1 // Copyright 2014 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef CONTENT_BROWSER_ANDROID_JAVA_JAVA_METHOD_H_ 6 #define CONTENT_BROWSER_ANDROID_JAVA_JAVA_METHOD_H_ 7 8 #include <jni.h> 9 #include <string> 10 #include <vector> 11 12 #include "base/android/scoped_java_ref.h" 13 #include "content/browser/android/java/java_type.h" 14 #include "content/common/content_export.h" 15 16 namespace content { 17 18 // Wrapper around java.lang.reflect.Method. This class must be used on a single 19 // thread only. 20 class CONTENT_EXPORT JavaMethod { 21 public: 22 explicit JavaMethod(const base::android::JavaRef<jobject>& method); 23 ~JavaMethod(); 24 name()25 const std::string& name() const { return name_; } 26 size_t num_parameters() const; 27 bool is_static() const; 28 const JavaType& parameter_type(size_t index) const; 29 const JavaType& return_type() const; 30 jmethodID id() const; 31 32 private: 33 void EnsureNumParametersIsSetUp() const; 34 void EnsureTypesAndIDAreSetUp() const; 35 36 std::string name_; 37 mutable base::android::ScopedJavaGlobalRef<jobject> java_method_; 38 mutable bool have_calculated_num_parameters_; 39 mutable size_t num_parameters_; 40 mutable std::vector<JavaType> parameter_types_; 41 mutable JavaType return_type_; 42 mutable bool is_static_; 43 mutable jmethodID id_; 44 45 DISALLOW_IMPLICIT_CONSTRUCTORS(JavaMethod); 46 }; 47 48 } // namespace content 49 50 #endif // CONTENT_BROWSER_ANDROID_JAVA_JAVA_METHOD_H_ 51