org.springframework.data.relational.core.conversion.DeleteAggregateChange Maven / Gradle / Ivy
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Spring Data Relational support
/*
* Copyright 2017-2023 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.relational.core.conversion;
import java.util.ArrayList;
import java.util.List;
import java.util.function.Consumer;
import org.springframework.lang.Nullable;
import org.springframework.util.Assert;
/**
* Represents the change happening to the aggregate (as used in the context of Domain Driven Design) as a whole.
*
* @author Jens Schauder
* @author Mark Paluch
* @author Chirag Tailor
* @since 2.0
*/
public class DeleteAggregateChange implements MutableAggregateChange {
/** Type of the aggregate root to be changed */
private final Class entityType;
private final List> actions = new ArrayList<>();
/** The previous version assigned to the instance being changed, if available */
@Nullable private final Number previousVersion;
DeleteAggregateChange(Class entityType, @Nullable Number previousVersion) {
this.entityType = entityType;
this.previousVersion = previousVersion;
}
/**
* Adds an action to this {@code AggregateChange}.
*
* @param action must not be {@literal null}.
*/
@Override
public void addAction(DbAction action) {
Assert.notNull(action, "Action must not be null");
actions.add(action);
}
@Override
public Kind getKind() {
return Kind.DELETE;
}
@Override
public Class getEntityType() {
return this.entityType;
}
@Nullable
@Override
public Number getPreviousVersion() {
return previousVersion;
}
@Override
public void forEachAction(Consumer> consumer) {
Assert.notNull(consumer, "Consumer must not be null");
actions.forEach(consumer);
}
}