csheets.core.formula.util
Class ExpressionTreePrinter

java.lang.Object
  csheets.core.formula.util.AbstractExpressionVisitor
      csheets.core.formula.util.ExpressionTreePrinter

All Implemented Interfaces:

ExpressionVisitor

public class ExpressionTreePrinter
extends AbstractExpressionVisitor

A class for printing expressions on multiple lines with indentation.

Author:

Einar Pehrson

Field Summary

static int

INDENT_DISTANCE The number of spaces to use for each indentation unit

Constructor Summary

ExpressionTreePrinter()
Creates a new expression printer.

Method Summary

Object	visitBinaryOperation(BinaryOperation operation) Visits the given binary expression.
Object	visitFunctionCall(FunctionCall call) Visits the given function call.
Object	visitLiteral(Literal literal) Visits the given literal.
Object	visitReference(Reference reference) Visits the given cell reference.
Object	visitUnaryOperation(UnaryOperation operation) Visits the given unary expression.

Methods inherited from class java.lang.Object

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

Field Detail

INDENT_DISTANCE

public static final int INDENT_DISTANCE

The number of spaces to use for each indentation unit

See Also:

Constant Field Values

Constructor Detail

ExpressionTreePrinter

public ExpressionTreePrinter()

Creates a new expression printer.

Method Detail

visitLiteral

public Object visitLiteral(Literal literal)

Description copied from interface: ExpressionVisitor

Visits the given literal.

Specified by:

visitLiteral in interface ExpressionVisitor

Overrides:

visitLiteral in class AbstractExpressionVisitor

Parameters:

literal - the literal to visit

Returns:

an arbitrary object

visitUnaryOperation

public Object visitUnaryOperation(UnaryOperation operation)

Description copied from interface: ExpressionVisitor

Visits the given unary expression.

Specified by:

visitUnaryOperation in interface ExpressionVisitor

Overrides:

visitUnaryOperation in class AbstractExpressionVisitor

Parameters:

operation - the operation to visit

Returns:

an arbitrary object

visitBinaryOperation

public Object visitBinaryOperation(BinaryOperation operation)

Description copied from interface: ExpressionVisitor

Visits the given binary expression.

Specified by:

visitBinaryOperation in interface ExpressionVisitor

Overrides:

visitBinaryOperation in class AbstractExpressionVisitor

Parameters:

operation - the operation to visit

Returns:

an arbitrary object

visitReference

public Object visitReference(Reference reference)

Description copied from interface: ExpressionVisitor

Visits the given cell reference.

Specified by:

visitReference in interface ExpressionVisitor

Overrides:

visitReference in class AbstractExpressionVisitor

Parameters:

reference - the reference to visit

Returns:

an arbitrary object

visitFunctionCall

public Object visitFunctionCall(FunctionCall call)

Description copied from interface: ExpressionVisitor

Visits the given function call.

Specified by:

visitFunctionCall in interface ExpressionVisitor

Overrides:

visitFunctionCall in class AbstractExpressionVisitor

Parameters:

call - the function call to visit

Returns:

an arbitrary object