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// Copyright (C) 2016 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.update;
import com.google.gerrit.reviewdb.client.Change;
import com.google.gerrit.reviewdb.server.ChangeAccess;
import com.google.gerrit.reviewdb.server.ReviewDb;
import com.google.gerrit.reviewdb.server.ReviewDbWrapper;
import com.google.gwtorm.server.AtomicUpdate;
public class BatchUpdateReviewDb extends ReviewDbWrapper {
private final ChangeAccess changesWrapper;
BatchUpdateReviewDb(ReviewDb delegate) {
super(delegate);
changesWrapper = new BatchUpdateChanges(delegate.changes());
}
public ReviewDb unsafeGetDelegate() {
return delegate;
}
@Override
public ChangeAccess changes() {
return changesWrapper;
}
@Override
public void commit() {
throw new UnsupportedOperationException(
"do not call commit; BatchUpdate always manages transactions");
}
@Override
public void rollback() {
throw new UnsupportedOperationException(
"do not call rollback; BatchUpdate always manages transactions");
}
private static class BatchUpdateChanges extends ChangeAccessWrapper {
private BatchUpdateChanges(ChangeAccess delegate) {
super(delegate);
}
@Override
public void insert(Iterable<Change> instances) {
throw new UnsupportedOperationException(
"do not call insert; change is automatically inserted");
}
@Override
public void upsert(Iterable<Change> instances) {
throw new UnsupportedOperationException(
"do not call upsert; existing changes are updated automatically,"
+ " or use InsertChangeOp for insertion");
}
@Override
public void update(Iterable<Change> instances) {
throw new UnsupportedOperationException(
"do not call update; change is updated automatically");
}
@Override
public void beginTransaction(Change.Id key) {
throw new UnsupportedOperationException("updateChange is always called within a transaction");
}
@Override
public void deleteKeys(Iterable<Change.Id> keys) {
throw new UnsupportedOperationException(
"do not call deleteKeys; use ChangeContext#deleteChange()");
}
@Override
public void delete(Iterable<Change> instances) {
throw new UnsupportedOperationException(
"do not call delete; use ChangeContext#deleteChange()");
}
@Override
public Change atomicUpdate(Change.Id key, AtomicUpdate<Change> update) {
throw new UnsupportedOperationException(
"do not call atomicUpdate; updateChange is always called within a transaction");
}
}
}
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