public java.util.List<String> getDimensions() {
        return dimensions;
    }
<p>
A list of specific dimensions from a dimension group. If this parameter is not present, then it signifies that
all of the dimensions in the group were requested, or are present in the response.
</p>
<p>
Valid values for elements in the <code>Dimensions</code> array are:
</p>
<ul>
<li>
<p>
<code>db.application.name</code> - The name of the application that is connected to the database. Valid values
are as follows:
</p>
<ul>
<li>
<p>
Aurora PostgreSQL
</p>
</li>
<li>
<p>
Amazon RDS PostgreSQL
</p>
</li>
<li>
<p>
Amazon DocumentDB
</p>
</li>
</ul>
</li>
<li>
<p>
<code>db.host.id</code> - The host ID of the connected client (all engines).
</p>
</li>
<li>
<p>
<code>db.host.name</code> - The host name of the connected client (all engines).
</p>
</li>
<li>
<p>
<code>db.name</code> - The name of the database to which the client is connected. Valid values are as follows:
</p>
<ul>
<li>
<p>
Aurora PostgreSQL
</p>
</li>
<li>
<p>
Amazon RDS PostgreSQL
</p>
</li>
<li>
<p>
Aurora MySQL
</p>
</li>
<li>
<p>
Amazon RDS MySQL
</p>
</li>
<li>
<p>
Amazon RDS MariaDB
</p>
</li>
<li>
<p>
Amazon DocumentDB
</p>
</li>
</ul>
</li>
<li>
<p>
<code>db.query.id</code> - The query ID generated by Performance Insights (only Amazon DocumentDB).
</p>
</li>
<li>
<p>
<code>db.query.db_id</code> - The query ID generated by the database (only Amazon DocumentDB).
</p>
</li>
<li>
<p>
<code>db.query.statement</code> - The text of the query that is being run (only Amazon DocumentDB).
</p>
</li>
<li>
<p>
<code>db.query.tokenized_id</code>
</p>
</li>
<li>
<p>
<code>db.query.tokenized.id</code> - The query digest ID generated by Performance Insights (only Amazon
DocumentDB).
</p>
</li>
<li>
<p>
<code>db.query.tokenized.db_id</code> - The query digest ID generated by Performance Insights (only Amazon
DocumentDB).
</p>
</li>
<li>
<p>
<code>db.query.tokenized.statement</code> - The text of the query digest (only Amazon DocumentDB).
</p>
</li>
<li>
<p>
<code>db.session_type.name</code> - The type of the current session (only Amazon DocumentDB).
</p>
</li>
<li>
<p>
<code>db.sql.id</code> - The hash of the full, non-tokenized SQL statement generated by Performance Insights (all
engines except Amazon DocumentDB).
</p>
</li>
<li>
<p>
<code>db.sql.db_id</code> - Either the SQL ID generated by the database engine, or a value generated by
Performance Insights that begins with <code>pi-</code> (all engines except Amazon DocumentDB).
</p>
</li>
<li>
<p>
<code>db.sql.statement</code> - The full text of the SQL statement that is running, as in
<code>SELECT * FROM employees</code> (all engines except Amazon DocumentDB)
</p>
</li>
<li>
<p>
<code>db.sql.tokenized_id</code>
</p>
</li>
<li>
<p>
<code>db.sql_tokenized.id</code> - The hash of the SQL digest generated by Performance Insights (all engines
except Amazon DocumentDB). In the console, <code>db.sql_tokenized.id</code> is called the Support ID because
Amazon Web Services Support can look at this data to help you troubleshoot database issues.
</p>
</li>
<li>
<p>
<code>db.sql_tokenized.db_id</code> - Either the native database ID used to refer to the SQL statement, or a
synthetic ID such as <code>pi-2372568224</code> that Performance Insights generates if the native database ID
isn't available (all engines except Amazon DocumentDB).
</p>
</li>
<li>
<p>
<code>db.sql_tokenized.statement</code> - The text of the SQL digest, as in
<code>SELECT * FROM employees WHERE employee_id = ?</code> (all engines except Amazon DocumentDB)
</p>
</li>
<li>
<p>
<code>db.user.id</code> - The ID of the user logged in to the database (all engines except Amazon DocumentDB).
</p>
</li>
<li>
<p>
<code>db.user.name</code> - The name of the user logged in to the database (all engines except Amazon
DocumentDB).
</p>
</li>
<li>
<p>
<code>db.wait_event.name</code> - The event for which the backend is waiting (all engines except Amazon
DocumentDB).
</p>
</li>
<li>
<p>
<code>db.wait_event.type</code> - The type of event for which the backend is waiting (all engines except Amazon
DocumentDB).
</p>
</li>
<li>
<p>
<code>db.wait_event_type.name</code> - The name of the event type for which the backend is waiting (all engines
except Amazon DocumentDB).
</p>
</li>
<li>
<p>
<code>db.wait_state.name</code> - The event for which the backend is waiting (only Amazon DocumentDB).
</p>
</li>
</ul>

@return A list of specific dimensions from a dimension group. If this parameter is not present, then it signifies
        that all of the dimensions in the group were requested, or are present in the response.</p>
        <p>
        Valid values for elements in the <code>Dimensions</code> array are:
        </p>
        <ul>
        <li>
        <p>
        <code>db.application.name</code> - The name of the application that is connected to the database. Valid
        values are as follows:
        </p>
        <ul>
        <li>
        <p>
        Aurora PostgreSQL
        </p>
        </li>
        <li>
        <p>
        Amazon RDS PostgreSQL
        </p>
        </li>
        <li>
        <p>
        Amazon DocumentDB
        </p>
        </li>
        </ul>
        </li>
        <li>
        <p>
        <code>db.host.id</code> - The host ID of the connected client (all engines).
        </p>
        </li>
        <li>
        <p>
        <code>db.host.name</code> - The host name of the connected client (all engines).
        </p>
        </li>
        <li>
        <p>
        <code>db.name</code> - The name of the database to which the client is connected. Valid values are as
        follows:
        </p>
        <ul>
        <li>
        <p>
        Aurora PostgreSQL
        </p>
        </li>
        <li>
        <p>
        Amazon RDS PostgreSQL
        </p>
        </li>
        <li>
        <p>
        Aurora MySQL
        </p>
        </li>
        <li>
        <p>
        Amazon RDS MySQL
        </p>
        </li>
        <li>
        <p>
        Amazon RDS MariaDB
        </p>
        </li>
        <li>
        <p>
        Amazon DocumentDB
        </p>
        </li>
        </ul>
        </li>
        <li>
        <p>
        <code>db.query.id</code> - The query ID generated by Performance Insights (only Amazon DocumentDB).
        </p>
        </li>
        <li>
        <p>
        <code>db.query.db_id</code> - The query ID generated by the database (only Amazon DocumentDB).
        </p>
        </li>
        <li>
        <p>
        <code>db.query.statement</code> - The text of the query that is being run (only Amazon DocumentDB).
        </p>
        </li>
        <li>
        <p>
        <code>db.query.tokenized_id</code>
        </p>
        </li>
        <li>
        <p>
        <code>db.query.tokenized.id</code> - The query digest ID generated by Performance Insights (only Amazon
        DocumentDB).
        </p>
        </li>
        <li>
        <p>
        <code>db.query.tokenized.db_id</code> - The query digest ID generated by Performance Insights (only
        Amazon DocumentDB).
        </p>
        </li>
        <li>
        <p>
        <code>db.query.tokenized.statement</code> - The text of the query digest (only Amazon DocumentDB).
        </p>
        </li>
        <li>
        <p>
        <code>db.session_type.name</code> - The type of the current session (only Amazon DocumentDB).
        </p>
        </li>
        <li>
        <p>
        <code>db.sql.id</code> - The hash of the full, non-tokenized SQL statement generated by Performance
        Insights (all engines except Amazon DocumentDB).
        </p>
        </li>
        <li>
        <p>
        <code>db.sql.db_id</code> - Either the SQL ID generated by the database engine, or a value generated by
        Performance Insights that begins with <code>pi-</code> (all engines except Amazon DocumentDB).
        </p>
        </li>
        <li>
        <p>
        <code>db.sql.statement</code> - The full text of the SQL statement that is running, as in
        <code>SELECT * FROM employees</code> (all engines except Amazon DocumentDB)
        </p>
        </li>
        <li>
        <p>
        <code>db.sql.tokenized_id</code>
        </p>
        </li>
        <li>
        <p>
        <code>db.sql_tokenized.id</code> - The hash of the SQL digest generated by Performance Insights (all
        engines except Amazon DocumentDB). In the console, <code>db.sql_tokenized.id</code> is called the Support
        ID because Amazon Web Services Support can look at this data to help you troubleshoot database issues.
        </p>
        </li>
        <li>
        <p>
        <code>db.sql_tokenized.db_id</code> - Either the native database ID used to refer to the SQL statement,
        or a synthetic ID such as <code>pi-2372568224</code> that Performance Insights generates if the native
        database ID isn't available (all engines except Amazon DocumentDB).
        </p>
        </li>
        <li>
        <p>
        <code>db.sql_tokenized.statement</code> - The text of the SQL digest, as in
        <code>SELECT * FROM employees WHERE employee_id = ?</code> (all engines except Amazon DocumentDB)
        </p>
        </li>
        <li>
        <p>
        <code>db.user.id</code> - The ID of the user logged in to the database (all engines except Amazon
        DocumentDB).
        </p>
        </li>
        <li>
        <p>
        <code>db.user.name</code> - The name of the user logged in to the database (all engines except Amazon
        DocumentDB).
        </p>
        </li>
        <li>
        <p>
        <code>db.wait_event.name</code> - The event for which the backend is waiting (all engines except Amazon
        DocumentDB).
        </p>
        </li>
        <li>
        <p>
        <code>db.wait_event.type</code> - The type of event for which the backend is waiting (all engines except
        Amazon DocumentDB).
        </p>
        </li>
        <li>
        <p>
        <code>db.wait_event_type.name</code> - The name of the event type for which the backend is waiting (all
        engines except Amazon DocumentDB).
        </p>
        </li>
        <li>
        <p>
        <code>db.wait_state.name</code> - The event for which the backend is waiting (only Amazon DocumentDB).
        </p>
        </li>
aws-java-sdk-pi/src/main/java/com/amazonaws/services/pi/model/DimensionGroup.java