org.lsmp.djep.matrixJep
Class MatrixNodeFactory

java.lang.Object
  org.lsmp.djep.xjep.NodeFactory
      org.lsmp.djep.matrixJep.MatrixNodeFactory

public class MatrixNodeFactory

extends NodeFactory

This class is used to create nodes of specified types. It can be subclassed to change the nature of how nodes are constructed. Generally there are two methods for creating nodes, methods which take an existing node and methods which take the components.

Author:

Rich Morris Created on 16-Nov-2003

Constructor Summary

MatrixNodeFactory()

Method Summary

ASTConstant	buildConstantNode(java.lang.Object value) Creates an ASTConstant node with specified value.
ASTFunNode	buildFunctionNode(ASTFunNode node, Node[] children) Builds a function with n arguments
ASTFunNode	buildFunctionNode(java.lang.String name, PostfixMathCommandI pfmc, Node[] arguments) Builds a function with n arguments
ASTFunNode	buildOperatorNode(Operator op, Node[] arguments) Builds a operator node with n arguments
ASTFunNode	buildOperatorNode(Operator op, Node[] arguments, Dimensions dim) create a function node with a known dimension
ASTFunNode	buildUnfinishedOperatorNode(Operator op) Creates an operator node, but don't fill in the children or calculate its dimension.
ASTVarNode	buildVariableNode(Variable var) Creates a ASTVariable node with specified value.
Dimensions	calcDim(Operator op, Node[] arguments) Calculates the dimension of node using the dimensions of the children.
Dimensions	calcDim(java.lang.String name, PostfixMathCommandI pfmc, Node[] arguments) Calculates the dimension of node using the dimensions of the children.

Methods inherited from class org.lsmp.djep.xjep.NodeFactory

buildConstantNode, buildConstantNode, buildConstantNode, buildConstantNode, buildConstantNode, buildOperatorNode, buildOperatorNode, buildVariableNode, copyChildren

Methods inherited from class java.lang.Object

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

Constructor Detail

MatrixNodeFactory

public MatrixNodeFactory()

Method Detail

buildConstantNode

public ASTConstant buildConstantNode(java.lang.Object value)
                              throws ParseException

Creates an ASTConstant node with specified value.

Overrides:

buildConstantNode in class NodeFactory

Throws:

ParseException

buildVariableNode

public ASTVarNode buildVariableNode(Variable var)
                             throws ParseException

Creates a ASTVariable node with specified value.

Overrides:

buildVariableNode in class NodeFactory

Throws:

ParseException

buildFunctionNode

public ASTFunNode buildFunctionNode(java.lang.String name,
                                    PostfixMathCommandI pfmc,
                                    Node[] arguments)
                             throws ParseException

Builds a function with n arguments

Overrides:

buildFunctionNode in class NodeFactory

Parameters:

name - of function.

pfmc - PostfixMathCommand for function.

arguments - the arguments to the function.

Returns:

top Node of expression

Throws:

ParseException

calcDim

public Dimensions calcDim(java.lang.String name,
                          PostfixMathCommandI pfmc,
                          Node[] arguments)
                   throws ParseException

Calculates the dimension of node using the dimensions of the children. Does not recurese down the tree.

Throws:

ParseException

calcDim

public Dimensions calcDim(Operator op,
                          Node[] arguments)
                   throws ParseException

Calculates the dimension of node using the dimensions of the children.

Throws:

ParseException

buildFunctionNode

public ASTFunNode buildFunctionNode(ASTFunNode node,
                                    Node[] children)
                             throws ParseException

Builds a function with n arguments

Overrides:

buildFunctionNode in class NodeFactory

Parameters:

node - the properties (name and pfmc) of this node will be copied.

children - the arguments to the function.

Returns:

top Node of expression

Throws:

ParseException

Since:

2.3.3 if possible use dimension of existing node. (Needed when deep copying MList functions)

buildOperatorNode

public ASTFunNode buildOperatorNode(Operator op,
                                    Node[] arguments)
                             throws ParseException

Builds a operator node with n arguments

Overrides:

buildOperatorNode in class NodeFactory

Parameters:

arguments - the arguments to the function.

Returns:

top Node of expression

Throws:

ParseException

buildOperatorNode

public ASTFunNode buildOperatorNode(Operator op,
                                    Node[] arguments,
                                    Dimensions dim)

create a function node with a known dimension

buildUnfinishedOperatorNode

public ASTFunNode buildUnfinishedOperatorNode(Operator op)

Creates an operator node, but don't fill in the children or calculate its dimension.

Overrides:

buildUnfinishedOperatorNode in class NodeFactory