Class VanExpressions

java.lang.Object

dev.vanengine.core.runtime.VanExpressions

public class VanExpressions
extends Object

Evaluates JavaScript-like expressions against a Java data model.

Two-phase design: expressions are compiled once into an VanExpressions.Expr tree, then evaluated many times against different scopes. Compiled expressions are cached globally — the same expression string is never re-parsed.

Thread-safe and stateless.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	VanExpressions.Expr	A compiled expression that can be evaluated against any scope.

Method Summary

Modifier and Type	Method	Description
static VanExpressions.Expr	compile(String expr)	Compile an expression string into a reusable Expr (for direct use).
static Object	evaluate(String expr, Map<String,?> scope)
static boolean	isTruthy(Object value)
static boolean	isTruthy(String expr, Map<String,?> scope)
static Object	resolvePath(String path, Map<String,?> scope)

Methods inherited from class Object

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

Method Details

evaluate

public static Object evaluate(String expr,
 Map<String,?> scope)

isTruthy

public static boolean isTruthy(String expr,
 Map<String,?> scope)

isTruthy

public static boolean isTruthy(Object value)

resolvePath

public static Object resolvePath(String path,
 Map<String,?> scope)

compile

public static VanExpressions.Expr compile(String expr)

Compile an expression string into a reusable Expr (for direct use).