io.aws.lambda.events.dynamodb.DynamodbTimeWindowEvent Maven / Gradle / Ivy

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package io.aws.lambda.events.dynamodb;

import io.aws.lambda.events.TimeWindow;
import lombok.Data;
import lombok.EqualsAndHashCode;
import lombok.experimental.Accessors;
import org.jetbrains.annotations.NotNull;

import java.io.Serializable;
import java.util.Collections;
import java.util.Map;

/**
 * Represents an Amazon Dynamodb event when using time
 * windows.
 */
@Data
@Accessors(chain = true)
@EqualsAndHashCode(callSuper = true)
public class DynamodbTimeWindowEvent extends DynamodbEvent implements Serializable {

    /**
     * Time window for the records in the event.
     */
    private TimeWindow window;

    /**
     * State being built up to this invoke in the time window.
     */
    private Map state;

    /**
     * Shard id of the records
     */
    private String shardId;

    /**
     * Dynamodb stream arn.
     */
    private String eventSourceArn;

    /**
     * Set to true for the last invoke of the time window. Subsequent invoke will
     * start a new time window along with a fresh state.
     */
    private Boolean isFinalInvokeForWindow;

    /**
     * Set to true if window is terminated prematurely. Subsequent invoke will
     * continue the same window with a fresh state.
     */
    private Boolean isWindowTerminatedEarly;

    public @NotNull Map getState() {
        return state == null ? Collections.emptyMap() : state;
    }
}