Java Utililty Methods Reflection Method Invoke

List of utility methods to do Reflection Method Invoke

  1. HOME
  2. Java
  3. R
  4. Reflection Method Invoke

Description

The list of methods to do Reflection Method Invoke are organized into topic(s).

Method

Objectinvoke(Method m, Object o, Object[] args)
Reflection helper methods. 
try {
    return m.invoke(o, args);
} catch (IllegalAccessException iae) {
    throw new RuntimeException(iae);
} catch (IllegalArgumentException iae) {
    throw new RuntimeException(iae);
Objectinvoke(Method m, Object o, String msg, Object... parameters)
invoke 
try {
    return m.invoke(o, parameters);
} catch (InvocationTargetException e) {
    Throwable t = e.getTargetException();
    if (t instanceof Error) {
        throw (Error) t;
    throw new ReflectionException((Exception) t, "Exception thrown while invoking  " + msg);
...
Objectinvoke(Method m, Object target, Object... params)
invoke 
try {
    m.setAccessible(true);
    return m.invoke(target, params);
} catch (Exception e) {
    throw new RuntimeException(e);
longinvoke(Method method)
invoke 
try {
    Object value = (method == null) ? null : method.invoke(osBean);
    return (value == null) ? VALUE_UNAVAILABLE : ((Number) value).longValue();
} catch (Throwable t) {
    return VALUE_UNAVAILABLE;
voidinvoke(Method method)
invoke 
method.getModifiers();
Objectinvoke(Method method, Object data, Object... arguments)
Common method to invoke Method with reflection 
Object value;
try {
    value = method.invoke(data, arguments);
} catch (IllegalAccessException ex) {
    throw new IOException(ex);
} catch (IllegalArgumentException ex) {
    throw new IOException(ex);
} catch (InvocationTargetException ex) {
...
Tinvoke(Method method, Object instance, Object... parameters)
Invoke the method. 
if (!method.isAccessible())
    method.setAccessible(true);
if (Modifier.isStatic(method.getModifiers()) && instance != null)
    instance = null;
try {
    return (T) method.invoke(instance, parameters);
} catch (IllegalAccessException e) {
    throw new RuntimeException("Failed to invoke method", e);
...
Objectinvoke(Method method, Object it, Object... args)
Invokes the specified method on the given it Object with the given arguments. 
try {
    method.setAccessible(true);
    return method.invoke(it, args);
} catch (IllegalArgumentException e) {
    throw new Error(
            String.format("Method '%s' rejected arguments(%s)", method.getName(), argumentList(args)), e);
} catch (IllegalAccessException e) {
    throw new Error("Method became inaccessible.", e);
...
Objectinvoke(Method method, Object javaBean, Object value)
invoke 
Object[] paramValue = null;
if (value == paramValue) {
    paramValue = new Object[0];
} else {
    paramValue = new Object[] { value };
try {
    return method.invoke(javaBean, paramValue);
...
Objectinvoke(Method method, Object obj, Object... args)
invoke 
try {
    return method.invoke(obj, args);
} catch (IllegalAccessException e) {
    throw new IllegalArgumentException("Can't invoke method " + method.getName(), e);
} catch (InvocationTargetException e) {
    throw new IllegalArgumentException("Can't invoke method " + method.getName(), e);