| // Copyright (C) 2020 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.change; |
| |
| /** |
| * Condition to be checked by {@link AddToAttentionSetOp} and {@link RemoveFromAttentionSetOp} |
| * before performing an attention set update. |
| */ |
| @FunctionalInterface |
| public interface AttentionSetUpdateCondition { |
| /** |
| * Checks whether the condition is fulfilled and the attention set update should be performed. |
| * |
| * @return {@code true} if the attention set should be updated, {@code false} if the attention set |
| * should not be updated |
| */ |
| boolean check(); |
| } |