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Cassandra support for Spring Data
/*
* Copyright 2022-2023 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.data.cassandra.core;
import java.util.function.Supplier;
import org.springframework.context.ApplicationEventPublisher;
import org.springframework.lang.Nullable;
/**
* Delegate class to encapsulate lifecycle event configuration and publishing. Event creation is deferred within an
* event {@link Supplier} to delay the actual event object creation.
*
* @author Mark Paluch
* @since 4.0
* @see ApplicationEventPublisher
*/
class EntityLifecycleEventDelegate {
private @Nullable ApplicationEventPublisher publisher;
private boolean eventsEnabled = true;
public void setPublisher(@Nullable ApplicationEventPublisher publisher) {
this.publisher = publisher;
}
public boolean isEventsEnabled() {
return eventsEnabled;
}
public void setEventsEnabled(boolean eventsEnabled) {
this.eventsEnabled = eventsEnabled;
}
/**
* Publish an application event if event publishing is enabled.
*
* @param eventSupplier the supplier for application events.
*/
public void publishEvent(Supplier eventSupplier) {
if (canPublishEvent()) {
publisher.publishEvent(eventSupplier.get());
}
}
private boolean canPublishEvent() {
return publisher != null && eventsEnabled;
}
}