java.lang.Object
- edu.uci.ics.jung.algorithms.layout.LayoutDecorator<V,E>
- - edu.uci.ics.jung.visualization.layout.ObservableCachingLayout<V,E>

All Implemented Interfaces:

com.google.common.base.Function<V,java.awt.geom.Point2D>, Layout<V,E>, IterativeContext, LayoutEventSupport<V,E>, Caching, ChangeEventSupport, java.util.function.Function<V,java.awt.geom.Point2D>

Direct Known Subclasses:

PersistentLayoutImpl
```
public class ObservableCachingLayout<V,E>
extends LayoutDecorator<V,E>
implements ChangeEventSupport, Caching, LayoutEventSupport<V,E>
```
A LayoutDecorator that fires ChangeEvents when certain methods are called. Used to wrap a Layout so that the visualization components can be notified of changes.

See Also:

LayoutDecorator

Field Summary

Fields
Modifier and Type	Field	Description
`protected ChangeEventSupport`	`changeSupport`
`private java.util.List<LayoutChangeListener<V,E>>`	`layoutChangeListeners`
`protected com.google.common.cache.LoadingCache<V,java.awt.geom.Point2D>`	`locations`

Fields inherited from class edu.uci.ics.jung.algorithms.layout.LayoutDecorator
delegate

Constructor Summary

Constructors
Constructor Description

ObservableCachingLayout(Layout<V,E> delegate)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`addChangeListener(javax.swing.event.ChangeListener l)`
`void`	`addLayoutChangeListener(LayoutChangeListener<V,E> listener)`
`java.awt.geom.Point2D`	`apply(V v)`
`void`	`clear()`	clear cache
`boolean`	`done()`
`private void`	`fireLayoutChanged(V v)`
`void`	`fireStateChanged()`
`javax.swing.event.ChangeListener[]`	`getChangeListeners()`	Returns an array of all the `ChangeListener`s added with addChangeListener().
`void`	`init()`	ititialize resources for a cache
`void`	`initialize()`	Initializes fields in the node that may not have been set during the constructor.
`void`	`removeChangeListener(javax.swing.event.ChangeListener l)`	Removes a ChangeListener.
`void`	`removeLayoutChangeListener(LayoutChangeListener<V,E> listener)`
`void`	`setGraph(Graph<V,E> graph)`
`void`	`setLocation(V v, java.awt.geom.Point2D location)`	Changes the layout coordinates of `v` to `location`.
`void`	`step()`	Advances one step.

Methods inherited from class edu.uci.ics.jung.algorithms.layout.LayoutDecorator
getDelegate, getGraph, getSize, isLocked, lock, reset, setDelegate, setInitializer, setSize, transform

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

Methods inherited from interface com.google.common.base.Function
equals

Methods inherited from interface java.util.function.Function
andThen, compose

- Field Detail
  - changeSupport
```
protected ChangeEventSupport changeSupport
```
  - locations
```
protected com.google.common.cache.LoadingCache<V,java.awt.geom.Point2D> locations
```
  - layoutChangeListeners
```
private java.util.List<LayoutChangeListener<V,E>> layoutChangeListeners
```
- Constructor Detail
  - ObservableCachingLayout
```
public ObservableCachingLayout(Layout<V,E> delegate)
```
- Method Detail
  - step
```
public void step()
```
    Description copied from interface: IterativeContext
    
    Advances one step.
    
    Specified by:
    
    step in interface IterativeContext
    
    Overrides:
    
    step in class LayoutDecorator<V,E>
  - initialize
```
public void initialize()
```
    Description copied from interface: Layout
    
    Initializes fields in the node that may not have been set during the constructor. Must be called before the iterations begin.
    
    Specified by:
    
    initialize in interface Layout<V,E>
    
    Overrides:
    
    initialize in class LayoutDecorator<V,E>
  - done
```
public boolean done()
```
    Specified by:
    
    done in interface IterativeContext
    
    Overrides:
    
    done in class LayoutDecorator<V,E>
    
    Returns:
    
    true if this iterative process is finished, and false otherwise.
  - setLocation
```
public void setLocation(V v,
                        java.awt.geom.Point2D location)
```
    Description copied from interface: Layout
    
    Changes the layout coordinates of v to location.
    
    Specified by:
    
    setLocation in interface Layout<V,E>
    
    Overrides:
    
    setLocation in class LayoutDecorator<V,E>
    
    Parameters:
    
    v - the vertex whose location is to be specified
    
    location - the coordinates of the specified location
  - addChangeListener
```
public void addChangeListener(javax.swing.event.ChangeListener l)
```
    Specified by:
    
    addChangeListener in interface ChangeEventSupport
  - removeChangeListener
```
public void removeChangeListener(javax.swing.event.ChangeListener l)
```
    Description copied from interface: ChangeEventSupport
    
    Removes a ChangeListener.
    
    Specified by:
    
    removeChangeListener in interface ChangeEventSupport
    
    Parameters:
    
    l - the listener to be removed
  - getChangeListeners
```
public javax.swing.event.ChangeListener[] getChangeListeners()
```
    Description copied from interface: ChangeEventSupport
    
    Returns an array of all the ChangeListeners added with addChangeListener().
    
    Specified by:
    
    getChangeListeners in interface ChangeEventSupport
    
    Returns:
    
    all of the ChangeListeners added or an empty array if no listeners have been added
  - fireStateChanged
```
public void fireStateChanged()
```
    Specified by:
    
    fireStateChanged in interface ChangeEventSupport
  - setGraph
```
public void setGraph(Graph<V,E> graph)
```
    Specified by:
    
    setGraph in interface Layout<V,E>
    
    Overrides:
    
    setGraph in class LayoutDecorator<V,E>
    
    Parameters:
    
    graph - the graph that this algorithm is to operate on
  - clear
```
public void clear()
```
    Description copied from interface: Caching
    
    clear cache
    
    Specified by:
    
    clear in interface Caching
  - init
```
public void init()
```
    Description copied from interface: Caching
    
    ititialize resources for a cache
    
    Specified by:
    
    init in interface Caching
  - apply
```
public java.awt.geom.Point2D apply(V v)
```
    Specified by:
    
    apply in interface com.google.common.base.Function<V,E>
    
    Specified by:
    
    apply in interface java.util.function.Function<V,E>
  - fireLayoutChanged
```
private void fireLayoutChanged(V v)
```
  - addLayoutChangeListener
```
public void addLayoutChangeListener(LayoutChangeListener<V,E> listener)
```
    Specified by:
    
    addLayoutChangeListener in interface LayoutEventSupport<V,E>
  - removeLayoutChangeListener
```
public void removeLayoutChangeListener(LayoutChangeListener<V,E> listener)
```
    Specified by:
    
    removeLayoutChangeListener in interface LayoutEventSupport<V,E>

Class ObservableCachingLayout<V,​E>

Field Summary

Fields inherited from class edu.uci.ics.jung.algorithms.layout.LayoutDecorator

Constructor Summary

Method Summary

Methods inherited from class edu.uci.ics.jung.algorithms.layout.LayoutDecorator

Methods inherited from class java.lang.Object

Methods inherited from interface com.google.common.base.Function

Methods inherited from interface java.util.function.Function

Field Detail

changeSupport

locations

layoutChangeListeners

Constructor Detail

ObservableCachingLayout

Method Detail

step

initialize

done

setLocation

addChangeListener

removeChangeListener

getChangeListeners

fireStateChanged

setGraph

clear

init

apply

fireLayoutChanged

addLayoutChangeListener

removeLayoutChangeListener

Class ObservableCachingLayout<V,E>