org.springframework.batch.core.StepExecutionListener.java Source code

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Here is the source code for org.springframework.batch.core.StepExecutionListener.java

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/*
 * Copyright 2006-2018 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.core;

import org.springframework.lang.Nullable;

/**
 * Listener interface for the lifecycle of a {@link Step}.
 *
 * @author Lucas Ward
 * @author Dave Syer
 * @author Mahmoud Ben Hassine
 *
 */
public interface StepExecutionListener extends StepListener {

    /**
     * Initialize the state of the listener with the {@link StepExecution} from
     * the current scope.
     *
     * @param stepExecution instance of {@link StepExecution}.
     */
    void beforeStep(StepExecution stepExecution);

    /**
     * Give a listener a chance to modify the exit status from a step. The value
     * returned will be combined with the normal exit status using
     * {@link ExitStatus#and(ExitStatus)}.
     *
     * Called after execution of step's processing logic (both successful or
     * failed). Throwing exception in this method has no effect, it will only be
     * logged.
     *
     * @param stepExecution {@link StepExecution} instance.
     * @return an {@link ExitStatus} to combine with the normal value. Return
     * {@code null} to leave the old value unchanged.
     */
    @Nullable
    ExitStatus afterStep(StepExecution stepExecution);
}