1 files changed, 51 insertions, 0 deletions
diff --git a/gerrit-index/src/main/java/com/google/gerrit/index/query/QueryResult.java b/gerrit-index/src/main/java/com/google/gerrit/index/query/QueryResult.java
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+++ b/gerrit-index/src/main/java/com/google/gerrit/index/query/QueryResult.java
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+// Copyright (C) 2014 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.gerrit.index.query;
+
+import com.google.auto.value.AutoValue;
+import com.google.gerrit.common.Nullable;
+import java.util.List;
+
+/** Results of a query over entities. */
+@AutoValue
+public abstract class QueryResult<T> {
+  public static <T> QueryResult<T> create(
+      @Nullable String query, Predicate<T> predicate, int limit, List<T> entites) {
+    boolean more;
+    if (entites.size() > limit) {
+      more = true;
+      entites = entites.subList(0, limit);
+    } else {
+      more = false;
+    }
+    return new AutoValue_QueryResult<>(query, predicate, entites, more);
+  }
+
+  /** @return the original query string, or null if the query was created programmatically. */
+  @Nullable
+  public abstract String query();
+
+  /** @return the predicate after all rewriting and other modification by the query subsystem. */
+  public abstract Predicate<T> predicate();
+
+  /** @return the query results. */
+  public abstract List<T> entities();
+
+  /**
+   * @return whether the query could be retried with a higher start/limit to produce more results.
+   *     Never true if {@link #entities()} is empty.
+   */
+  public abstract boolean more();
+}