AbstractConnector

java.lang.Object
- org.jhotdraw.draw.connector.AbstractConnector

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable, Connector, DOMStorable

Direct Known Subclasses:

ChopRectangleConnector, LocatorConnector
```
public class AbstractConnector
extends java.lang.Object
implements Connector, DOMStorable
```
This abstract class can be extended to implement a Connector.

See Also:

Connector, Serialized Form

Constructor Summary

Constructors
Constructor and Description

AbstractConnector()
Constructs a connector that has no owner.

AbstractConnector(Figure owner)
Constructs a connector with the given owner figure.

Constructors
Constructor and Description
`AbstractConnector()` Constructs a connector that has no owner.
`AbstractConnector(Figure owner)` Constructs a connector with the given owner figure.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`java.lang.Object`	`clone()` Returns a clone of the Connection.
`boolean`	`contains(java.awt.geom.Point2D.Double p)` Tests if a point is contained in the connector.
`void`	`draw(java.awt.Graphics2D g)` Draws the connector.
`java.awt.geom.Point2D.Double`	`findEnd(ConnectionFigure connection)` Finds the end point for the connection.
`protected java.awt.geom.Point2D.Double`	`findPoint(ConnectionFigure connection)` Gets the connection point.
`java.awt.geom.Point2D.Double`	`findStart(ConnectionFigure connection)` Finds the start point for the connection.
`java.awt.geom.Point2D.Double`	`getAnchor()` Gets the anchor of the connector.
`java.awt.geom.Rectangle2D.Double`	`getBounds()` Gets the bounds of the connector.
`protected Figure`	`getConnectorTarget(Figure f)`
`java.awt.geom.Rectangle2D.Double`	`getDrawingArea()` Gets the drawing area of the connector.
`Figure`	`getOwner()` Gets the connector's owner.
`boolean`	`isConnectToDecorator()`
`void`	`read(DOMInput in)`
`void`	`setConnectToDecorator(boolean newValue)`
`protected void`	`setOwner(Figure newValue)` Sets the connector's owner.
`void`	`updateAnchor(java.awt.geom.Point2D.Double p)` Updates the anchor of the connector.
`void`	`updateEndLocation(java.awt.geom.Point2D.Double p)` This is called, when the end location of the connection has been moved by the user.
`void`	`updateStartLocation(java.awt.geom.Point2D.Double p)` This is called, when the start location of the connection has been moved by the user.
`void`	`write(DOMOutput out)`

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

- Constructor Detail
  - AbstractConnector
```
public AbstractConnector()
```
    Constructs a connector that has no owner. It is only used internally to resurrect a connectors from a StorableOutput. It should never be called directly.
  - AbstractConnector
```
public AbstractConnector(Figure owner)
```
    Constructs a connector with the given owner figure.
- Method Detail
  - setConnectToDecorator
```
public void setConnectToDecorator(boolean newValue)
```
  - isConnectToDecorator
```
public boolean isConnectToDecorator()
```
  - getConnectorTarget
```
protected final Figure getConnectorTarget(Figure f)
```
  - contains
```
public boolean contains(java.awt.geom.Point2D.Double p)
```
    Tests if a point is contained in the connector.
    
    Specified by:
    
    contains in interface Connector
  - findStart
```
public java.awt.geom.Point2D.Double findStart(ConnectionFigure connection)
```
    Description copied from interface: Connector
    
    Finds the start point for the connection.
    
    Specified by:
    
    findStart in interface Connector
  - findEnd
```
public java.awt.geom.Point2D.Double findEnd(ConnectionFigure connection)
```
    Description copied from interface: Connector
    
    Finds the end point for the connection.
    
    Specified by:
    
    findEnd in interface Connector
  - findPoint
```
protected java.awt.geom.Point2D.Double findPoint(ConnectionFigure connection)
```
    Gets the connection point. Override when the connector does not need to distinguish between the start and end point of a connection.
  - getOwner
```
public Figure getOwner()
```
    Gets the connector's owner.
    
    Specified by:
    
    getOwner in interface Connector
  - setOwner
```
protected void setOwner(Figure newValue)
```
    Sets the connector's owner.
  - clone
```
public java.lang.Object clone()
```
    Description copied from interface: Connector
    
    Returns a clone of the Connection.
    
    Specified by:
    
    clone in interface Connector
    
    Overrides:
    
    clone in class java.lang.Object
  - updateStartLocation
```
public void updateStartLocation(java.awt.geom.Point2D.Double p)
```
    This is called, when the start location of the connection has been moved by the user. The user has this probably done, to adjust the layout. The connector may use this as a hint to improve the results for the next call to findEnd.
  - updateEndLocation
```
public void updateEndLocation(java.awt.geom.Point2D.Double p)
```
    This is called, when the end location of the connection has been moved by the user. The user has this probably done, to adjust the layout. The connector may use this as a hint to improve the results for the next call to findStart.
  - getAnchor
```
public java.awt.geom.Point2D.Double getAnchor()
```
    Description copied from interface: Connector
    
    Gets the anchor of the connector. This is a point at the center or at the bounds of the figure, where the start or the end point will most likely be attached. The purpose of this method is to give the user a hint, where the connector will most likely be attached to the owner of the connector.
    
    Specified by:
    
    getAnchor in interface Connector
  - updateAnchor
```
public void updateAnchor(java.awt.geom.Point2D.Double p)
```
    Description copied from interface: Connector
    
    Updates the anchor of the connector. This method is called when the user manually changes the end point of the ConnectionFigure. The Connector uses this as a hint for choosing a new anchor position.
    
    Specified by:
    
    updateAnchor in interface Connector
  - getBounds
```
public java.awt.geom.Rectangle2D.Double getBounds()
```
    Description copied from interface: Connector
    
    Gets the bounds of the connector. This usually are the bounds of the Figure which owns the Connector. The bounds can differ from the Figure bounds, if the Connector connects to a specific region of the Figure.
    
    Specified by:
    
    getBounds in interface Connector
  - read
```
public void read(DOMInput in)
          throws java.io.IOException
```
    Specified by:
    
    read in interface DOMStorable
    
    Throws:
    
    java.io.IOException
  - write
```
public void write(DOMOutput out)
           throws java.io.IOException
```
    Specified by:
    
    write in interface DOMStorable
    
    Throws:
    
    java.io.IOException
  - getDrawingArea
```
public java.awt.geom.Rectangle2D.Double getDrawingArea()
```
    Description copied from interface: Connector
    
    Gets the drawing area of the connector.
    
    Specified by:
    
    getDrawingArea in interface Connector
  - draw
```
public void draw(java.awt.Graphics2D g)
```
    Description copied from interface: Connector
    
    Draws the connector.
    
    Specified by:
    
    draw in interface Connector

Class AbstractConnector

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

AbstractConnector

AbstractConnector

Method Detail

setConnectToDecorator

isConnectToDecorator

getConnectorTarget

contains

findStart

findEnd

findPoint

getOwner

setOwner

clone

updateStartLocation

updateEndLocation

getAnchor

updateAnchor

getBounds

read

write

getDrawingArea

draw