de.langmi.spring.batch.examples.basics.tasklet.SimpleTasklet.java Source code

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/* 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
 *
 *      http://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 de.langmi.spring.batch.examples.basics.tasklet;

import org.springframework.batch.core.StepContribution;
import org.springframework.batch.core.scope.context.ChunkContext;
import org.springframework.batch.core.step.tasklet.Tasklet;
import org.springframework.batch.repeat.RepeatStatus;

/**
 * A real simple TaskletStep implementation.
 * 
 * @author Michael R. Pralow <me@michael-pralow.de>
 */
public class SimpleTasklet implements Tasklet {

    /** {@inheritDoc} */
    @Override
    public RepeatStatus execute(StepContribution contribution, ChunkContext chunkContext) throws Exception {
        // why not using println? because it makes testing harder, *nix and
        // windows think different about new line as in \n vs \r\n
        System.out.print("Hello World!");

        // we want the step to stop here, the other status 
        // RepeatStatus.CONTINUABLE would start an endless loop here
        return RepeatStatus.FINISHED;
    }

}