clearCompileCache method

Author: DQinYuan

README-EN-source.adoc

@@ -341,6 +341,8 @@ You can cache scripts before first execution using the following method to ensur
 include::./src/test/java/com/alibaba/qlexpress4/Express4RunnerTest.java[tag=parseToCache]
 ----
 
+Note that this cache has an unlimited size; be sure to control its size in your application. You can periodically clear the compilation cache by calling the `clearCompileCache` method.
+
 === Setting Timeout
 
 You can set a timeout for scripts to prevent infinite loops or other reasons from causing excessive consumption of application resources.

README-source.adoc

@@ -343,6 +343,8 @@ include::./src/test/java/com/alibaba/qlexpress4/Express4RunnerTest.java[tag=cach
 include::./src/test/java/com/alibaba/qlexpress4/Express4RunnerTest.java[tag=parseToCache]
 ----
 
+注意该缓存的大小是无限的，业务上注意控制大小，可以调用 `clearCompileCache` 方法定期清空编译缓存。
+
 === 设置超时时间
 
 可以给脚本设置一个超时时间，防止其中存在死循环或者其他原因导致应用资源被过量消耗。

src/main/java/com/alibaba/qlexpress4/Express4Runner.java

@@ -428,6 +428,16 @@ public Value loadField(Object object, String fieldName) {
         return reflectLoader.loadField(object, fieldName, true, PureErrReporter.INSTANCE);
     }
 
+    /**
+     * Clear the compilation cache.
+     * This method clears the cache that stores compiled scripts for performance optimization.
+     * When the cache is cleared, subsequent script executions will need to recompile the scripts,
+     * which may temporarily impact performance until the cache is rebuilt.
+     */
+    public void clearCompileCache() {
+        compileCache.clear();
+    }
+    
     private Future<QCompileCache> getParseFuture(String script) {
         Future<QCompileCache> parseFuture = compileCache.get(script);
         if (parseFuture != null) {