csheets.core.formula.lang
Class Language

java.lang.Object
  csheets.core.formula.lang.Language

public class Language
extends Object

A factory for creating certain types of language elements.

Author:

Einar Pehrson

Method Summary

BinaryOperator	getBinaryOperator(String identifier) Returns the binary operator with the given identifier.
Function	getFunction(String identifier) Returns the function with the given identifier.
Function[]	getFunctions() Returns the functions that are supported by the syntax.
static Language	getInstance() Returns the singleton instance.
UnaryOperator	getUnaryOperator(String identifier) Returns the unary operator with the given identifier.
boolean	hasFunction(String identifier) Returns whether there is a function with the given identifier.

Methods inherited from class java.lang.Object

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

Method Detail

getInstance

public static Language getInstance()

Returns the singleton instance.

Returns:

the singleton instance

getUnaryOperator

public UnaryOperator getUnaryOperator(String identifier)
                               throws UnknownElementException

Returns the unary operator with the given identifier.

Returns:

the unary operator with the given identifier

Throws:

UnknownElementException

getBinaryOperator

public BinaryOperator getBinaryOperator(String identifier)
                                 throws UnknownElementException

Returns the binary operator with the given identifier.

Returns:

the binary operator with the given identifier

Throws:

UnknownElementException

getFunction

public Function getFunction(String identifier)
                     throws UnknownElementException

Returns the function with the given identifier.

Returns:

the function with the given identifier

Throws:

UnknownElementException

hasFunction

public boolean hasFunction(String identifier)

Returns whether there is a function with the given identifier.

Returns:

whether there is a function with the given identifier

getFunctions

public Function[] getFunctions()

Returns the functions that are supported by the syntax.

Returns:

the functions that are supported by the syntax