is Method Of Type - Android java.lang.reflect

Android examples for java.lang.reflect:Method

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Description

is Method Of Type

Demo Code

/*/*from w w w .jav  a2 s.c om*/
 * Copyright (C) 2014 The Datarobot Authors
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
//package com.java2s;
import java.lang.reflect.Method;

public class Main {
    static boolean isMethodOfType(final Method method,
            final Class<?>[] argTypes, final Class<?> type) {
        Method[] declaredMethods = type.getDeclaredMethods();
        for (Method declared : declaredMethods) {
            if (declared.getName().equals(method.getName())) {
                Class<?>[] parameterTypes = declared.getParameterTypes();
                if (parameterTypes.length == argTypes.length) {
                    boolean matches = true;
                    for (int i = 0; i < parameterTypes.length; i++) {
                        if (!matches(parameterTypes[i], argTypes[i])) {
                            matches = false;
                        }
                    }
                    if (matches) {
                        return true;
                    }
                }
            }
        }
        return false;

    }

    private static boolean matches(final Class<?> paramType,
            final Class<?> argType) {
        if (paramType.isAssignableFrom(argType)) {
            return true;
        } else {
            return isPrimitiveAssignable(paramType, argType);
        }
    }

    private static boolean isPrimitiveAssignable(final Class<?> paramType,
            final Class<?> argType) {
        if (paramType.equals(java.lang.Boolean.TYPE)
                && argType.equals(java.lang.Boolean.class)) {
            return true;
        } else if (paramType.equals(java.lang.Integer.TYPE)
                && argType.equals(java.lang.Integer.class)) {
            return true;
        } else if (paramType.equals(java.lang.Character.TYPE)
                && argType.equals(java.lang.Character.class)) {
            return true;
        } else if (paramType.equals(java.lang.Float.TYPE)
                && argType.equals(java.lang.Float.class)) {
            return true;
        } else if (paramType.equals(java.lang.Double.TYPE)
                && argType.equals(java.lang.Double.class)) {
            return true;
        } else if (paramType.equals(java.lang.Long.TYPE)
                && argType.equals(java.lang.Long.class)) {
            return true;
        } else if (paramType.equals(java.lang.Short.TYPE)
                && argType.equals(java.lang.Short.class)) {
            return true;
        }
        // In correctness there should also be a mapping for the
        // primitive array types, but no method in
        // android.database.Cursor used arrays at this point (January
        // 2014)
        return false;
    }
}

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