public DescribeVaultResult withNumberOfArchives(Long numberOfArchives) {
        setNumberOfArchives(numberOfArchives);
        return this;
    }
<p>
The number of archives in the vault as of the last inventory date. This field will return <code>null</code> if an
inventory has not yet run on the vault, for example if you just created the vault.
</p>

@param numberOfArchives
       The number of archives in the vault as of the last inventory date. This field will return
       <code>null</code> if an inventory has not yet run on the vault, for example if you just created the vault.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-glacier/src/main/java/com/amazonaws/services/glacier/model/DescribeVaultResult.java