ObjectList (Apache Jena)

All Superinterfaces:

java.util.Collection<java.lang.Object>, java.lang.Iterable<java.lang.Object>, java.util.List<java.lang.Object>

All Known Implementing Classes:

ObjectListImpl
```
public interface ObjectList
extends java.util.List<java.lang.Object>
```
The ObjectList is an immutable ordered collection of Object.

Version:

$Id: ObjectList.java 744816 2009-02-16 06:03:18Z mrglavas $

Author:

Ankit Pasricha, IBM

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`boolean`	`contains(java.lang.Object item)`	Checks if the `Object` `item` is a member of this list.
`int`	`getLength()`	The number of `Object`s in the list.
`java.lang.Object`	`item(int index)`	Returns the `index`th item in the collection or `null` if `index` is greater than or equal to the number of objects in the list.

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
add, add, addAll, addAll, clear, containsAll, equals, get, hashCode, indexOf, isEmpty, iterator, lastIndexOf, listIterator, listIterator, remove, remove, removeAll, replaceAll, retainAll, set, size, sort, spliterator, subList, toArray, toArray

- Method Detail
  - getLength
```
int getLength()
```
    The number of Objects in the list. The range of valid child object indices is 0 to length-1 inclusive.
  - contains
```
boolean contains(java.lang.Object item)
```
    Checks if the Object item is a member of this list.
    
    Specified by:
    
    contains in interface java.util.Collection<java.lang.Object>
    
    Specified by:
    
    contains in interface java.util.List<java.lang.Object>
    
    Parameters:
    
    item - Object whose presence in this list is to be tested.
    
    Returns:
    
    True if this list contains the Object item.
  - item
```
java.lang.Object item(int index)
```
    Returns the indexth item in the collection or null if index is greater than or equal to the number of objects in the list. The index starts at 0.
    
    Parameters:
    
    index - index into the collection.
    
    Returns:
    
    The Object at the indexth position in the ObjectList, or null if the index specified is not valid - greater than or equal to the number of items in the list or less than zero.