org.tinygroup.jspengine.el.parser

Interface Node

All Known Implementing Classes:

ArithmeticNode, AstAnd, AstBracketSuffix, AstChoice, AstCompositeExpression, AstDeferredExpression, AstDiv, AstDotSuffix, AstDynamicExpression, AstEmpty, AstEqual, AstFalse, AstFloatingPoint, AstFunction, AstGreaterThan, AstGreaterThanEqual, AstIdentifier, AstInteger, AstLessThan, AstLessThanEqual, AstLiteralExpression, AstMinus, AstMod, AstMult, AstNegative, AstNot, AstNotEqual, AstNull, AstOr, AstPlus, AstString, AstTrue, AstValue, BooleanNode, SimpleNode

public interface Node

Version:

$Change: 181177 $$DateTime: 2001/06/26 08:45:09 $$Author: tcfujii $

Author:

Jacob Hookom [jacob@hookom.net]

Method Summary

Modifier and Type	Method and Description
void	accept(NodeVisitor visitor)
boolean	equals(Object n)
String	getImage()
javax.el.MethodInfo	getMethodInfo(EvaluationContext ctx, Class[] paramTypes)
Class	getType(EvaluationContext ctx)
Object	getValue(EvaluationContext ctx)
int	hashCode()
Object	invoke(EvaluationContext ctx, Class[] paramTypes, Object[] paramValues)
boolean	isReadOnly(EvaluationContext ctx)
void	jjtAddChild(Node n, int i) This method tells the node to add its argument to the node's list of children.
void	jjtClose() This method is called after all the child nodes have been added.
Node	jjtGetChild(int i) This method returns a child node.
int	jjtGetNumChildren() Return the number of children the node has.
Node	jjtGetParent()
void	jjtOpen() This method is called after the node has been made the current node.
void	jjtSetParent(Node n) This pair of methods are used to inform the node of its parent.
void	setValue(EvaluationContext ctx, Object value)

Method Detail

jjtOpen

void jjtOpen()

This method is called after the node has been made the current node. It indicates that child nodes can now be added to it.

jjtClose

void jjtClose()

This method is called after all the child nodes have been added.

jjtSetParent

void jjtSetParent(Node n)

This pair of methods are used to inform the node of its parent.

jjtGetParent

Node jjtGetParent()

jjtAddChild

void jjtAddChild(Node n,
                 int i)

This method tells the node to add its argument to the node's list of children.

jjtGetChild

Node jjtGetChild(int i)

This method returns a child node. The children are numbered from zero, left to right.

jjtGetNumChildren

int jjtGetNumChildren()

Return the number of children the node has.

getImage

String getImage()

getValue

Object getValue(EvaluationContext ctx)
         throws javax.el.ELException

Throws:

javax.el.ELException

setValue

void setValue(EvaluationContext ctx,
              Object value)
       throws javax.el.ELException

Throws:

javax.el.ELException

getType

Class getType(EvaluationContext ctx)
       throws javax.el.ELException

Throws:

javax.el.ELException

isReadOnly

boolean isReadOnly(EvaluationContext ctx)
            throws javax.el.ELException

Throws:

javax.el.ELException

accept

void accept(NodeVisitor visitor)
     throws javax.el.ELException

Throws:

javax.el.ELException

getMethodInfo

javax.el.MethodInfo getMethodInfo(EvaluationContext ctx,
                                  Class[] paramTypes)
                           throws javax.el.ELException

Throws:

javax.el.ELException

invoke

Object invoke(EvaluationContext ctx,
              Class[] paramTypes,
              Object[] paramValues)
       throws javax.el.ELException

Throws:

javax.el.ELException

equals

boolean equals(Object n)

Overrides:

equals in class Object

hashCode

int hashCode()

Overrides:

hashCode in class Object