public OverallVolume withDomainIspPlacements(DomainIspPlacement... domainIspPlacements) {
        if (this.domainIspPlacements == null) {
            setDomainIspPlacements(new java.util.ArrayList<DomainIspPlacement>(domainIspPlacements.length));
        }
        for (DomainIspPlacement ele : domainIspPlacements) {
            this.domainIspPlacements.add(ele);
        }
        return this;
    }
<p>
An object that contains inbox and junk mail placement metrics for individual email providers.
</p>
<p>
<b>NOTE:</b> This method appends the values to the existing list (if any). Use
{@link #setDomainIspPlacements(java.util.Collection)} or {@link #withDomainIspPlacements(java.util.Collection)}
if you want to override the existing values.
</p>

@param domainIspPlacements
       An object that contains inbox and junk mail placement metrics for individual email providers.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-pinpointemail/src/main/java/com/amazonaws/services/pinpointemail/model/OverallVolume.java