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Event interface definitions AWS services supported by AWS Lambda.
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package io.aws.lambda.events;
import io.aws.lambda.events.dynamodb.DynamodbTimeWindowEvent;
import io.aws.lambda.events.kinesis.KinesisTimeWindowEvent;
import lombok.Data;
import lombok.experimental.Accessors;
import org.jetbrains.annotations.NotNull;
import java.io.Serializable;
import java.util.Collections;
import java.util.List;
import java.util.Map;
/**
* Response type to return a new state for the time window and to report batch
* item failures. This should be used along with {@link KinesisTimeWindowEvent}
* or {@link DynamodbTimeWindowEvent}.
* https://docs.aws.amazon.com/lambda/latest/dg/with-kinesis.html#services-kinesis-windows
*/
@Data
@Accessors(chain = true)
public class TimeWindowEventResponse implements Serializable {
/**
* New state after processing a batch of records.
*/
private Map state;
/**
* A list of records which failed processing. Returning the first record which
* failed would retry all remaining records from the batch.
*/
private List batchItemFailures;
public @NotNull Map getState() {
return state == null ? Collections.emptyMap() : state;
}
public @NotNull List getBatchItemFailures() {
return batchItemFailures == null ? Collections.emptyList() : batchItemFailures;
}
@Data
@Accessors(chain = true)
public static class BatchItemFailure implements Serializable {
/**
* Sequence number of the record which failed processing.
*/
private String itemIdentifier;
}
}
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