org.apache.commons.jexl.parser
Class ASTIfStatement

java.lang.Object
  extended by org.apache.commons.jexl.parser.SimpleNode
      extended by org.apache.commons.jexl.parser.ASTIfStatement
All Implemented Interfaces:
Node

public class ASTIfStatement
extends SimpleNode

if ( expression ) statement [else statement].

Since:
1.1
Author:
Dion Gillard

Field Summary
private static int ELSE_STATEMENT_INDEX
          child index of the else statement to execute.
 
Fields inherited from class org.apache.commons.jexl.parser.SimpleNode
children, id, parent, parser
 
Constructor Summary
ASTIfStatement(int id)
          Create the node given an id.
ASTIfStatement(Parser p, int id)
          Create a node with the given parser and id.
 
Method Summary
 java.lang.Object jjtAccept(ParserVisitor visitor, java.lang.Object data)
          Accept the visitor.
 java.lang.Object value(JexlContext jc)
          Gets the value of this node.
 
Methods inherited from class org.apache.commons.jexl.parser.SimpleNode
childrenAccept, dump, execute, interpret, jjtAddChild, jjtClose, jjtGetChild, jjtGetNumChildren, jjtGetParent, jjtOpen, jjtSetParent, setValue, toString, toString
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Field Detail

ELSE_STATEMENT_INDEX

private static final int ELSE_STATEMENT_INDEX
child index of the else statement to execute.

See Also:
Constant Field Values
Constructor Detail

ASTIfStatement

public ASTIfStatement(int id)
Create the node given an id.

Parameters:
id - node id.

ASTIfStatement

public ASTIfStatement(Parser p,
                      int id)
Create a node with the given parser and id.

Parameters:
p - a parser.
id - node id.
Method Detail

jjtAccept

public java.lang.Object jjtAccept(ParserVisitor visitor,
                                  java.lang.Object data)
Accept the visitor.

Specified by:
jjtAccept in interface Node
Overrides:
jjtAccept in class SimpleNode
Parameters:
visitor - a ParserVisitor.
data - data to be passed along to the visitor.
Returns:
the value from visiting.
See Also:
ParserVisitor.visit(org.apache.commons.jexl.parser.SimpleNode, java.lang.Object)

value

public java.lang.Object value(JexlContext jc)
                       throws java.lang.Exception
Gets the value of this node.

Overrides:
value in class SimpleNode
Parameters:
jc - the context to retrieve values from.
Returns:
the value of the node.
Throws:
java.lang.Exception - when evaluating the operands fails.