# Class JointDef

java.lang.Object
com.codename1.gaming.physics.box2d.dynamics.joints.JointDef

Direct Known Subclasses:
  `ConstantVolumeJointDef, DistanceJointDef, FrictionJointDef, GearJointDef, MouseJointDef, PrismaticJointDef, PulleyJointDef, RevoluteJointDef, RopeJointDef, WeldJointDef, WheelJointDef`

public class JointDef extends Object
Joint definitions are used to construct joints.

- ## Field Summary

  Fields
  Modifier and Type
  Field
  Description
  `Body`
  `bodyA`
  The first attached body.
  `Body`
  `bodyB`
  The second attached body.
  `boolean`
  `collideConnected`
  Set this flag to true if the attached bodies should collide.
  `JointType`
  `type`
  The joint type is set automatically for concrete joint types.
  `Object`
  `userData`
  Use this to attach application specific data to your joints.

- ## Constructor Summary

  Constructors
  Constructor
  Description
  `JointDef()`

- ## Method Summary

  ### Methods inherited from class Object

  `clone, equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

- ## Field Details

  - ### type

    public JointType type
    The joint type is set automatically for concrete joint types.

  - ### userData

    public Object userData
    Use this to attach application specific data to your joints.

  - ### bodyA

    public Body bodyA
    The first attached body.

  - ### bodyB

    public Body bodyB
    The second attached body.

  - ### collideConnected

    public boolean collideConnected
    Set this flag to true if the attached bodies should collide.

- ## Constructor Details

  - ### JointDef

    public JointDef()