1 files changed, 22 insertions, 0 deletions
diff --git a/container-search/src/main/java/com/yahoo/search/dispatch/FillInvoker.java b/container-search/src/main/java/com/yahoo/search/dispatch/FillInvoker.java
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+++ b/container-search/src/main/java/com/yahoo/search/dispatch/FillInvoker.java
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+// Copyright 2018 Yahoo Holdings. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
+package com.yahoo.search.dispatch;
+
+import com.yahoo.search.Result;
+
+/**
+ * FillInvoker encapsulates an allocated connection for running a document summary retrieval.
+ * The invocation object can be stateful and should not be reused.
+ *
+ * @author ollivir
+ */
+public abstract class FillInvoker extends CloseableInvoker {
+    /** Retrieve document summaries for the unfilled hits in the given {@link Result} */
+    public void fill(Result result, String summaryClass) {
+        sendFillRequest(result, summaryClass);
+        getFillResults(result, summaryClass);
+    }
+
+    protected abstract void getFillResults(Result result, String summaryClass);
+
+    protected abstract void sendFillRequest(Result result, String summaryClass);
+}