org.jacorb.notification.filter.etcl

Class ExistOperator

java.lang.Object

antlr.BaseAST

org.jacorb.notification.filter.etcl.AbstractTCLNode

org.jacorb.notification.filter.etcl.ExistOperator

All Implemented Interfaces:

antlr.collections.AST, java.io.Serializable

public class ExistOperator
extends AbstractTCLNode

A simple node to represent EXIST operation

See Also:

Serialized Form

Field Summary

Fields inherited from class antlr.BaseAST

down, right

Constructor Summary

Constructors

Constructor and Description
ExistOperator(antlr.Token tok)

Method Summary

Modifier and Type	Method and Description
void	acceptInOrder(AbstractTCLVisitor visitor) accept a visitor for traversal Inorder
void	acceptPostOrder(AbstractTCLVisitor visitor) accept a visitor for traversal in Postorder.
void	acceptPreOrder(AbstractTCLVisitor visitor) accept a visitor for traversal in Preorder.
EvaluationResult	evaluate(EvaluationContext context) Evaluate this Node.
java.lang.String	toString()

Methods inherited from class org.jacorb.notification.filter.etcl.AbstractTCLNode

getName, getNameForType, getType, hasNextSibling, initialize, initialize, initialize, isBoolean, isNumber, isStatic, isString, left, printToStringBuffer, right, setType, toStringTree

Methods inherited from class antlr.BaseAST

addChild, decode, encode, equals, equalsList, equalsListPartial, equalsTree, equalsTreePartial, findAll, findAllPartial, getColumn, getFirstChild, getLine, getNextSibling, getNumberOfChildren, getText, getTokenNames, removeChildren, setFirstChild, setNextSibling, setText, setVerboseStringConversion, toStringList, xmlSerialize, xmlSerializeNode, xmlSerializeRootClose, xmlSerializeRootOpen

Methods inherited from class java.lang.Object

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

Constructor Detail

ExistOperator

public ExistOperator(antlr.Token tok)

Method Detail

toString

public java.lang.String toString()

Specified by:

toString in interface antlr.collections.AST

Overrides:

toString in class antlr.BaseAST

evaluate

public EvaluationResult evaluate(EvaluationContext context)
                          throws EvaluationException

Description copied from class: AbstractTCLNode

Evaluate this Node.

Overrides:

evaluate in class AbstractTCLNode

Parameters:

context - an EvaluationContext value contains all context information necessary for the evaluation

Returns:

an EvaluationResult value

Throws:

EvaluationException - occurs if e.g. an expression contains a reference to a non-existent struct member or if it is tried to add a string and a number

acceptInOrder

public void acceptInOrder(AbstractTCLVisitor visitor)
                   throws VisitorException

Description copied from class: AbstractTCLNode

accept a visitor for traversal Inorder

Specified by:

acceptInOrder in class AbstractTCLNode

Throws:

VisitorException

acceptPreOrder

public void acceptPreOrder(AbstractTCLVisitor visitor)
                    throws VisitorException

Description copied from class: AbstractTCLNode

accept a visitor for traversal in Preorder. the root node is visited before the left and the right subtrees are visited.

Specified by:

acceptPreOrder in class AbstractTCLNode

Throws:

VisitorException

acceptPostOrder

public void acceptPostOrder(AbstractTCLVisitor visitor)
                     throws VisitorException

Description copied from class: AbstractTCLNode

accept a visitor for traversal in Postorder. the right and left subtrees are visited before the root node is visited.

Specified by:

acceptPostOrder in class AbstractTCLNode

Throws:

VisitorException