public void setEventTypeCodes(java.util.Collection<String> eventTypeCodes) {
        if (eventTypeCodes == null) {
            this.eventTypeCodes = null;
            return;
        }

        this.eventTypeCodes = new java.util.ArrayList<String>(eventTypeCodes);
    }
<p>
A list of unique identifiers for event types. For example,
<code>"AWS_EC2_SYSTEM_MAINTENANCE_EVENT","AWS_RDS_MAINTENANCE_SCHEDULED".</code>
</p>

@param eventTypeCodes
       A list of unique identifiers for event types. For example,
       <code>"AWS_EC2_SYSTEM_MAINTENANCE_EVENT","AWS_RDS_MAINTENANCE_SCHEDULED".</code>
aws-java-sdk-health/src/main/java/com/amazonaws/services/health/model/EventFilter.java