public void setFunctionNames(java.util.Collection<StringFilter> functionNames) {
        if (functionNames == null) {
            this.functionNames = null;
            return;
        }

        this.functionNames = new java.util.ArrayList<StringFilter>(functionNames);
    }
<p>
The Amazon Web Services Lambda function names to include in the aggregation results.
</p>

@param functionNames
       The Amazon Web Services Lambda function names to include in the aggregation results.
aws-java-sdk-inspector2/src/main/java/com/amazonaws/services/inspector2/model/LambdaFunctionAggregation.java