Ensure that the session cache is only used on entity objects marked @Cacheable.

src/main/java/net/helenus/core/AbstractUnitOfWork.java

@@ -213,8 +213,10 @@ public abstract class AbstractUnitOfWork<E extends Exception> implements UnitOfW
 		});
 		// log.record(txn::abort)
 		// cache.invalidateSince(txn::start time)
-        elapsedTime_.stop();
-        logTimers("aborted");
+        if (!hasAborted()) {
+            elapsedTime_.stop();
+            logTimers("aborted");
+        }
 	}
 
 	private void mergeCache(Table<String, String, Object> from) {

src/main/java/net/helenus/core/operation/AbstractOptionalOperation.java

@@ -72,9 +72,9 @@ public abstract class AbstractOptionalOperation<E, O extends AbstractOptionalOpe
 		try {
             Optional<E> result = Optional.empty();
             E cacheResult = null;
-            boolean updateCache = true;
+            boolean updateCache = isSessionCacheable();
 
-            if (enableCache) {
+            if (enableCache && isSessionCacheable()) {
                 List<Facet> facets = bindFacetValues();
                 String tableName = CacheUtil.schemaName(facets);
                 cacheResult = (E)sessionOps.checkCache(tableName, facets);
@@ -95,7 +95,10 @@ public abstract class AbstractOptionalOperation<E, O extends AbstractOptionalOpe
             }
 
             if (updateCache && result.isPresent()) {
-                sessionOps.updateCache(result.get(), getFacets());
+                List<Facet> facets = getFacets();
+                if (facets != null && facets.size() > 1) {
+                    sessionOps.updateCache(result.get(), facets);
+                }
             }
             return result;
         } finally {
@@ -123,10 +126,12 @@ public abstract class AbstractOptionalOperation<E, O extends AbstractOptionalOpe
 					result = Optional.of(cacheResult);
 					updateCache = false;
                 } else {
-                    String tableName = CacheUtil.schemaName(facets);
-				    cacheResult = (E)sessionOps.checkCache(tableName, facets);
-				    if (cacheResult != null) {
-				        result = Optional.of(cacheResult);
+                    if (isSessionCacheable()) {
+                        String tableName = CacheUtil.schemaName(facets);
+                        cacheResult = (E) sessionOps.checkCache(tableName, facets);
+                        if (cacheResult != null) {
+                            result = Optional.of(cacheResult);
+                        }
                     }
                 }
                 timer.stop();

src/main/java/net/helenus/core/operation/AbstractStreamOperation.java

@@ -66,9 +66,9 @@ public abstract class AbstractStreamOperation<E, O extends AbstractStreamOperati
         try {
             Stream<E> resultStream = null;
             E cacheResult = null;
-            boolean updateCache = true;
+            boolean updateCache = isSessionCacheable();
 
-            if (enableCache) {
+            if (enableCache && isSessionCacheable()) {
                 List<Facet> facets = bindFacetValues();
                 String tableName = CacheUtil.schemaName(facets);
                 cacheResult = (E) sessionOps.checkCache(tableName, facets);
@@ -89,13 +89,15 @@ public abstract class AbstractStreamOperation<E, O extends AbstractStreamOperati
             }
 
             if (updateCache && resultStream != null) {
-                List<E> again = new ArrayList<>();
                 List<Facet> facets = getFacets();
-                resultStream.forEach(result -> {
-                    sessionOps.updateCache(result, facets);
-                    again.add(result);
-                });
-                resultStream = again.stream();
+                if (facets != null && facets.size() > 1) {
+                    List<E> again = new ArrayList<>();
+                    resultStream.forEach(result -> {
+                        sessionOps.updateCache(result, facets);
+                        again.add(result);
+                    });
+                    resultStream = again.stream();
+                }
             }
             return resultStream;
 

src/main/java/net/helenus/core/operation/BoundOperation.java

@@ -39,4 +39,7 @@ public final class BoundOperation<E> extends AbstractOperation<E, BoundOperation
 	public Statement buildStatement(boolean cached) {
 		return boundStatement;
 	}
+
+    @Override
+    public boolean isSessionCacheable() { return delegate.isSessionCacheable(); }
 }

src/main/java/net/helenus/core/operation/BoundOptionalOperation.java

@@ -41,4 +41,7 @@ public final class BoundOptionalOperation<E> extends AbstractOptionalOperation<E
 	public Statement buildStatement(boolean cached) {
 		return boundStatement;
 	}
+
+    @Override
+    public boolean isSessionCacheable() { return delegate.isSessionCacheable(); }
 }

src/main/java/net/helenus/core/operation/BoundStreamOperation.java

@@ -49,4 +49,7 @@ public final class BoundStreamOperation<E> extends AbstractStreamOperation<E, Bo
 	public Statement buildStatement(boolean cached) {
 		return boundStatement;
 	}
+
+    @Override
+    public boolean isSessionCacheable() { return delegate.isSessionCacheable(); }
 }

src/main/java/net/helenus/core/operation/Operation.java

@@ -104,4 +104,6 @@ public abstract class Operation<E> {
 		return null;
 	}
 
+	public boolean isSessionCacheable() { return false; }
+
 }

src/main/java/net/helenus/core/operation/PreparedOperation.java

@@ -43,4 +43,5 @@ public final class PreparedOperation<E> {
 	public String toString() {
 		return preparedStatement.getQueryString();
 	}
+
 }

src/main/java/net/helenus/core/operation/SelectFirstOperation.java

@@ -59,4 +59,7 @@ public final class SelectFirstOperation<E> extends AbstractFilterOptionalOperati
 	public Optional<E> transform(ResultSet resultSet) {
 		return delegate.transform(resultSet).findFirst();
 	}
+
+    @Override
+    public boolean isSessionCacheable() { return delegate.isSessionCacheable(); }
 }

src/main/java/net/helenus/core/operation/SelectFirstTransformingOperation.java

@@ -54,4 +54,7 @@ public final class SelectFirstTransformingOperation<R, E>
 	public Optional<R> transform(ResultSet resultSet) {
 		return delegate.transform(resultSet).findFirst().map(fn);
 	}
+
+    @Override
+    public boolean isSessionCacheable() { return delegate.isSessionCacheable(); }
 }

src/main/java/net/helenus/core/operation/SelectOperation.java

@@ -185,6 +185,9 @@ public final class SelectOperation<E> extends AbstractFilterStreamOperation<E, S
 		return this;
 	}
 
+    @Override
+    public boolean isSessionCacheable() { return isCacheable; }
+
 	@Override
 	public List<Facet> getFacets() {
 		HelenusEntity entity = props.get(0).getEntity();

src/test/java/net/helenus/test/integration/core/simple/User.java

@@ -21,7 +21,6 @@ import net.helenus.mapping.annotation.PartitionKey;
 import net.helenus.mapping.annotation.Table;
 
 @Table("simple_users")
-@Cacheable
 public interface User {
 
   @PartitionKey