public UpdateRelationalDatabaseParametersRequest withParameters(RelationalDatabaseParameter... parameters) {
        if (this.parameters == null) {
            setParameters(new java.util.ArrayList<RelationalDatabaseParameter>(parameters.length));
        }
        for (RelationalDatabaseParameter ele : parameters) {
            this.parameters.add(ele);
        }
        return this;
    }
<p>
The database parameters to update.
</p>
<p>
<b>NOTE:</b> This method appends the values to the existing list (if any). Use
{@link #setParameters(java.util.Collection)} or {@link #withParameters(java.util.Collection)} if you want to
override the existing values.
</p>

@param parameters
       The database parameters to update.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-lightsail/src/main/java/com/amazonaws/services/lightsail/model/UpdateRelationalDatabaseParametersRequest.java