- Add additional listerner method that takes no arguments.

fabric-components-api-v1/src/main/java/net/fabricmc/fabric/api/components/v1/api/Component.java

@@ -22,8 +22,4 @@ public interface Component<A extends AttachmentTarget> {
 	interface EventHandler<C extends Component<? extends A>, A extends AttachmentTarget, E> {
 		void handle(C component, A target, E eventPayload);
 	}
-
-	interface EventListener<C extends Component<? extends A>, A extends AttachmentTarget> {
-		void handle(C component, A target);
-	}
 }

fabric-components-api-v1/src/main/java/net/fabricmc/fabric/api/components/v1/api/ComponentType.java

@@ -17,6 +17,7 @@
 package net.fabricmc.fabric.api.components.v1.api;
 
 import java.util.List;
+import java.util.function.BiConsumer;
 import java.util.function.Consumer;
 
 import net.minecraft.util.Identifier;
@@ -42,9 +43,13 @@ static <A extends AttachmentTarget, C extends Component<A>> ComponentType<A, C>
 	<EA extends AttachmentTarget, E> List<Component.EventHandler<?, EA, E>> getEventHandlers(TargetedEvent<EA, E> event);
 
 	interface Builder<A extends AttachmentTarget, C extends Component<A>> extends AttachmentRegistry.Builder<C> {
+		// We probably don't absolutely need all three of
 		<E> Builder<A, C> listen(TargetedEvent<? super A, E> event, Class<A> targetClass, Component.EventHandler<C, A, E> handler);
-		<E> Builder<A, C> listen(TargetedEvent<? super A, E> event, Class<A> targetClass, Component.EventListener<C, A> handler);
+		<E> Builder<A, C> listen(TargetedEvent<? super A, E> event, Class<A> targetClass, BiConsumer<C, A> handler);
+		<E> Builder<A, C> listen(TargetedEvent<? super A, E> event, Class<A> targetClass, Consumer<C> handler);
+
 		<E> Builder<A, C> listen(TargetedEvent<A, E> event, Component.EventHandler<C, A, E> handler);
-		<E> Builder<A, C> listen(TargetedEvent<A, E> event, Component.EventListener<C, A> handler);
+		<E> Builder<A, C> listen(TargetedEvent<A, E> event, BiConsumer<C, A> handler);
+		<E> Builder<A, C> listen(TargetedEvent<A, E> event, Consumer<C> handler);
 	}
 }

fabric-components-api-v1/src/main/java/net/fabricmc/fabric/api/components/v1/impl/ComponentTypeImpl.java

@@ -21,6 +21,8 @@
 import java.util.IdentityHashMap;
 import java.util.List;
 import java.util.Map;
+import java.util.function.BiConsumer;
+import java.util.function.Consumer;
 import java.util.function.Supplier;
 
 import com.mojang.serialization.Codec;
@@ -96,9 +98,16 @@ public void handle(C component, AttachmentTarget target, E eventPayload) {
 		}
 
 		@Override
-		public <E> Builder<A, C> listen(TargetedEvent<? super A, E> event, Class<A> targetClass, Component.EventListener<C, A> handler) {
+		public <E> Builder<A, C> listen(TargetedEvent<? super A, E> event, Class<A> targetClass, BiConsumer<C, A> handler) {
 			return this.listen(event, targetClass, (component, attachmentTarget, eventPayload) ->
-					handler.handle(component, attachmentTarget)
+					handler.accept(component, attachmentTarget)
+			);
+		}
+
+		@Override
+		public <E> Builder<A, C> listen(TargetedEvent<? super A, E> event, Class<A> targetClass, Consumer<C> handler) {
+			return this.listen(event, targetClass, (component, attachmentTarget, eventPayload) ->
+					handler.accept(component)
 			);
 		}
 
@@ -110,9 +119,16 @@ public <E> Builder<A, C> listen(TargetedEvent<A, E> event, Component.EventHandle
 		}
 
 		@Override
-		public <E> Builder<A, C> listen(TargetedEvent<A, E> event, Component.EventListener<C, A> handler) {
+		public <E> Builder<A, C> listen(TargetedEvent<A, E> event, BiConsumer<C, A> handler) {
+			return this.listen(event, (component, attachmentTarget, eventPayload) ->
+					handler.accept(component, attachmentTarget)
+			);
+		}
+
+		@Override
+		public <E> Builder<A, C> listen(TargetedEvent<A, E> event, Consumer<C> handler) {
 			return this.listen(event, (component, attachmentTarget, eventPayload) ->
-					handler.handle(component, attachmentTarget)
+					handler.accept(component)
 			);
 		}
 

fabric-components-api-v1/src/testmod/java/net/fabricmc/fabric/test/components/ComponentTestMod.java

@@ -35,6 +35,8 @@ public class ComponentTestMod implements ModInitializer {
 		builder.listen(ComponentEvents.ENTITY_LOAD, CreeperEntity.class, CreeperColor::onLoad);
 		// Not using the context object
 		builder.listen(ComponentEvents.ENTITY_UNLOAD, CreeperEntity.class, CreeperColor::onUnload);
+		// Not using the context object or the attachment target
+		builder.listen(ComponentEvents.ENTITY_UNLOAD, CreeperEntity.class, CreeperColor::onLoad2);
 		builder.initializer(CreeperColor::new);
 	});
 

fabric-components-api-v1/src/testmod/java/net/fabricmc/fabric/test/components/CreeperColor.java

@@ -30,7 +30,12 @@ void onLoad(CreeperEntity creeper, ServerWorld world) {
 		ComponentTestMod.LOGGER.info("Creeper with color {} loaded at {}", this, creeper.getBlockPos());
 	}
 
+
 	void onUnload(CreeperEntity creeper) {
 		ComponentTestMod.LOGGER.info("Creeper with color {} unloaded at {}", this, creeper.getBlockPos());
 	}
+
+	void onLoad2() {
+		ComponentTestMod.LOGGER.info("Creeper with color {} loaded", this);
+	}
 }