#80 add template supporting labels

Author: aburmeis

src/main/java/com/arangodb/springframework/transaction/TransactionAttributeTemplate.java

@@ -0,0 +1,41 @@
+package com.arangodb.springframework.transaction;
+
+import org.springframework.transaction.PlatformTransactionManager;
+import org.springframework.transaction.interceptor.TransactionAttribute;
+import org.springframework.transaction.support.TransactionTemplate;
+
+import java.util.Collection;
+import java.util.Collections;
+
+public class TransactionAttributeTemplate extends TransactionTemplate implements TransactionAttribute {
+
+    private String qualifier;
+    private Collection<String> labels = Collections.emptyList();
+
+    public TransactionAttributeTemplate(PlatformTransactionManager transactionManager) {
+        super(transactionManager);
+    }
+
+    @Override
+    public String getQualifier() {
+        return qualifier;
+    }
+
+    public void setQualifier(String qualifier) {
+        this.qualifier = qualifier;
+    }
+
+    @Override
+    public Collection<String> getLabels() {
+        return labels;
+    }
+
+    public void setLabels(Collection<String> labels) {
+        this.labels = labels;
+    }
+
+    @Override
+    public boolean rollbackOn(Throwable ex) {
+        return (ex instanceof RuntimeException || ex instanceof Error);
+    }
+}