DatasetReference (Charba - J2CL and GWT charts library based on CHART.JS)

java.lang.Object
- org.pepstock.charba.client.commons.NativeObjectContainer
- - org.pepstock.charba.client.items.DatasetReference

```
public final class DatasetReference
extends NativeObjectContainer
```
Calling some methods on your chart instance passing an argument of an event, will return the elements at the event position.
The elements are mapped by this object.
This is the CHART.JS item with all needed info about a selected data set, providing the right indexes to get the data set.

Author:

Andrea "Stock" Stocchero

Nested Class Summary

Nested Classes
Modifier and Type Class Description

static class DatasetReference.DatasetReferenceItemFactory
Inner class to create data set reference item by a native object.

Field Summary

Fields
Modifier and Type Field Description

static DatasetReference.DatasetReferenceItemFactory FACTORY
Public factory to create a data set item from a native object.

Constructor Summary

Constructors
Constructor	Description
`DatasetReference(AbstractDatasetContext context, DatasetElement item)`	Creates the item reference using a a scriptale context and a data set item.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`int`	`getDatasetIndex()`	Returns the data set item index.
`DatasetElement`	`getElement()`	Returns the data set item element.
`int`	`getIndex()`	Returns the data set item data index.

Methods inherited from class org.pepstock.charba.client.commons.NativeObjectContainer
checkDefaultValuesArgument, empty, getArrayValue, getElement, getIncrementalId, getNativeChart, getNativeEvent, getNativeObject, getValue, getValue, getValue, getValue, getValue, getValue, getValue, getValue, getValue, getValue, getValue, getValue, getValue, getValueForMultipleKeyTypes, getValueForMultipleKeyTypes, getValueForMultipleKeyTypes, getValueOrArray, getValueOrArray, getValueOrArray, getValueOrArray, getValueOrArray, getValueOrArray, getValueOrArray, getValueOrArray, has, has, isType, keys, loadNativeObject, remove, remove, setArrayValue, setArrayValue, setArrayValue, setElement, setEmptyValue, setNewIncrementalId, setNewIncrementalId, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValue, setValueOrArray, setValueOrArray, setValueOrArray, setValueOrArray, setValueOrArray, setValueOrArray, setValueOrArray, setValueOrArray, setValueOrArray, setValueOrArray, toJSON, type

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

- Field Detail
  - FACTORY
```
public static final DatasetReference.DatasetReferenceItemFactory FACTORY
```
    Public factory to create a data set item from a native object.
- Constructor Detail
  - DatasetReference
```
public DatasetReference(AbstractDatasetContext context,
                        DatasetElement item)
```
    Creates the item reference using a a scriptale context and a data set item.
    
    Parameters:
    
    context - scriptable context instance
    
    item - data set item to add to the object
- Method Detail
  - getElement
```
public final DatasetElement getElement()
```
    Returns the data set item element.
    
    Returns:
    
    the data set element
  - getDatasetIndex
```
public final int getDatasetIndex()
```
    Returns the data set item index.
    
    Returns:
    
    the data set item index.
  - getIndex
```
public final int getIndex()
```
    Returns the data set item data index.
    
    Returns:
    
    the data set item data index.