#1427 - QueryCache should be cleared, if one of a dependent bean is updated

Initial work, does not include propagation across cluster.

src/main/java/io/ebeaninternal/server/transaction/JdbcTransaction.java

@@ -187,6 +187,7 @@ public class JdbcTransaction implements SpiTransaction, TxnProfileEventCodes {
   protected ProfileLocation profileLocation;
 
   protected final long startNanos;
+  private final long startMillis;
 
   /**
    * Create a new JdbcTransaction.
@@ -203,6 +204,7 @@ public class JdbcTransaction implements SpiTransaction, TxnProfileEventCodes {
       this.startNanos = System.nanoTime();
 
       if (manager == null) {
+        this.startMillis = System.currentTimeMillis();
         this.logSql = false;
         this.logSummary = false;
         this.skipCacheAfterWrite = true;
@@ -210,6 +212,7 @@ public class JdbcTransaction implements SpiTransaction, TxnProfileEventCodes {
         this.batchOnCascadeMode = PersistBatch.NONE;
         this.onQueryOnly = OnQueryOnly.ROLLBACK;
       } else {
+        this.startMillis = manager.clockNowEpoch();
         this.logSql = manager.isLogSql();
         this.logSummary = manager.isLogSummary();
         this.skipCacheAfterWrite = manager.isSkipCacheAfterWrite();
@@ -235,6 +238,11 @@ public class JdbcTransaction implements SpiTransaction, TxnProfileEventCodes {
     return label;
   }
 
+  @Override
+  public long getStartMillis() {
+    return startMillis;
+  }
+
   @Override
   public long profileOffset() {
     return (profileStream == null) ? 0 : profileStream.offset();
@@ -853,7 +861,7 @@ public class JdbcTransaction implements SpiTransaction, TxnProfileEventCodes {
   public TransactionEvent getEvent() {
     queryOnly = false;
     if (event == null) {
-      event = new TransactionEvent();
+      event = new TransactionEvent(startMillis);
     }
     return event;
   }
@@ -1050,7 +1058,7 @@ public class JdbcTransaction implements SpiTransaction, TxnProfileEventCodes {
       // the event has been sent to the transaction manager
       // for postCommit processing (l2 cache updates etc)
       // start a new transaction event
-      event = new TransactionEvent();
+      event = new TransactionEvent(startMillis);
 
     } catch (Exception e) {
       doRollback(e);