Package org.tweetyproject.lp.asp.parser

Class SimpleNode

java.lang.Object

org.tweetyproject.lp.asp.parser.SimpleNode

All Implemented Interfaces:

Node

Direct Known Subclasses:

ASTAggregate, ASTAggrElement, ASTAggrElementList, ASTAggrFunc, ASTAnswerSet, ASTAriTerm, ASTArithop, ASTBinop, ASTBody, ASTBodyList, ASTBuiltInAtom, ASTChoice, ASTChoiceElement, ASTChoiceElementList, ASTClingoID, ASTClingoMeta, ASTDlvArithmeticID, ASTDlvID, ASTHead, ASTHeadElementsList, ASTID, ASTLiteral, ASTNAFLiteral, ASTNAFLiteralList, ASTNumber, ASTOpt, ASTOptElement, ASTOptElementList, ASTOptFunc, ASTProgram, ASTQuery, ASTRule, ASTRuleList, ASTString, ASTTerm, ASTTermList, ASTVar, ASTWeight

public class SimpleNode
extends Object
implements Node

A base class representing a node in the abstract syntax tree (AST) for the ASPParser.

This class implements the basic operations for managing the structure of the tree, including parent-child relationships and visitor acceptance. It provides a foundation that can be extended to represent specific types of nodes in the AST.

Constructor Summary

Constructors

Constructor	Description
SimpleNode(int i)	Constructs a new SimpleNode with the specified node identifier.
SimpleNode(ASPParser p, int i)	Constructs a new SimpleNode with the specified parser and node identifier.

Method Summary

Modifier and Type	Method	Description
Object	childrenAccept(ASPParserVisitor visitor, Object data)	Accepts the visitor and allows it to visit all the children of this node.
void	dump(String prefix)	Dumps the structure of this node and its children, including their string representations.
Object	jjtAccept(ASPParserVisitor visitor, Object data)	Accepts the visitor and allows it to visit this node.
void	jjtAddChild(Node n, int i)	Adds a child node to this node at the specified index.
void	jjtClose()	Called when this node is closed.
Node	jjtGetChild(int i)	Gets the child node at the specified index.
int	jjtGetNumChildren()	Gets the number of children this node has.
Node	jjtGetParent()	Gets the parent of this node in the AST.
Object	jjtGetValue()	Gets the value associated with this node.
void	jjtOpen()	Called when this node is opened.
void	jjtSetParent(Node n)	Sets the parent of this node in the AST.
void	jjtSetValue(Object value)	Sets the value associated with this node.
String	toString()	Returns a string representation of this node.
String	toString(String prefix)	Returns a string representation of this node with a specified prefix.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Details

SimpleNode

public SimpleNode(int i)

Constructs a new SimpleNode with the specified node identifier.

Parameters:

i - The identifier for this node.

SimpleNode

public SimpleNode(ASPParser p,
 int i)

Constructs a new SimpleNode with the specified parser and node identifier.

Parameters:

p - The parser that created this node.

i - The identifier for this node.

Method Details

jjtOpen

public void jjtOpen()

Called when this node is opened. This method is meant to be overridden by subclasses if needed.

Specified by:

jjtOpen in interface Node

jjtClose

public void jjtClose()

Called when this node is closed. This method is meant to be overridden by subclasses if needed.

Specified by:

jjtClose in interface Node

jjtSetParent

public void jjtSetParent(Node n)

Sets the parent of this node in the AST.

Specified by:

jjtSetParent in interface Node

Parameters:

n - The parent node.

jjtGetParent

public Node jjtGetParent()

Gets the parent of this node in the AST.

Specified by:

jjtGetParent in interface Node

Returns:

The parent node.

jjtAddChild

public void jjtAddChild(Node n,
 int i)

Adds a child node to this node at the specified index.

Specified by:

jjtAddChild in interface Node

Parameters:

n - The child node to add.

i - The index at which to add the child node.

jjtGetChild

public Node jjtGetChild(int i)

Gets the child node at the specified index.

Specified by:

jjtGetChild in interface Node

Parameters:

i - The index of the child node to retrieve.

Returns:

The child node at the specified index.

jjtGetNumChildren

public int jjtGetNumChildren()

Gets the number of children this node has.

Specified by:

jjtGetNumChildren in interface Node

Returns:

The number of children.

jjtSetValue

public void jjtSetValue(Object value)

Sets the value associated with this node.

Parameters:

value - The value to associate with this node.

jjtGetValue

public Object jjtGetValue()

Gets the value associated with this node.

Returns:

The value associated with this node.

jjtAccept

public Object jjtAccept(ASPParserVisitor visitor,
 Object data)

Accepts the visitor and allows it to visit this node.

Specified by:

jjtAccept in interface Node

Parameters:

visitor - The visitor object.

data - Additional data for the visitor.

Returns:

The result of visiting this node.

childrenAccept

public Object childrenAccept(ASPParserVisitor visitor,
 Object data)

Accepts the visitor and allows it to visit all the children of this node.

Parameters:

visitor - The visitor object.

data - Additional data for the visitor.

Returns:

The data passed to the visitor.

toString

public String toString()

Returns a string representation of this node.

This method can be overridden in subclasses to customize the string representation.

Overrides:

toString in class Object

Returns:

A string representing this node.

toString

public String toString(String prefix)

Returns a string representation of this node with a specified prefix.

This method can be overridden in subclasses to customize the string representation with a prefix.

Parameters:

prefix - The prefix to prepend to the string representation.

Returns:

A string representing this node with the specified prefix.

dump

public void dump(String prefix)

Dumps the structure of this node and its children, including their string representations.

This method can be overridden in subclasses to customize how the node and its children are dumped.

Parameters:

prefix - The prefix to prepend to the string representation of each node.