public String getRelationalDatabaseBlueprintId() {
        return this.relationalDatabaseBlueprintId;
    }
<p>
The blueprint ID for your new database. A blueprint describes the major engine version of a database.
</p>
<p>
You can get a list of database blueprints IDs by using the <code>get relational database blueprints</code>
operation.
</p>

@return The blueprint ID for your new database. A blueprint describes the major engine version of a database.</p>
        <p>
        You can get a list of database blueprints IDs by using the
        <code>get relational database blueprints</code> operation.
aws-java-sdk-lightsail/src/main/java/com/amazonaws/services/lightsail/model/CreateRelationalDatabaseRequest.java