de.odysseus.el.tree.impl.ast
Class AstFunction

java.lang.Object
  extended by de.odysseus.el.tree.impl.ast.AstNode
      extended by de.odysseus.el.tree.impl.ast.AstRightValue
          extended by de.odysseus.el.tree.impl.ast.AstFunction
All Implemented Interfaces:
ExpressionNode, FunctionNode, Node

public final class AstFunction
extends AstRightValue
implements FunctionNode


Constructor Summary
AstFunction(java.lang.String name, int index, java.util.List<AstNode> nodes)
           
 
Method Summary
 void appendStructure(java.lang.StringBuilder b, Bindings bindings)
           
 java.lang.Object eval(Bindings bindings, ELContext context)
           
 int getCardinality()
          Get the node's number of children.
 AstNode getChild(int i)
          Get i'th child
 int getIndex()
          Get the unique index of this identifier in the expression (e.g.
 java.lang.String getName()
          Get the full function name
 int getParamCount()
          Get the number of parameters for this function
 java.lang.String toString()
           
 
Methods inherited from class de.odysseus.el.tree.impl.ast.AstRightValue
getMethodInfo, getType, invoke, isLeftValue, isLiteralText, isReadOnly, setValue
 
Methods inherited from class de.odysseus.el.tree.impl.ast.AstNode
getStructuralId, getValue
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Constructor Detail

AstFunction

public AstFunction(java.lang.String name,
                   int index,
                   java.util.List<AstNode> nodes)
Method Detail

eval

public java.lang.Object eval(Bindings bindings,
                             ELContext context)
Specified by:
eval in class AstNode

toString

public java.lang.String toString()
Overrides:
toString in class java.lang.Object

appendStructure

public void appendStructure(java.lang.StringBuilder b,
                            Bindings bindings)
Specified by:
appendStructure in class AstNode

getIndex

public int getIndex()
Description copied from interface: FunctionNode
Get the unique index of this identifier in the expression (e.g. preorder index)

Specified by:
getIndex in interface FunctionNode

getName

public java.lang.String getName()
Description copied from interface: FunctionNode
Get the full function name

Specified by:
getName in interface FunctionNode

getParamCount

public int getParamCount()
Description copied from interface: FunctionNode
Get the number of parameters for this function

Specified by:
getParamCount in interface FunctionNode

getCardinality

public int getCardinality()
Description copied from interface: Node
Get the node's number of children.

Specified by:
getCardinality in interface Node

getChild

public AstNode getChild(int i)
Description copied from interface: Node
Get i'th child

Specified by:
getChild in interface Node

Copyright © 2006, 2007 Odysseus Software GmbH.