+ SimpleShardDataTreeCohort(final ShardDataTree dataTree, final DataTreeModification transaction,
+ final TransactionIdentifier transactionId, final Exception nextFailure) {
+ this.dataTree = Preconditions.checkNotNull(dataTree);
+ this.transaction = Preconditions.checkNotNull(transaction);
+ this.transactionId = Preconditions.checkNotNull(transactionId);
+ this.userCohorts = null;
+ this.nextFailure = Preconditions.checkNotNull(nextFailure);
+ }
+