added method to get the first element of the entries list

Author: hhund

dsf-bpe/dsf-bpe-process-api-v2-impl/src/main/java/dev/dsf/bpe/v2/variables/TargetsImpl.java

@@ -4,6 +4,7 @@
 import java.util.Collection;
 import java.util.Collections;
 import java.util.List;
+import java.util.Optional;
 import java.util.stream.Collectors;
 
 import com.fasterxml.jackson.annotation.JsonCreator;
@@ -72,6 +73,12 @@ public int size()
 		return entries.size();
 	}
 
+	@Override
+	public Optional<Target> getFirst()
+	{
+		return entries.isEmpty() ? Optional.empty() : Optional.of(entries.get(0));
+	}
+
 	@Override
 	public String toString()
 	{

dsf-bpe/dsf-bpe-process-api-v2/src/main/java/dev/dsf/bpe/v2/variables/Targets.java

@@ -2,6 +2,7 @@
 
 import java.util.Collection;
 import java.util.List;
+import java.util.Optional;
 
 import dev.dsf.bpe.v2.constants.BpmnExecutionVariables;
 
@@ -54,4 +55,10 @@ public interface Targets
 	 * @return number of target entries
 	 */
 	int size();
+
+	/**
+	 * @return {@link Optional} with the first element of the target entries, or {@link Optional#empty()} if
+	 *         {@link Targets#isEmpty()}
+	 */
+	Optional<Target> getFirst();
 }