public GlobalSecondaryIndexDescription withBackfilling(Boolean backfilling) {
        setBackfilling(backfilling);
        return this;
    }
<p>
Indicates whether the index is currently backfilling. <i>Backfilling</i> is the process of reading items from the
table and determining whether they can be added to the index. (Not all items will qualify: For example, a
partition key cannot have any duplicate values.) If an item can be added to the index, DynamoDB will do so. After
all items have been processed, the backfilling operation is complete and <code>Backfilling</code> is false.
</p>
<p>
You can delete an index that is being created during the <code>Backfilling</code> phase when
<code>IndexStatus</code> is set to CREATING and <code>Backfilling</code> is true. You can't delete the index that
is being created when <code>IndexStatus</code> is set to CREATING and <code>Backfilling</code> is false.
</p>
<note>
<p>
For indexes that were created during a <code>CreateTable</code> operation, the <code>Backfilling</code> attribute
does not appear in the <code>DescribeTable</code> output.
</p>
</note>

@param backfilling
       Indicates whether the index is currently backfilling. <i>Backfilling</i> is the process of reading items
       from the table and determining whether they can be added to the index. (Not all items will qualify: For
       example, a partition key cannot have any duplicate values.) If an item can be added to the index, DynamoDB
       will do so. After all items have been processed, the backfilling operation is complete and
       <code>Backfilling</code> is false.</p>
       <p>
       You can delete an index that is being created during the <code>Backfilling</code> phase when
       <code>IndexStatus</code> is set to CREATING and <code>Backfilling</code> is true. You can't delete the
       index that is being created when <code>IndexStatus</code> is set to CREATING and <code>Backfilling</code>
       is false.
       </p>
       <note>
       <p>
       For indexes that were created during a <code>CreateTable</code> operation, the <code>Backfilling</code>
       attribute does not appear in the <code>DescribeTable</code> output.
       </p>
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-dynamodb/src/main/java/com/amazonaws/services/dynamodbv2/model/GlobalSecondaryIndexDescription.java