Package dev.getelements.elements.rt

Class Reflection

java.lang.Object

dev.getelements.elements.rt.Reflection

public class Reflection
extends Object

Houses some utility logic for interacting with the Reflection API.

Method Summary

Modifier and Type	Method	Description
static int	count(Method method, Class<? extends Annotation> annotationClass)
static int	errorHandlerIndex(Method method)	Finds the Parameter index annoated with ErrorHandler in the Method
static String	format(Method method)	Formats a Method for use in logging.
static Object	getBoxedPrimitive(Class<?> type, Object boxedPrimitive)	Gets the default value for the supplied type.
static Object	getDefaultValue(Class<?> type)	Gets the default value for the supplied type.
static Object	getDefaultValue(Parameter parameter)	Gets the default value for the supplied type.
static Method	getHandlerMethod(Parameter parameter)	Searches Method's parameters for a handler type.
static int[]	indices(Method method, Class<? extends Annotation> aClass)	Returns the parameter indices of the Method which are anootated with the supplied annotation class.
static boolean	isObjectFloat(Class<?> cls)	Checks if the supplied Class<?> is a primitive number.
static boolean	isObjectInteger(Class<?> cls)	Checks if the supplied Class<?> is a primitive number.
static boolean	isPrimitiveFloat(Class<?> cls)	Checks if the supplied Class<?> is a primitive float.
static boolean	isPrimitiveInteger(Class<?> cls)	Checks if the supplied Class<?> is a primitive number.
static Stream<Method>	methods(Class<?> aClass)	Streams a Methods in a Class.
static IllegalArgumentException	noSuchMethod(Class<?> cls, String name)	Returns an IllegalArgumentException with a descriptive name for the method and paramters.
static IllegalArgumentException	noSuchMethod(Class<?> cls, String name, Class<?>[] args)	Returns an IllegalArgumentException with a descriptive name for the method and paramters.
static IllegalArgumentException	noSuchMethod(Class<?> cls, String name, Collection<Class<?>> args)	Returns an IllegalArgumentException with a descriptive name for the method and paramters.

Methods inherited from class java.lang.Object

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

Method Details

isObjectInteger

public static boolean isObjectInteger(Class<?> cls)

Checks if the supplied Class<?> is a primitive number.

Parameters:

cls - the class

Returns:

true if the number is a primitive number

isPrimitiveInteger

public static boolean isPrimitiveInteger(Class<?> cls)

Checks if the supplied Class<?> is a primitive number.

Parameters:

cls - the class

Returns:

true if the number is a primitive number

isObjectFloat

public static boolean isObjectFloat(Class<?> cls)

Checks if the supplied Class<?> is a primitive number.

Parameters:

cls - the class

Returns:

true if the number is a primitive number

isPrimitiveFloat

public static boolean isPrimitiveFloat(Class<?> cls)

Checks if the supplied Class<?> is a primitive float.

Parameters:

cls - the class

Returns:

true if the number is a primitive number

format

public static String format(Method method)

Formats a Method for use in logging.

Parameters:

method - the Method

Returns:

the String representing the method

methods

public static Stream<Method> methods(Class<?> aClass)

Streams a Methods in a Class.

Parameters:

aClass - a class

Returns:

a Stream<Method>

noSuchMethod

public static IllegalArgumentException noSuchMethod(Class<?> cls,
 String name)

Returns an IllegalArgumentException with a descriptive name for the method and paramters.

Parameters:

cls - the type

name - the name of the method

Returns:

the IllegalArgumentException

noSuchMethod

public static IllegalArgumentException noSuchMethod(Class<?> cls,
 String name,
 Collection<Class<?>> args)

Returns an IllegalArgumentException with a descriptive name for the method and paramters.

Parameters:

cls - the type

name - the name of the method

args - the argument types

Returns:

the IllegalArgumentException

noSuchMethod

public static IllegalArgumentException noSuchMethod(Class<?> cls,
 String name,
 Class<?>[] args)

Returns an IllegalArgumentException with a descriptive name for the method and paramters.

Parameters:

cls - the type

name - the name of the method

args - the argument types

Returns:

the IllegalArgumentException

errorHandlerIndex

public static int errorHandlerIndex(Method method)

Finds the Parameter index annoated with ErrorHandler in the Method

Parameters:

method - the Method

Returns:

the integer

indices

public static int[] indices(Method method,
 Class<? extends Annotation> aClass)

Returns the parameter indices of the Method which are anootated with the supplied annotation class.

Parameters:

method - the method

aClass - the Annotation type

Returns:

an integer array of all indices

getHandlerMethod

public static Method getHandlerMethod(Parameter parameter)

Searches Method's parameters for a handler type.

Parameters:

parameter - parameter

Returns:

getDefaultValue

public static Object getDefaultValue(Parameter parameter)

Gets the default value for the supplied type. For primitive types, this is always "0" and for non-primitive types, this is null.

Parameters:

parameter - the Parameter

Returns:

the default value

getDefaultValue

public static Object getDefaultValue(Class<?> type)

Gets the default value for the supplied type. For primitive types, this is always "0" and for non-primitive types, this is null.

Parameters:

type - the type

Returns:

the default value

getBoxedPrimitive

public static Object getBoxedPrimitive(Class<?> type,
 Object boxedPrimitive)

Gets the default value for the supplied type. For primitive types, this is always "0" and for non-primitive types, this is null.

Parameters:

type - the type

Returns:

the default value

count

public static int count(Method method,
 Class<? extends Annotation> annotationClass)