public void setConfigurations(java.util.Collection<DataLakeConfiguration> configurations) {
        if (configurations == null) {
            this.configurations = null;
            return;
        }

        this.configurations = new java.util.ArrayList<DataLakeConfiguration>(configurations);
    }
<p>
Specify the Region or Regions that will contribute data to the rollup region.
</p>

@param configurations
       Specify the Region or Regions that will contribute data to the rollup region.
aws-java-sdk-securitylake/src/main/java/com/amazonaws/services/securitylake/model/CreateDataLakeRequest.java