psuedo code 3

class TreeNode{
private TreeNode mLeft;
private TreeNode mRightUp;
private TreeNode mRightDown;
private TreeNode mParent;
private Pairing mPair;

public TreeNode(TreeNode left, TreeNode rightUp, TreeNode, rightDown, TreeNode parent, pairing pair){
this.mLeft = left;
this.mRightUp = rightUp;
this.mRightDown = rightDown;
this.mParent = parent;
this.mPair = pair;
}

public pairing getPair(){
return mPair;
}

public void setPair(Pairing pair){
this.mPair = pair;
}

public TreeNode getLeft(){
return mLeft;
}

public TreeNode getRightUp(){
return mRightUp;
}

public TreeNode getRightDown(){
return mRightDown;
}

public TreeNode getParent(){
return mParent;
}

public void setLeft(TreeNode left){
this.mLeft = left;
mLeft.parent = this;
}

public void setRightUp(TreeNode rightUp){
this.mRightUp = rightUp;
mRightUp.parent = this;
}

public void setRightDown(TreeNode rightDown){
this.mRightDown = rightDown;
mRightDown.parent = this;
}

public void setParent(TreeNode parent){ // is this still needed becuase i set parent in the other setters?
this.mParent=parent;
}