public String getConnectionType() {
        return this.connectionType;
    }
<p>
The <code>connectionType</code>, as provided to the underlying Glue library. This node type supports the
following connection types:
</p>
<ul>
<li>
<p>
<code>opensearch</code>
</p>
</li>
<li>
<p>
<code>azuresql</code>
</p>
</li>
<li>
<p>
<code>azurecosmos</code>
</p>
</li>
<li>
<p>
<code>bigquery</code>
</p>
</li>
<li>
<p>
<code>saphana</code>
</p>
</li>
<li>
<p>
<code>teradata</code>
</p>
</li>
<li>
<p>
<code>vertica</code>
</p>
</li>
</ul>

@return The <code>connectionType</code>, as provided to the underlying Glue library. This node type supports the
        following connection types: </p>
        <ul>
        <li>
        <p>
        <code>opensearch</code>
        </p>
        </li>
        <li>
        <p>
        <code>azuresql</code>
        </p>
        </li>
        <li>
        <p>
        <code>azurecosmos</code>
        </p>
        </li>
        <li>
        <p>
        <code>bigquery</code>
        </p>
        </li>
        <li>
        <p>
        <code>saphana</code>
        </p>
        </li>
        <li>
        <p>
        <code>teradata</code>
        </p>
        </li>
        <li>
        <p>
        <code>vertica</code>
        </p>
        </li>
aws-java-sdk-glue/src/main/java/com/amazonaws/services/glue/model/ConnectorDataSource.java