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

java.lang.Object
  de.odysseus.el.tree.impl.ast.AstNode
      de.odysseus.el.tree.impl.ast.AstRightValue
          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