1 files changed, 46 insertions, 0 deletions
diff --git a/java/com/google/gerrit/server/account/GroupIncludeCache.java b/java/com/google/gerrit/server/account/GroupIncludeCache.java
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+++ b/java/com/google/gerrit/server/account/GroupIncludeCache.java
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+// Copyright (C) 2011 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.account;
+
+import com.google.gerrit.reviewdb.client.Account;
+import com.google.gerrit.reviewdb.client.AccountGroup;
+import java.util.Collection;
+
+/** Tracks group inclusions in memory for efficient access. */
+public interface GroupIncludeCache {
+
+  /**
+   * Returns the UUIDs of all groups of which the specified account is a direct member.
+   *
+   * @param memberId the ID of the account
+   * @return the UUIDs of all groups having the account as member
+   */
+  Collection<AccountGroup.UUID> getGroupsWithMember(Account.Id memberId);
+
+  /**
+   * Returns the parent groups of a subgroup.
+   *
+   * @param groupId the UUID of the subgroup
+   * @return the UUIDs of all direct parent groups
+   */
+  Collection<AccountGroup.UUID> parentGroupsOf(AccountGroup.UUID groupId);
+
+  /** @return set of any UUIDs that are not internal groups. */
+  Collection<AccountGroup.UUID> allExternalMembers();
+
+  void evictGroupsWithMember(Account.Id memberId);
+
+  void evictParentGroupsOf(AccountGroup.UUID groupId);
+}