org.springframework.batch.core.SkipListener Maven / Gradle / Ivy
/*
* 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.core;
/**
* Interface for listener to skipped items. Callbacks will be called by
* {@link Step} implementations at the appropriate time in the step lifecycle.
* Implementers of this interface should not assume that any method will be
* called immediately after an error has been encountered. Because there
* may be errors later on in processing the chunk, this listener will not be
* called until just before committing.
*
* @author Dave Syer
* @author Robert Kasanicky
*
*/
public interface SkipListener extends StepListener {
/**
* Callback for a failure on read that is legal, so is not going to be
* re-thrown. In case transaction is rolled back and items are re-read, this
* callback will occur repeatedly for the same cause. This will only happen
* if read items are not buffered.
*
* @param t cause of the failure
*/
void onSkipInRead(Throwable t);
/**
* This item failed on write with the given exception, and a skip was called
* for.
*
* @param item the failed item
* @param t the cause of the failure
*/
void onSkipInWrite(S item, Throwable t);
/**
* This item failed on processing with the given exception, and a skip was called
* for.
*
* @param item the failed item
* @param t the cause of the failure
*/
void onSkipInProcess(T item, Throwable t);
}