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+// Copyright (C) 2013 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.gerrit.index.FieldDef;
+import com.google.gerrit.index.FieldType;
+
+/** Index-aware predicate that includes a field type annotation. */
+public abstract class IndexPredicate<I> extends OperatorPredicate<I> {
+ private final FieldDef<I, ?> def;
+
+ protected IndexPredicate(FieldDef<I, ?> def, String value) {
+ super(def.getName(), value);
+ this.def = def;
+ }
+
+ protected IndexPredicate(FieldDef<I, ?> def, String name, String value) {
+ super(name, value);
+ this.def = def;
+ }
+
+ public FieldDef<I, ?> getField() {
+ return def;
+ }
+
+ public FieldType<?> getType() {
+ return def.getType();
+ }
+}