	`nextBatch(Iterator<T> iter, int length)`	EXPERIMENTAL: Iterates over up to length number of elements in the iterator and returns those elements as a Collection.

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

- Method Detail
  - getFirst
```
public static <T> T getFirst(Collection<T> coll)
```
    INTERNAL: Gets the first object in the collection. If the collection is empty, null is returned.
  - getFirstElement
```
public static <T> T getFirstElement(Collection<T> coll)
```
    INTERNAL: Gets the first object in the collection. If the collection does not contain any elements NoSuchElementException is thrown.
    
    Since:
    
    1.3.4
  - getRandom
```
public static <T> T getRandom(Collection<T> coll)
```
    INTERNAL: Gets a random object from the collection. If the collection is empty, null is returned.
  - equalsUnorderedSet
```
public static <T> boolean equalsUnorderedSet(Collection<T> coll1,
                                             Collection<T> coll2)
```
    INTERNAL: Compares two collections to see if they contain the same elements.
    
    Since:
    
    1.4.1
  - nextBatch
```
public static <T> List<T> nextBatch(Iterator<T> iter,
                                    int length)
```
    EXPERIMENTAL: Iterates over up to length number of elements in the iterator and returns those elements as a Collection. If the iterator is exhausted only the iterated elements are returned.