Class RetainRule

java.lang.Object
software.amazon.awssdk.services.dlm.model.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>

[Custom 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:

  • Method Details

    • 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:

    • 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:

    • toBuilder

      public RetainRule.Builder toBuilder()
      Description copied from interface: ToCopyableBuilder
      Take this object and create a builder that contains all of the current property values of this object.
      Specified by:
      toBuilder in interface ToCopyableBuilder<RetainRule.Builder,RetainRule>
      Returns:
      a builder for type T

    • builder

      public static RetainRule.Builder builder()

    • serializableBuilderClass

      public static Class<? extends RetainRule.Builder> serializableBuilderClass()

    • hashCode

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

    • equals

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

    • equalsBySdkFields

      public final boolean equalsBySdkFields(Object obj)
      Description copied from interface: SdkPojo
      Indicates whether some other object is "equal to" this one by SDK fields. An SDK field is a modeled, non-inherited field in an SdkPojo class, and is generated based on a service model.

      If an SdkPojo class does not have any inherited fields, equalsBySdkFields and equals are essentially the same.

      Specified by:
      equalsBySdkFields in interface SdkPojo
      Parameters:
      obj - the object to be compared with
      Returns:
      true if the other object equals to this object by sdk fields, false otherwise.

    • 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)

    • sdkFields

      public final List<SdkField<?>> sdkFields()
      Specified by:
      sdkFields in interface SdkPojo
      Returns:
      List of SdkField in this POJO. May be empty list but should never be null.