public Boolean getExactSettings() {
        return this.exactSettings;
    }
<p>
If this attribute is Y, the current call to <code>ModifyDataProvider</code> replaces all existing data provider
settings with the exact settings that you specify in this call. If this attribute is N, the current call to
<code>ModifyDataProvider</code> does two things:
</p>
<ul>
<li>
<p>
It replaces any data provider settings that already exist with new values, for settings with the same names.
</p>
</li>
<li>
<p>
It creates new data provider settings that you specify in the call, for settings with different names.
</p>
</li>
</ul>

@return If this attribute is Y, the current call to <code>ModifyDataProvider</code> replaces all existing data
        provider settings with the exact settings that you specify in this call. If this attribute is N, the
        current call to <code>ModifyDataProvider</code> does two things: </p>
        <ul>
        <li>
        <p>
        It replaces any data provider settings that already exist with new values, for settings with the same
        names.
        </p>
        </li>
        <li>
        <p>
        It creates new data provider settings that you specify in the call, for settings with different names.
        </p>
        </li>
aws-java-sdk-dms/src/main/java/com/amazonaws/services/databasemigrationservice/model/ModifyDataProviderRequest.java