com.exasol.util

Class AbstractBottomUpTreeNode

java.lang.Object

com.exasol.util.AbstractBottomUpTreeNode

All Implemented Interfaces:

TreeNode

Direct Known Subclasses:

AbstractBooleanExpression, AbstractValueExpression

public abstract class AbstractBottomUpTreeNode
extends Object
implements TreeNode

This is an abstract base class for nodes in a tree structure.

Constructor Summary

Constructors

Constructor and Description
AbstractBottomUpTreeNode() Create a new instance of a AbstractBottomUpTreeNode that serves as leaf node for a tree.
AbstractBottomUpTreeNode(List<TreeNode> children) Create a new instance of a AbstractBottomUpTreeNode.
AbstractBottomUpTreeNode(TreeNode... children) Create a new instance of a AbstractBottomUpTreeNode.

Method Summary

Modifier and Type	Method and Description
void	addChild(TreeNode child) Add a child node below this node.
TreeNode	getChild(int index) Get child node by position in the list of siblings.
List<TreeNode>	getChildren() Get all child nodes of this node
TreeNode	getParent() Get the parent of this node
TreeNode	getRoot() Get the root of the tree
boolean	isChild() Check whether this node is a child node
boolean	isFirstSibling() Check whether a child is the first in the list of siblings
boolean	isRoot() Check whether this node is the root of the tree.
boolean	isSibling(TreeNode node) Check whether this node is a sibling of the second node.
void	setParent(TreeNode parent) Set a parent for this node.

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractBottomUpTreeNode

public AbstractBottomUpTreeNode()

Create a new instance of a AbstractBottomUpTreeNode that serves as leaf node for a tree.

AbstractBottomUpTreeNode

public AbstractBottomUpTreeNode(List<TreeNode> children)

Create a new instance of a AbstractBottomUpTreeNode.

Parameters:

children - child nodes to be linked to this node.

AbstractBottomUpTreeNode

public AbstractBottomUpTreeNode(TreeNode... children)

Create a new instance of a AbstractBottomUpTreeNode.

Parameters:

children - child nodes to be linked to this node.

Method Detail

getRoot

public TreeNode getRoot()

Description copied from interface: TreeNode

Get the root of the tree

Specified by:

getRoot in interface TreeNode

Returns:

root node

getParent

public TreeNode getParent()

Description copied from interface: TreeNode

Get the parent of this node

Specified by:

getParent in interface TreeNode

Returns:

parent node

addChild

public void addChild(TreeNode child)

Description copied from interface: TreeNode

Add a child node below this node. Children are registered in the order in which they are added.

Important: this also automatically creates a link in the opposite direction. All implementations must adhere to this rule.

Specified by:

addChild in interface TreeNode

Parameters:

child - child node

getChildren

public List<TreeNode> getChildren()

Description copied from interface: TreeNode

Get all child nodes of this node

Specified by:

getChildren in interface TreeNode

Returns:

child nodes

getChild

public TreeNode getChild(int index)

Description copied from interface: TreeNode

Get child node by position in the list of siblings. The position depends on the order in which the children were added.

Specified by:

getChild in interface TreeNode

Parameters:

index - position in the list of siblings

Returns:

child node at position

isRoot

public boolean isRoot()

Description copied from interface: TreeNode

Check whether this node is the root of the tree.

Specified by:

isRoot in interface TreeNode

Returns:

true if this node is the root

isChild

public boolean isChild()

Description copied from interface: TreeNode

Check whether this node is a child node

Specified by:

isChild in interface TreeNode

Returns:

true if the node is a child of another node

isSibling

public boolean isSibling(TreeNode node)

Description copied from interface: TreeNode

Check whether this node is a sibling of the second node.

Specified by:

isSibling in interface TreeNode

Parameters:

node - second node

Returns:

true if two nodes are siblings

setParent

public void setParent(TreeNode parent)

Description copied from interface: TreeNode

Set a parent for this node.

Specified by:

setParent in interface TreeNode

Parameters:

parent - a node to set as a parent

isFirstSibling

public boolean isFirstSibling()

Description copied from interface: TreeNode

Check whether a child is the first in the list of siblings

Specified by:

isFirstSibling in interface TreeNode

Returns:

true if the child is the first in the list of siblings