Package com.github.mjeanroy.springmvc.view.mustache.commons.reflection

Class Classes

java.lang.Object

com.github.mjeanroy.springmvc.view.mustache.commons.reflection.Classes

public final class Classes
extends Object

Commons static class utilities.

Method Summary

Modifier and Type	Method	Description
static <T> T	getAnnotationValue(org.springframework.core.type.AnnotationMetadata importingClassMetadata, Class annotationClass, String name, T defaultValue)	Get annotation method value.
static Class<?>	getClassOf(String klass)	Get class object related to given class name.
static <T> Object	invoke(T instance, String methodName, Class<?>[] parameterTypes, Object[] args)	Invoke given method on given instance with given arguments.
static boolean	isPresent(String klass)	Check that a given class is available on classpath.
static Object	newInstance(String klassName, Class<?>[] argTypes, Object[] args)	Create new class instance.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

isPresent

public static boolean isPresent(String klass)

Check that a given class is available on classpath.

Parameters:

klass - Class name.

Returns:

True if class is available, false otherwise.

getClassOf

public static Class<?> getClassOf(String klass)

Get class object related to given class name.

Parameters:

klass - Class name.

Returns:

The class object.

newInstance

public static Object newInstance(String klassName,
                                 Class<?>[] argTypes,
                                 Object[] args)

Create new class instance.

Parameters:

klassName - The class name.

argTypes - Argument types, used to retrieve appropriate constructor.

args - Arguments.

Returns:

The new instance.

Throws:

ReflectionException - If an error occurred during class instantiation.

invoke

public static <T> Object invoke(T instance,
                                String methodName,
                                Class<?>[] parameterTypes,
                                Object[] args)

Invoke given method on given instance with given arguments.

Type Parameters:

T - Type of given instance.

Parameters:

instance - Object instance.

methodName - Method to invoke.

parameterTypes - Type of parameters.

args - Method arguments.

Returns:

Method invocation result.

getAnnotationValue

public static <T> T getAnnotationValue(org.springframework.core.type.AnnotationMetadata importingClassMetadata,
                                       Class annotationClass,
                                       String name,
                                       T defaultValue)

Get annotation method value.

Type Parameters:

T - Type of returned value.

Parameters:

importingClassMetadata - Metadata.

annotationClass - Annotation class to look for.

name - Name of method.

defaultValue - Default value if original value is null.

Returns:

Annotation value, or default value if original value is null.