public UpdateDataLakeRequest withConfigurations(DataLakeConfiguration... configurations) {
        if (this.configurations == null) {
            setConfigurations(new java.util.ArrayList<DataLakeConfiguration>(configurations.length));
        }
        for (DataLakeConfiguration ele : configurations) {
            this.configurations.add(ele);
        }
        return this;
    }
<p>
Specify the Region or Regions that will contribute data to the rollup region.
</p>
<p>
<b>NOTE:</b> This method appends the values to the existing list (if any). Use
{@link #setConfigurations(java.util.Collection)} or {@link #withConfigurations(java.util.Collection)} if you want
to override the existing values.
</p>

@param configurations
       Specify the Region or Regions that will contribute data to the rollup region.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-securitylake/src/main/java/com/amazonaws/services/securitylake/model/UpdateDataLakeRequest.java