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

        this.targetDatabaseEngine = new java.util.ArrayList<String>(targetDatabaseEngine);
    }
<p>
The target database engine for heterogeneous database migration preference.
</p>

@param targetDatabaseEngine
       The target database engine for heterogeneous database migration preference.
@see HeterogeneousTargetDatabaseEngine
aws-java-sdk-migrationhubstrategyrecommendations/src/main/java/com/amazonaws/services/migrationhubstrategyrecommendations/model/Heterogeneous.java