Quintiq file version 2.0
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#parent: #root
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MethodOverride DeleteCondition (LibOpt_Task task) as Boolean
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{
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Description:
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[*
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Conditionally deletes the dataset copy that is attached to the `snapshotcopydataset` snapshot.
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The dataset is deleted if no dataset copy has been created on any downstream component and if no dataset copy has been created after the creation of the `snapshotcopydataset` snapshot on this component.
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Note: All dataset copies that have been created because a `LibOpt_DatasetCopyOnAnyDownstreamCopy` is attached to a component position, are ignored.
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All dataset copies that have already been deleted (or that will be deleted), are also ignored.
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Extending this method (or subclassing the `LibOpt_DatasetCopyOnAnyDownstreamCopy` type) will break the unit tests. We recommend you to create a new subclass from the `LibOpt_DatasetCopyConditional` type if you want to modify this method.
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*]
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TextBody:
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[*
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snapshotcopydataset := select( task,
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SnapshotComponent.Children.astype( LibOpt_SnapshotReplannableCopyDataset ),
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snapshot,
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snapshot.ComponentPositionName() = this.ComponentPositionName()
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);
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hascreateddownstreamsnapshot := exists( task.SnapshotComponent().Descendants(),
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Elements.astype( LibOpt_SnapshotReplannableCopyDataset ),
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snapshot,
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not snapshot.IsDatasetDeleted()
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and not snapshot.IsDatasetDeletedByOptimizer()
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and not snapshot.HasToBeDeleted()
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// Ignore all snapshots on the current component position that were created before snapshotcopydataset
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and ( snapshot.GetComponent() <> task.Component()
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or snapshot.SequenceNr() > snapshotcopydataset.SequenceNr() )
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);
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return not hascreateddownstreamsnapshot;
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*]
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}
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