public CacheCluster withSecurityGroups(SecurityGroupMembership... securityGroups) {
        if (this.securityGroups == null) {
            setSecurityGroups(new com.amazonaws.internal.SdkInternalList<SecurityGroupMembership>(securityGroups.length));
        }
        for (SecurityGroupMembership ele : securityGroups) {
            this.securityGroups.add(ele);
        }
        return this;
    }
public CacheCluster withSecurityGroups ( SecurityGroupMembership ... securityGroups ) { if ( this . securityGroups == null ) { setSecurityGroups ( new com . amazonaws . internal . SdkInternalList < SecurityGroupMembership > ( securityGroups . length ) ) ; } for ( SecurityGroupMembership ele : securityGroups ) { this . securityGroups . add ( ele ) ; } return this ; }
<p>
A list of VPC Security Groups associated with the cluster.
</p>
<p>
<b>NOTE:</b> This method appends the values to the existing list (if any). Use
{@link #setSecurityGroups(java.util.Collection)} or {@link #withSecurityGroups(java.util.Collection)} if you want
to override the existing values.
</p>

@param securityGroups
A list of VPC Security Groups associated with the cluster.
@return Returns a reference to this object so that method calls can be chained together.