Nested and Inner Type Summary

Modifier and Type	Class and Description
private static class	SubscriberRegistry.MethodIdentifier

Field Summary

Modifier and Type	Field and Description
private final EventBus	bus The event bus this registry belongs to.
private static final LoadingCache<Class<?>, ImmutableSet<Class<?>>>	flattenHierarchyCache Global cache of classes to their flattened hierarchy of supertypes.
private static final LoadingCache<Class<?>, ImmutableList<Method>>	subscriberMethodsCache A thread-safe cache that contains the mapping from each class to all methods in that class and all super-classes, that are annotated with `@Subscribe`.
private final ConcurrentMap<Class<?>, CopyOnWriteArraySet<Subscriber>>	subscribers All registered subscribers, indexed by event type.

Access	Constructor and Description
pack-priv	SubscriberRegistry(EventBus bus)

Method Summary

Modifier and Type	Method and Description
private Multimap<Class<?>, Subscriber>	findAllSubscribers(Object listener) Returns all subscribers for the given listener grouped by the type of event they subscribe to.
pack-priv static ImmutableSet<Class<?>>	flattenHierarchy(Class<?> concreteClass) Flattens a class's type hierarchy into a set of `Class` objects including all superclasses (transitively) and all interfaces implemented by these superclasses.
private static ImmutableList<Method>	getAnnotatedMethods(Class<?> clazz)
private static ImmutableList<Method>	getAnnotatedMethodsNotCached(Class<?> clazz)
pack-priv Iterator<Subscriber>	getSubscribers(Object event) Gets an iterator representing an immutable snapshot of all subscribers to the given event at the time this method is called.
pack-priv Set<Subscriber>	getSubscribersForTesting(Class<?> eventType)
pack-priv void	register(Object listener) Registers all subscriber methods on the given listener object.
pack-priv void	unregister(Object listener) Unregisters all subscribers on the given listener object.

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

Field Detail

bus	back to summary
private final EventBus bus The event bus this registry belongs to. Annotations @Weak

flattenHierarchyCache	back to summary
private static final LoadingCache<Class<?>, ImmutableSet<Class<?>>> flattenHierarchyCache Global cache of classes to their flattened hierarchy of supertypes.

subscriberMethodsCache back to summary

subscriberMethodsCache	back to summary
private static final LoadingCache<Class<?>, ImmutableList<Method>> subscriberMethodsCache A thread-safe cache that contains the mapping from each class to all methods in that class and all super-classes, that are annotated with `@Subscribe`. The cache is shared across all instances of this class; this greatly improves performance if multiple EventBus instances are created and objects of the same class are registered on all of them.

private static final LoadingCache<Class<?>, ImmutableList<Method>> subscriberMethodsCache

A thread-safe cache that contains the mapping from each class to all methods in that class and all super-classes, that are annotated with @Subscribe. The cache is shared across all instances of this class; this greatly improves performance if multiple EventBus instances are created and objects of the same class are registered on all of them.

subscribers back to summary

subscribers	back to summary
private final ConcurrentMap<Class<?>, CopyOnWriteArraySet<Subscriber>> subscribers All registered subscribers, indexed by event type. The `CopyOnWriteArraySet` values make it easy and relatively lightweight to get an immutable snapshot of all current subscribers to an event without any locking.

private final ConcurrentMap<Class<?>, CopyOnWriteArraySet<Subscriber>> subscribers

All registered subscribers, indexed by event type.

The CopyOnWriteArraySet values make it easy and relatively lightweight to get an immutable snapshot of all current subscribers to an event without any locking.

SubscriberRegistry	back to summary
pack-priv SubscriberRegistry(EventBus bus)

Method Detail

findAllSubscribers	back to summary
private Multimap<Class<?>, Subscriber> findAllSubscribers(Object listener) Returns all subscribers for the given listener grouped by the type of event they subscribe to.

flattenHierarchy back to summary

flattenHierarchy	back to summary
pack-priv static ImmutableSet<Class<?>> flattenHierarchy(Class<?> concreteClass) Flattens a class's type hierarchy into a set of `Class` objects including all superclasses (transitively) and all interfaces implemented by these superclasses. Annotations @VisibleForTesting

pack-priv static ImmutableSet<Class<?>> flattenHierarchy(Class<?> concreteClass)

Flattens a class's type hierarchy into a set of Class objects including all superclasses (transitively) and all interfaces implemented by these superclasses.

Annotations

@VisibleForTesting

getAnnotatedMethods	back to summary
private static ImmutableList<Method> getAnnotatedMethods(Class<?> clazz)

getAnnotatedMethodsNotCached	back to summary
private static ImmutableList<Method> getAnnotatedMethodsNotCached(Class<?> clazz)

getSubscribers	back to summary
pack-priv Iterator<Subscriber> getSubscribers(Object event) Gets an iterator representing an immutable snapshot of all subscribers to the given event at the time this method is called.

getSubscribersForTesting	back to summary
pack-priv Set<Subscriber> getSubscribersForTesting(Class<?> eventType) Annotations @VisibleForTesting

register	back to summary
pack-priv void register(Object listener) Registers all subscriber methods on the given listener object.

unregister	back to summary
pack-priv void unregister(Object listener) Unregisters all subscribers on the given listener object.

com.google.common.eventbus back to summary

private final Class SubscriberRegistry.MethodIdentifier

Class Inheritance

extends Object

java.lang.Object
com.google.common.eventbus.SubscriberRegistry.MethodIdentifier

Field Summary

Modifier and Type	Field and Description
private final String	name
private final List<Class<?>>	parameterTypes

Constructor Summary

Access	Constructor and Description
pack-priv	MethodIdentifier(Method method)

Method Summary

Modifier and Type	Method and Description
public boolean	equals(Object the reference object with which to compare. o) Overrides java.lang.Object.equals. Indicates whether some other object is "equal to" this one.
public int	hashCode() Overrides java.lang.Object.hashCode. Returns a hash code value for the object.

Inherited from java.lang.Object:: clone finalize getClass notify notifyAll toString wait wait wait

Field Detail

name	back to summary
private final String name

parameterTypes	back to summary
private final List<Class<?>> parameterTypes

Constructor Detail

MethodIdentifier	back to summary
pack-priv MethodIdentifier(Method method)

Method Detail

equals back to summary

equals	back to summary
public boolean equals(Object o) Overrides java.lang.Object.equals. Doc from java.lang.Object.equals. Indicates whether some other object is "equal to" this one. The `equals` method implements an equivalence relation on non-null object references: It is reflexive: for any non-null reference value `x`, `x.equals(x)` should return `true`. It is symmetric: for any non-null reference values `x` and `y`, `x.equals(y)` should return `true` if and only if `y.equals(x)` returns `true`. It is transitive: for any non-null reference values `x`, `y`, and `z`, if `x.equals(y)` returns `true` and `y.equals(z)` returns `true`, then `x.equals(z)` should return `true`. It is consistent: for any non-null reference values `x` and `y`, multiple invocations of `x.equals(y)` consistently return `true` or consistently return `false`, provided no information used in `equals` comparisons on the objects is modified. For any non-null reference value `x`, `x.equals(null)` should return `false`. An equivalence relation partitions the elements it operates on into equivalence classes; all the members of an equivalence class are equal to each other. Members of an equivalence class are substitutable for each other, at least for some purposes. Parameters o:Object the reference object with which to compare. Returns:boolean `true` if this object is the same as the obj argument; `false` otherwise. Annotations @Override

public boolean equals(Object o)

Overrides java.lang.Object.equals.

Doc from java.lang.Object.equals.

Indicates whether some other object is "equal to" this one.

The equals method implements an equivalence relation on non-null object references:

It is reflexive: for any non-null reference value x, x.equals(x) should return true.
It is symmetric: for any non-null reference values x and y, x.equals(y) should return true if and only if y.equals(x) returns true.
It is transitive: for any non-null reference values x, y, and z, if x.equals(y) returns true and y.equals(z) returns true, then x.equals(z) should return true.
It is consistent: for any non-null reference values x and y, multiple invocations of x.equals(y) consistently return true or consistently return false, provided no information used in equals comparisons on the objects is modified.
For any non-null reference value x, x.equals(null) should return false.

An equivalence relation partitions the elements it operates on into equivalence classes; all the members of an equivalence class are equal to each other. Members of an equivalence class are substitutable for each other, at least for some purposes.

Parameters

o:Object: the reference object with which to compare.

Returns:boolean

true if this object is the same as the obj argument; false otherwise.

Annotations

@Override

hashCode back to summary

hashCode	back to summary
public int hashCode() Overrides java.lang.Object.hashCode. Doc from java.lang.Object.hashCode. Returns a hash code value for the object. This method is supported for the benefit of hash tables such as those provided by `java.util.HashMap`. The general contract of `hashCode` is: Whenever it is invoked on the same object more than once during an execution of a Java application, the `hashCode` method must consistently return the same integer, provided no information used in `equals` comparisons on the object is modified. This integer need not remain consistent from one execution of an application to another execution of the same application. If two objects are equal according to the `equals` method, then calling the `hashCode` method on each of the two objects must produce the same integer result. It is not required that if two objects are unequal according to the `equals` method, then calling the `hashCode` method on each of the two objects must produce distinct integer results. However, the programmer should be aware that producing distinct integer results for unequal objects may improve the performance of hash tables. Returns:int a hash code value for this object. Annotations @Override

public int hashCode()

Overrides java.lang.Object.hashCode.

Doc from java.lang.Object.hashCode.

Returns a hash code value for the object. This method is supported for the benefit of hash tables such as those provided by java.util.HashMap.

The general contract of hashCode is:

Whenever it is invoked on the same object more than once during an execution of a Java application, the hashCode method must consistently return the same integer, provided no information used in equals comparisons on the object is modified. This integer need not remain consistent from one execution of an application to another execution of the same application.
If two objects are equal according to the equals method, then calling the hashCode method on each of the two objects must produce the same integer result.
It is not required that if two objects are unequal according to the equals method, then calling the hashCode method on each of the two objects must produce distinct integer results. However, the programmer should be aware that producing distinct integer results for unequal objects may improve the performance of hash tables.

Returns:int

a hash code value for this object.

Annotations

@Override

pack-priv final Class SubscriberRegistry

Nested and Inner Type Summary

Field Summary

Constructor Summary

Method Summary

Field Detail

Constructor Detail

Method Detail

private final Class SubscriberRegistry.MethodIdentifier

Field Summary

Constructor Summary

Method Summary

Field Detail

Constructor Detail

Method Detail