spring-batch ChunkRequest 源码
spring-batch ChunkRequest 代码
文件路径：/spring-batch-integration/src/main/java/org/springframework/batch/integration/chunk/ChunkRequest.java
/*
* Copyright 2006-2007 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.batch.integration.chunk;
import java.io.Serializable;
import java.util.Collection;
import org.springframework.batch.core.StepContribution;
/**
* Encapsulation of a chunk of items to be processed remotely as part of a step execution.
*
* @author Dave Syer
* @param <T> the type of the items to process
*/
public class ChunkRequest<T> implements Serializable {
private static final long serialVersionUID = 1L;
private final long jobId;
private final Collection<? extends T> items;
private final StepContribution stepContribution;
private final int sequence;
public ChunkRequest(int sequence, Collection<? extends T> items, long jobId, StepContribution stepContribution) {
this.sequence = sequence;
this.items = items;
this.jobId = jobId;
this.stepContribution = stepContribution;
}
public long getJobId() {
return jobId;
}
public Collection<? extends T> getItems() {
return items;
}
public int getSequence() {
return sequence;
}
/**
* @return the {@link StepContribution} for this chunk
*/
public StepContribution getStepContribution() {
return stepContribution;
}
/**
* @see java.lang.Object#toString()
*/
@Override
public String toString() {
return getClass().getSimpleName() + ": jobId=" + jobId + ", sequence=" + sequence + ", contribution="
+ stepContribution + ", item count=" + items.size();
}
}
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