Example usage for java.lang Class getDeclaredMethod

Introduction

In this page you can find the example usage for java.lang Class getDeclaredMethod.

Prototype

@CallerSensitive
public Method getDeclaredMethod(String name, Class<?>... parameterTypes)
        throws NoSuchMethodException, SecurityException 

Source Link

Document

Returns a Method object that reflects the specified declared method of the class or interface represented by this Class object.

Usage

From source file:au.com.dw.testdatacapturej.reflection.util.ReflectionUtil.java

/**
 * Check if a class has a default setter method for a field, using the specific class of the field only.
 * i.e. no superclasses or interfaces.//w  ww  .ja  v a2 s . c o  m
 *
 * Since we may want to invoke the setter method, abstract methods are not included (i.e. will return
 * false).
 *
 * @param clazz
 * @param parameterClass
 * @param setterMethodName
 * @return
 */
private static boolean hasSetterMethodForParameterClass(Class<?> clazz, String setterMethodName,
        Class<?> parameterClass) {
    boolean hasSetterMethodForParameterClass = false;

    try {
        Method method = clazz.getDeclaredMethod(setterMethodName, parameterClass);
        if (method != null) {
            int mod = method.getModifiers();
            // ignore abstract methods
            if (!Modifier.isAbstract(mod)) {
                hasSetterMethodForParameterClass = true;
            }
        }
    } catch (NoSuchMethodException nsme) {
        // no need to do anything, since this is what we are checking for
    } catch (Exception e) {
        e.printStackTrace();
    }
    return hasSetterMethodForParameterClass;
}

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From source file:ml.shifu.shifu.util.ClassUtils.java

public static Method getDeclaredMethod(String methodName, Class<?> clazz) throws NoSuchMethodException {
    String key = clazz.getName() + "#" + methodName;
    Method cacheMethod = METHOD_CACHE.get(key);
    if (cacheMethod != null) {
        return cacheMethod;
    }/*w w  w  . ja v  a 2  s .  co  m*/
    return clazz.getDeclaredMethod(methodName, ClassUtils.EMPTY_CLASS_ARRAY);
}

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From source file:org.zywx.wbpalmstar.plugin.uexiconlist.utils.IconListUtils.java

/**
 * ???/* w w w .ja  va  2  s  . co  m*/
 * 
 * @param className
 *            ??
 * @param methodName
 *            ??
 * @param parmTypeList
 *            ?
 * @return
 */
public static Method getReflectionMethod(String className, String methodName, Class<?>[] parmTypeList) {
    Method mMethod = null;
    try {
        Class<?> mClass = Class.forName(className);
        try {
            /** ?methodName, parmList?public?public */
            mMethod = mClass.getDeclaredMethod(methodName, parmTypeList);
            mMethod.setAccessible(true);
        } catch (NoSuchMethodException e) {
            e.printStackTrace();
        }
    } catch (ClassNotFoundException e) {
        e.printStackTrace();
    }
    return mMethod;
}

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From source file:com.frostwire.android.gui.UniversalScanner.java

private static Uri nativeScanFile(Context context, String path) {
    try {// w  ww .ja  v  a  2  s. co  m
        File f = new File(path);

        Class<?> clazz = Class.forName("android.media.MediaScanner");

        Constructor<?> mediaScannerC = clazz.getDeclaredConstructor(Context.class);
        Object scanner = mediaScannerC.newInstance(context);

        try {
            Method setLocaleM = clazz.getDeclaredMethod("setLocale", String.class);
            setLocaleM.invoke(scanner, Locale.US.toString());
        } catch (Throwable e) {
            e.printStackTrace();
        }

        Field mClientF = clazz.getDeclaredField("mClient");
        mClientF.setAccessible(true);
        Object mClient = mClientF.get(scanner);

        Method scanSingleFileM = clazz.getDeclaredMethod("scanSingleFile", String.class, String.class,
                String.class);
        Uri fileUri = (Uri) scanSingleFileM.invoke(scanner, f.getAbsolutePath(), "external", "data/raw");
        int n = context.getContentResolver().delete(fileUri, null, null);
        if (n > 0) {
            LOG.debug("Deleted from Files provider: " + fileUri);
        }

        Field mNoMediaF = mClient.getClass().getDeclaredField("mNoMedia");
        mNoMediaF.setAccessible(true);
        mNoMediaF.setBoolean(mClient, false);

        // This is only for HTC (tested only on HTC One M8)
        try {
            Field mFileCacheF = clazz.getDeclaredField("mFileCache");
            mFileCacheF.setAccessible(true);
            mFileCacheF.set(scanner, new HashMap<String, Object>());
        } catch (Throwable e) {
            // no an HTC, I need some time to refactor this hack
        }

        try {
            Field mFileCacheF = clazz.getDeclaredField("mNoMediaPaths");
            mFileCacheF.setAccessible(true);
            mFileCacheF.set(scanner, new HashMap<String, String>());
        } catch (Throwable e) {
            e.printStackTrace();
        }

        Method doScanFileM = mClient.getClass().getDeclaredMethod("doScanFile", String.class, String.class,
                long.class, long.class, boolean.class, boolean.class, boolean.class);
        Uri mediaUri = (Uri) doScanFileM.invoke(mClient, f.getAbsolutePath(), null, f.lastModified(),
                f.length(), false, true, false);

        Method releaseM = clazz.getDeclaredMethod("release");
        releaseM.invoke(scanner);

        return mediaUri;

    } catch (Throwable e) {
        e.printStackTrace();
        return null;
    }
}

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From source file:com.github.valdr.thirdparty.spring.AnnotationUtils.java

/**
 * Retrieve the <em>default value</em> of a named Annotation attribute, given the {@link Class annotation type}.
 * @param annotationType the <em>annotation type</em> for which the default value should be retrieved
 * @param attributeName the name of the attribute value to retrieve.
 * @return the default value of the named attribute, or {@code null} if not found
 * @see #getDefaultValue(java.lang.annotation.Annotation, String)
 *//*from ww  w  . j a v a 2 s. co  m*/
public static Object getDefaultValue(Class<? extends Annotation> annotationType, String attributeName) {
    try {
        Method method = annotationType.getDeclaredMethod(attributeName, new Class[0]);
        return method.getDefaultValue();
    } catch (Exception ex) {
        return null;
    }
}

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From source file:Main.java

private static Method getColumnSetMethod(Class<?> entityType, Field field, Class<?> typeClass, String suffix) {
    String fieldName = field.getName();
    Method setMethod = null;//from w  w w.j a v  a 2  s  . co  m
    if (field.getType() == boolean.class) {
        setMethod = getBooleanColumnSetMethod(entityType, field, typeClass, suffix);
    }
    if (setMethod == null) {
        String methodName = "set" + fieldName.substring(0, 1).toUpperCase(Locale.getDefault())
                + fieldName.substring(1) + suffix;
        try {
            setMethod = entityType.getDeclaredMethod(methodName, typeClass);
        } catch (NoSuchMethodException e) {
            Log.d("T", methodName + " not exist");
        }
    }
    return setMethod;
}

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From source file:Main.java

private static Method getBooleanColumnSetMethod(Class<?> entityType, Field field, Class<?> typeClass,
        String suffix) {/* w  w w . j  a  va  2  s  . c  o m*/
    String fieldName = field.getName();
    String methodName = null;
    if (isStartWithIs(field.getName())) {
        methodName = "set" + fieldName.substring(2, 3).toUpperCase(Locale.getDefault()) + fieldName.substring(3)
                + suffix;
    } else {
        methodName = "set" + fieldName.substring(0, 1).toUpperCase(Locale.getDefault()) + fieldName.substring(1)
                + suffix;
    }
    try {
        return entityType.getDeclaredMethod(methodName, typeClass);
    } catch (NoSuchMethodException e) {
        Log.d("L", methodName + " not exist");
    }
    return null;
}

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From source file:Main.java

static public Object invokeMethod(Object owner, String methodName, Object... args) throws Exception {
    Class<?> ownerClass = owner.getClass();
    Class<?>[] argsClass = null;

    if (args != null && args.length > 0) {
        argsClass = new Class<?>[args.length];

        for (int i = 0, j = args.length; i < j; i++) {
            argsClass[i] = args[i].getClass();
            if (argsClass[i] == Integer.class) {
                argsClass[i] = int.class;
            } else if (argsClass[i] == Boolean.class) {
                argsClass[i] = boolean.class;
            }//from   w  ww . j a  v a2 s .  co  m
        }
    }

    Method method = ownerClass.getDeclaredMethod(methodName, argsClass);
    method.setAccessible(true);
    return method.invoke(owner, args);
}

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From source file:org.apache.cassandra.db.marshal.TypeParser.java

private static AbstractType<?> getRawAbstractType(Class<? extends AbstractType<?>> typeClass, TypeParser parser)
        throws ConfigurationException {
    try {// w w  w.  j a va2s  .  c  o  m
        Method method = typeClass.getDeclaredMethod("getInstance", TypeParser.class);
        return (AbstractType<?>) method.invoke(null, parser);
    } catch (NoSuchMethodException e) {
        throw new ConfigurationException("Invalid comparator class " + typeClass.getName()
                + ": must define a public static instance field or a public static method getInstance(TypeParser).");
    } catch (IllegalAccessException e) {
        throw new ConfigurationException("Invalid comparator class " + typeClass.getName()
                + ": must define a public static instance field or a public static method getInstance(TypeParser).");
    } catch (InvocationTargetException e) {
        ConfigurationException ex = new ConfigurationException(
                "Invalid definition for comparator " + typeClass.getName() + ".");
        ex.initCause(e.getTargetException());
        throw ex;
    }
}

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From source file:apple.dts.samplecode.osxadapter.OSXAdapter.java

public static void setHandler(OSXAdapter adapter) {
    try {/* w w w.  j a v  a2 s  . c  om*/
        Class<?> applicationClass = Class.forName("com.apple.eawt.Application");
        if (macOSXApplication == null) {
            macOSXApplication = applicationClass.getConstructor((Class<?>[]) null).newInstance((Object[]) null);
        }
        Class<?> applicationListenerClass = Class.forName("com.apple.eawt.ApplicationListener");
        Method addListenerMethod = applicationClass.getDeclaredMethod("addApplicationListener",
                new Class<?>[] { applicationListenerClass });
        // Create a proxy object around this handler that can be reflectively added as an Apple ApplicationListener
        Object osxAdapterProxy = Proxy.newProxyInstance(OSXAdapter.class.getClassLoader(),
                new Class<?>[] { applicationListenerClass }, adapter);
        addListenerMethod.invoke(macOSXApplication, new Object[] { osxAdapterProxy });
    } catch (ClassNotFoundException cnfe) {
        System.err.println(
                "This version of Mac OS X does not support the Apple EAWT.  ApplicationEvent handling has been disabled ("
                        + cnfe + ")");
    } catch (Exception ex) { // Likely a NoSuchMethodException or an IllegalAccessException loading/invoking eawt.Application methods
        log.error("Mac OS X Adapter could not talk to EAWT:", ex);
    }
}

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