net.lenni0451.lambdaevents.utils

Class EventUtils

java.lang.Object

net.lenni0451.lambdaevents.utils.EventUtils

public class EventUtils
extends java.lang.Object

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	EventUtils.FieldHandler A wrapper class for an event handler field with it's EventHandler annotation.
static class	EventUtils.MethodHandler A wrapper class for an event handler method with it's EventHandler annotation.

Constructor Summary

Constructors

Constructor and Description
EventUtils()

Method Summary

Modifier and Type	Method and Description
static java.lang.Class<?>[]	getEvents(EventHandler annotation, java.lang.reflect.Field field, java.util.function.Predicate<java.lang.Class<?>> accept) Get all events handled by the given field.
static java.lang.Class<?>[]	getEvents(EventHandler annotation, java.lang.reflect.Method method, java.util.function.Predicate<java.lang.Class<?>> accept) Get all events handled by the given method.
static java.util.List<EventUtils.FieldHandler>	getFields(java.lang.Class<?> owner, java.util.function.Predicate<java.lang.reflect.Field> accept, boolean registerSuperHandler) Get all fields of the given class which are annotated with EventHandler.
static java.util.List<EventUtils.MethodHandler>	getMethods(java.lang.Class<?> owner, java.util.function.Predicate<java.lang.reflect.Method> accept, boolean registerSuperHandler) Get all methods of the given class which are annotated with EventHandler.
static void	getSuperClasses(java.util.Set<java.lang.Class<?>> classes, java.lang.Class<?> clazz) Get all super classes and interfaces of the given class.
static EventHandler	newEventHandler(int priority) Create a new EventHandler instance with the given priority.
static java.lang.String	toString(java.lang.reflect.Method method) Convert a method to a string.
static java.lang.String	toString(java.lang.invoke.MethodHandle methodHandle) Convert a method handle to a string.
static void	verify(java.lang.Class<?> owner, EventHandler annotation, java.lang.reflect.Field field) Check if the given field is a valid event handler field.
static void	verify(java.lang.Class<?> owner, EventHandler annotation, java.lang.reflect.Method method) Check if the given method is a valid event handler method.

Methods inherited from class java.lang.Object

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

Constructor Detail

EventUtils

public EventUtils()

Method Detail

getMethods

@Nonnull
public static java.util.List<EventUtils.MethodHandler> getMethods(java.lang.Class<?> owner,
                                                                            java.util.function.Predicate<java.lang.reflect.Method> accept,
                                                                            boolean registerSuperHandler)

Get all methods of the given class which are annotated with EventHandler.
This method does not verify if the methods are valid.

Parameters:

owner - The class to get the methods from

accept - If the method should be accepted

registerSuperHandler - If the super methods should be registered

Returns:

The list of all found methods

getFields

@Nonnull
public static java.util.List<EventUtils.FieldHandler> getFields(java.lang.Class<?> owner,
                                                                          java.util.function.Predicate<java.lang.reflect.Field> accept,
                                                                          boolean registerSuperHandler)

Get all fields of the given class which are annotated with EventHandler.
This method does not verify if the fields are valid.

Parameters:

owner - The class to get the fields from

accept - If the field should be accepted

registerSuperHandler - If the super fields should be registered

Returns:

The list of all found fields

verify

public static void verify(java.lang.Class<?> owner,
                          EventHandler annotation,
                          java.lang.reflect.Method method)

Check if the given method is a valid event handler method.

Parameters:

owner - The owner of the method

annotation - The EventHandler annotation of the method

method - The method to check

Throws:

java.lang.IllegalStateException - If the method is not valid

verify

public static void verify(java.lang.Class<?> owner,
                          EventHandler annotation,
                          java.lang.reflect.Field field)

Check if the given field is a valid event handler field.

Parameters:

owner - The owner of the field

annotation - The EventHandler annotation of the field

field - The field to check

getEvents

@Nonnull
public static java.lang.Class<?>[] getEvents(EventHandler annotation,
                                                       java.lang.reflect.Method method,
                                                       java.util.function.Predicate<java.lang.Class<?>> accept)

Get all events handled by the given method.

Parameters:

annotation - The EventHandler annotation of the method

method - The method to get the events from

accept - If the event should be accepted

Returns:

The list of all found events

getEvents

@Nonnull
public static java.lang.Class<?>[] getEvents(EventHandler annotation,
                                                       java.lang.reflect.Field field,
                                                       java.util.function.Predicate<java.lang.Class<?>> accept)

Get all events handled by the given field.

Parameters:

annotation - The EventHandler annotation of the field

field - The field to get the events from

accept - If the event should be accepted

Returns:

The list of all found events

newEventHandler

@Nonnull
public static EventHandler newEventHandler(int priority)

Create a new EventHandler instance with the given priority.

Parameters:

priority - The priority of the handler

Returns:

The new EventHandler instance

toString

public static java.lang.String toString(java.lang.reflect.Method method)

Convert a method to a string.

Parameters:

method - The method to convert

Returns:

The string representation of the method

toString

public static java.lang.String toString(java.lang.invoke.MethodHandle methodHandle)

Convert a method handle to a string.

Parameters:

methodHandle - The method to convert

Returns:

The string representation of the method

getSuperClasses

public static void getSuperClasses(java.util.Set<java.lang.Class<?>> classes,
                                   java.lang.Class<?> clazz)

Get all super classes and interfaces of the given class.
This uses recursion to simplify the code.

Parameters:

classes - The set to add the classes to

clazz - The class to get the super classes from