org.springframework.batch.integration.chunk.ChunkRequest.java Source code

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Here is the source code for org.springframework.batch.integration.chunk.ChunkRequest.java

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/*
 * 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();
    }

}