Item (gephi 0.9.3 API)

```
public interface Item
```
An item is a visual element built by an ItemBuilder and later used by a Renderer to be displayed.
An item simply stores the reference to the original object (e.g. node, edge) and all the information useful for the Renderer like the color, size or position.
All items can be retrieved from the PreviewModel.

Author:

Yudi Xue, Mathieu Bastian

Field Summary

Fields
Modifier and Type Field Description

static String EDGE

static String EDGE_LABEL

static String NODE

static String NODE_LABEL

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`<D> D`	`getData(String key)`	Returns data associated to this item.
`String[]`	`getKeys()`	Returns all the keys.
`Object`	`getSource()`	Returns the source of the item.
`String`	`getType()`	Returns the type of the item.
`void`	`setData(String key, Object value)`	Sets data to this item.

- Field Detail
  - NODE
```
static final String NODE
```
    See Also:
    
    Constant Field Values
  - EDGE
```
static final String EDGE
```
    See Also:
    
    Constant Field Values
  - NODE_LABEL
```
static final String NODE_LABEL
```
    See Also:
    
    Constant Field Values
  - EDGE_LABEL
```
static final String EDGE_LABEL
```
    See Also:
    
    Constant Field Values
- Method Detail
  - getSource
```
Object getSource()
```
    Returns the source of the item. The source is usually a graph object like a Node or Edge.
    
    Returns:
    
    the item's source object
  - getType
```
String getType()
```
    Returns the type of the item. Default types are Item.NODE, Item.EDGE, Item.NODE_LABEL and Item.EDGE_LABEL.
    
    Returns:
    
    the item's type
  - getData
```
<D> D getData(String key)
```
    Returns data associated to this item.
    
    Type Parameters:
    
    D - the type of the data
    
    Parameters:
    
    key - the key
    
    Returns:
    
    the value associated to key, or null if not exist
  - setData
```
void setData(String key,
             Object value)
```
    Sets data to this item.
    
    Parameters:
    
    key - the key
    
    value - the value to be associated with key
  - getKeys
```
String[] getKeys()
```
    Returns all the keys. That allows to enumerate all data associated with this item.
    
    Returns:
    
    all keys