Package software.amazon.awssdk.services.dlm.model

Class RetainRule

  • All Implemented Interfaces:
    Serializable, SdkPojo, ToCopyableBuilder<RetainRule.Builder,​RetainRule>
    @Generated("software.amazon.awssdk:codegen")
public final class RetainRule
extends Object
implements SdkPojo, Serializable, ToCopyableBuilder<RetainRule.Builder,​RetainRule>

    [Snapshot and AMI policies only] Specifies a retention rule for snapshots created by snapshot policies, or for AMIs created by AMI policies.

    For snapshot policies that have an ArchiveRule, this retention rule applies to standard tier retention. When the retention threshold is met, snapshots are moved from the standard to the archive tier.

    For snapshot policies that do not have an ArchiveRule, snapshots are permanently deleted when this retention threshold is met.

    You can retain snapshots based on either a count or a time interval.

    • Count-based retention

      You must specify Count. If you specify an ArchiveRule for the schedule, then you can specify a retention count of 0 to archive snapshots immediately after creation. If you specify a FastRestoreRule, ShareRule, or a CrossRegionCopyRule, then you must specify a retention count of 1 or more.

    • Age-based retention

      You must specify Interval and IntervalUnit. If you specify an ArchiveRule for the schedule, then you can specify a retention interval of 0 days to archive snapshots immediately after creation. If you specify a FastRestoreRule, ShareRule, or a CrossRegionCopyRule, then you must specify a retention interval of 1 day or more.

    See Also:
    Serialized Form

    • Method Detail

      • count

        public final Integer count()

        The number of snapshots to retain for each volume, up to a maximum of 1000. For example if you want to retain a maximum of three snapshots, specify 3. When the fourth snapshot is created, the oldest retained snapshot is deleted, or it is moved to the archive tier if you have specified an ArchiveRule.

        Returns:
        The number of snapshots to retain for each volume, up to a maximum of 1000. For example if you want to retain a maximum of three snapshots, specify 3. When the fourth snapshot is created, the oldest retained snapshot is deleted, or it is moved to the archive tier if you have specified an ArchiveRule.

      • interval

        public final Integer interval()

        The amount of time to retain each snapshot. The maximum is 100 years. This is equivalent to 1200 months, 5200 weeks, or 36500 days.

        Returns:
        The amount of time to retain each snapshot. The maximum is 100 years. This is equivalent to 1200 months, 5200 weeks, or 36500 days.

      • intervalUnit

        public final RetentionIntervalUnitValues intervalUnit()

        The unit of time for time-based retention. For example, to retain snapshots for 3 months, specify Interval=3 and IntervalUnit=MONTHS. Once the snapshot has been retained for 3 months, it is deleted, or it is moved to the archive tier if you have specified an ArchiveRule.

        If the service returns an enum value that is not available in the current SDK version, intervalUnit will return RetentionIntervalUnitValues.UNKNOWN_TO_SDK_VERSION. The raw value returned by the service is available from intervalUnitAsString().

        Returns:
        The unit of time for time-based retention. For example, to retain snapshots for 3 months, specify Interval=3 and IntervalUnit=MONTHS. Once the snapshot has been retained for 3 months, it is deleted, or it is moved to the archive tier if you have specified an ArchiveRule.
        See Also:
        RetentionIntervalUnitValues

      • intervalUnitAsString

        public final String intervalUnitAsString()

        The unit of time for time-based retention. For example, to retain snapshots for 3 months, specify Interval=3 and IntervalUnit=MONTHS. Once the snapshot has been retained for 3 months, it is deleted, or it is moved to the archive tier if you have specified an ArchiveRule.

        If the service returns an enum value that is not available in the current SDK version, intervalUnit will return RetentionIntervalUnitValues.UNKNOWN_TO_SDK_VERSION. The raw value returned by the service is available from intervalUnitAsString().

        Returns:
        The unit of time for time-based retention. For example, to retain snapshots for 3 months, specify Interval=3 and IntervalUnit=MONTHS. Once the snapshot has been retained for 3 months, it is deleted, or it is moved to the archive tier if you have specified an ArchiveRule.
        See Also:
        RetentionIntervalUnitValues

      • hashCode

        public final int hashCode()
        Overrides:
        hashCode in class Object

      • equals

        public final boolean equals​(Object obj)
        Overrides:
        equals in class Object

      • toString

        public final String toString()
        Returns a string representation of this object. This is useful for testing and debugging. Sensitive data will be redacted from this string using a placeholder value.
        Overrides:
        toString in class Object

      • getValueForField

        public final <T> Optional<T> getValueForField​(String fieldName,
                                              Class<T> clazz)