Package cl.obcom.desktopfx.expr

Compiler and Expression Library.

See: Description

Interface Summary

Interface	Description
Expression	Represents a compiled expression.

Class Summary

Class	Description
Compiler	Expression compiler.
Function	Function evaluator that can be used in an Expression.

Exception Summary

Exception	Description
ExpressionException	Signals that an Expression exception of some sort has occurred.

Package cl.obcom.desktopfx.expr Description

Compiler and Expression Library. Classes and interfaces for compiling and evaluating desktop expressions.

A desktop expression is a simplified version of a Java expression, and it includes conditional, comparator, addition, multiplication and uniry operators. A desktop expression can also invoke built-in and user-defined functions. Class Compiler defines the BNF grammar of expressions, and the list of built-in functions.

A user-defined function is implemented in Java, and it can access the entire desktop and Java environment. These functions must be registered before an expression is compiled and evaluated.

See Also:

Compiler, Expression, Function