| // 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; |
| |
| import com.google.common.collect.ImmutableList; |
| import java.sql.Timestamp; |
| |
| /** Document field types supported by the secondary index system. */ |
| public class FieldType<T> { |
| /** A single integer-valued field. */ |
| public static final FieldType<Integer> INTEGER = new FieldType<>("INTEGER"); |
| |
| /** A single-integer-valued field matched using range queries. */ |
| public static final FieldType<Integer> INTEGER_RANGE = new FieldType<>("INTEGER_RANGE"); |
| |
| /** A single integer-valued field. */ |
| public static final FieldType<Long> LONG = new FieldType<>("LONG"); |
| |
| /** A single date/time-valued field. */ |
| public static final FieldType<Timestamp> TIMESTAMP = new FieldType<>("TIMESTAMP"); |
| |
| /** A string field searched using exact-match semantics. */ |
| public static final FieldType<String> EXACT = new FieldType<>("EXACT"); |
| |
| /** A string field searched using prefix. */ |
| public static final FieldType<String> PREFIX = new FieldType<>("PREFIX"); |
| |
| /** A string field searched using fuzzy-match semantics. */ |
| public static final FieldType<String> FULL_TEXT = new FieldType<>("FULL_TEXT"); |
| |
| /** A field that is only stored as raw bytes and cannot be queried. */ |
| public static final FieldType<byte[]> STORED_ONLY = new FieldType<>("STORED_ONLY"); |
| |
| /** List of all types that are stored as {@link String} in the index. */ |
| public static final ImmutableList<FieldType<String>> STRING_TYPES = |
| ImmutableList.of(EXACT, PREFIX, FULL_TEXT); |
| |
| /** List of all types that are stored as {@link Integer} in the index. */ |
| public static final ImmutableList<FieldType<Integer>> INTEGER_TYPES = |
| ImmutableList.of(INTEGER_RANGE, INTEGER); |
| |
| private final String name; |
| |
| private FieldType(String name) { |
| this.name = name; |
| } |
| |
| public String getName() { |
| return name; |
| } |
| |
| @Override |
| public String toString() { |
| return name; |
| } |
| |
| public static IllegalArgumentException badFieldType(FieldType<?> t) { |
| return new IllegalArgumentException("unknown index field type " + t); |
| } |
| } |