org.mvel2.util

Interface ASTIterator

All Superinterfaces:

Serializable

All Known Implementing Classes:

ASTLinkedList

public interface ASTIterator
extends Serializable

The ASTIterator interface defines the functionality required by the enginer, for compiletime and runtime operations. Unlike other script implementations, MVEL does not use a completely normalized AST tree for it's execution. Instead, nodes are organized into a linear order and delivered via this iterator interface, much like bytecode instructions.

Method Summary

Methods

Modifier and Type	Method and Description
void	addTokenNode(ASTNode node)
void	addTokenNode(ASTNode node1, ASTNode node2)
void	back()
void	finish()
ASTNode	firstNode()
boolean	hasMoreNodes()
int	index()
ASTNode	nextNode()
ASTNode	nodesAhead(int offset)
ASTNode	nodesBack(int offset)
ASTNode	peekLast()
ASTNode	peekNext()
ASTNode	peekNode()
void	reset()
String	showNodeChain()
int	size()
void	skipNode()

Method Detail

reset

void reset()

nextNode

ASTNode nextNode()

skipNode

void skipNode()

peekNext

ASTNode peekNext()

peekNode

ASTNode peekNode()

peekLast

ASTNode peekLast()

back

void back()

nodesBack

ASTNode nodesBack(int offset)

nodesAhead

ASTNode nodesAhead(int offset)

hasMoreNodes

boolean hasMoreNodes()

showNodeChain

String showNodeChain()

firstNode

ASTNode firstNode()

size

int size()

index

int index()

finish

void finish()

addTokenNode

void addTokenNode(ASTNode node)

addTokenNode

void addTokenNode(ASTNode node1,
                ASTNode node2)