ASTPtMethodCallNode

java.lang.Object
- ptolemy.data.expr.ASTPtRootNode
- - ptolemy.data.expr.ASTPtMethodCallNode

All Implemented Interfaces:

java.lang.Cloneable, Node
```
public class ASTPtMethodCallNode
extends ASTPtRootNode
```
The parse tree created from the expression string consists of a hierarchy of node objects. This class represents method call nodes in the parse tree.
To allow extension of the parser capabilities without modifying the kernel code, method calls on Tokens are supported with the following syntax (token).methodName(comma separated arguments).
Method arguments are processed as described in ASTPtFunctionApplicationNode. However, to allow element-by-element method calls on ArrayTokens, the following sequence is followed here to find a method to execute:
- Look for a method with tokens as supplied by PtParser.
- If that fails, convert all instances of ArrayToken to Token[] and look again, element-by-element.
- If that fails, convert all method arguments to their underlying java types and try again.
- Finally, if the above fails, convert the method object Token to its underlying java type and try again.
Since:

Ptolemy II 0.2

Version:

$Id$

Author:

Neil Smyth, University of California;, Zoltan Kemenczy, Research in Motion Limited

See Also:

ASTPtRootNode, PtParser, Token

Pt.AcceptedRating:

Red (cxh)

Pt.ProposedRating:

Yellow (nsmyth)

Field Summary

Fields
Modifier and Type Field Description

protected java.lang.String _methodName
Need to store the method name of the method call.
- Fields inherited from class ptolemy.data.expr.ASTPtRootNode
  _children, _id, _isConstant, _parent, _ptToken, _ptType

Constructor Summary

Constructors
Constructor Description

ASTPtMethodCallNode(int id)

ASTPtMethodCallNode(PtParser p, int id)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`java.lang.String`	`getMethodName()`	Return the name of the method invoked by this node.
`void`	`jjtClose()`	This method is called after all the child nodes have been added.
`void`	`visit(ParseTreeVisitor visitor)`	Traverse this node with the given visitor.

Methods inherited from class ptolemy.data.expr.ASTPtRootNode
clone, displayParseTree, evaluateParseTree, getToken, getType, isCongruent, isConstant, isEvaluated, jjtAddChild, jjtGetChild, jjtGetNumChildren, jjtGetParent, jjtOpen, jjtSetParent, setConstant, setToken, setType, toString, toString

Methods inherited from class java.lang.Object
equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Field Detail
  - _methodName
```
protected java.lang.String _methodName
```
    Need to store the method name of the method call.
- Constructor Detail
  - ASTPtMethodCallNode
```
public ASTPtMethodCallNode(int id)
```
  - ASTPtMethodCallNode
```
public ASTPtMethodCallNode(PtParser p,
                           int id)
```
- Method Detail
  - getMethodName
```
public java.lang.String getMethodName()
```
    Return the name of the method invoked by this node.
    
    Returns:
    
    the name of the method invoked by this node.
  - jjtClose
```
public void jjtClose()
```
    Description copied from interface: Node
    
    This method is called after all the child nodes have been added.
    
    Specified by:
    
    jjtClose in interface Node
    
    Overrides:
    
    jjtClose in class ASTPtRootNode
  - visit
```
public void visit(ParseTreeVisitor visitor)
           throws IllegalActionException
```
    Traverse this node with the given visitor.
    
    Overrides:
    
    visit in class ASTPtRootNode
    
    Parameters:
    
    visitor - The visitor.
    
    Throws:
    
    IllegalActionException - Always thrown in this base class the visit() method is not implemented here.