Class ExpressionTree

java.lang.Object

com.igormaznitsa.jcp.expression.ExpressionTree

public class ExpressionTree
extends Object

The class describes an object contains an expression tree

Author:

Igor Maznitsa (igor.maznitsa@igormaznitsa.com)

Constructor Summary

Constructors

Constructor	Description
ExpressionTree()
ExpressionTree(FilePositionInfo[] callStack, String sources)

Method Summary

Modifier and Type	Method	Description
void	addItem(ExpressionItem item)	Add new expression item into tree
void	addTree(ExpressionTree tree)	Add whole tree as a tree element, also it sets the maximum priority to the new element
ExpressionTreeElement	getRoot()	Get the root of the tree
boolean	isEmpty()	Allows to check that the tree is empty
void	postProcess()	It can be called after the tree has been formed to optimize inside structures

Methods inherited from class Object

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

Constructor Details

ExpressionTree

public ExpressionTree()

ExpressionTree

public ExpressionTree(@MustNotContainNull
 FilePositionInfo[] callStack,
 String sources)

Method Details

isEmpty

public boolean isEmpty()

Allows to check that the tree is empty

Returns:

true if the tree is empty one else false

addItem

public void addItem(ExpressionItem item)

Add new expression item into tree

Parameters:

item - an item to be added, must not be null

addTree

public void addTree(ExpressionTree tree)

Add whole tree as a tree element, also it sets the maximum priority to the new element

Parameters:

tree - a tree to be added as an item, must not be null

getRoot

public ExpressionTreeElement getRoot()

Get the root of the tree

Returns:

the root of the tree or EMPTY_SLOT if the tree is empty

postProcess

public void postProcess()

It can be called after the tree has been formed to optimize inside structures