| // 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.server.query.change; |
| |
| import static com.google.gerrit.server.query.change.ChangeQueryBuilder.FIELD_LIMIT; |
| |
| import com.google.gerrit.server.query.IntPredicate; |
| import com.google.gerrit.server.query.Predicate; |
| import com.google.gerrit.server.query.QueryBuilder; |
| import com.google.gerrit.server.query.QueryParseException; |
| |
| public class LimitPredicate extends IntPredicate<ChangeData> { |
| @SuppressWarnings("unchecked") |
| public static Integer getLimit(Predicate<ChangeData> p) { |
| IntPredicate<?> ip = QueryBuilder.find(p, IntPredicate.class, FIELD_LIMIT); |
| return ip != null ? ip.intValue() : null; |
| } |
| |
| public LimitPredicate(int limit) throws QueryParseException { |
| super(ChangeQueryBuilder.FIELD_LIMIT, limit); |
| if (limit <= 0) { |
| throw new QueryParseException("limit must be positive: " + limit); |
| } |
| } |
| |
| @Override |
| public boolean match(ChangeData object) { |
| return true; |
| } |
| |
| @Override |
| public int getCost() { |
| return 0; |
| } |
| } |