public Integer getNumberOfDays() {
        return this.numberOfDays;
    }
<p>
The number of days the data is stored in the warm tier.
</p>

@return The number of days the data is stored in the warm tier.
aws-java-sdk-iotsitewise/src/main/java/com/amazonaws/services/iotsitewise/model/WarmTierRetentionPeriod.java