com.palantir.atlasdb.keyvalue.api.watch.NoOpLockWatchManager Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of atlasdb-api Show documentation
Show all versions of atlasdb-api Show documentation
Palantir open source project
/*
* (c) Copyright 2019 Palantir Technologies Inc. All rights reserved.
*
* 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.palantir.atlasdb.keyvalue.api.watch;
import com.palantir.atlasdb.keyvalue.api.cache.NoOpTransactionScopedCache;
import com.palantir.atlasdb.keyvalue.api.cache.TransactionScopedCache;
import com.palantir.lock.watch.CommitUpdate;
import com.palantir.lock.watch.LockWatchCache;
import com.palantir.lock.watch.LockWatchCacheImpl;
import com.palantir.lock.watch.LockWatchReferences;
import com.palantir.lock.watch.LockWatchVersion;
import com.palantir.lock.watch.TransactionsLockWatchUpdate;
import java.util.Optional;
import java.util.Set;
public final class NoOpLockWatchManager extends LockWatchManagerInternal {
private final LockWatchCache cache;
private NoOpLockWatchManager(LockWatchCache cache) {
this.cache = cache;
}
public static LockWatchManagerInternal create() {
return new NoOpLockWatchManager(LockWatchCacheImpl.noOp());
}
@Override
public void registerPreciselyWatches(Set lockWatchReferences) {
// Ignored
}
@Override
boolean isEnabled() {
return cache.getEventCache().isEnabled();
}
@Override
CommitUpdate getCommitUpdate(long startTs) {
return cache.getEventCache().getCommitUpdate(startTs);
}
@Override
public LockWatchCache getCache() {
return cache;
}
@Override
public void removeTransactionStateFromCache(long startTs) {
cache.removeTransactionStateFromCache(startTs);
}
@Override
public void onTransactionCommit(long startTs) {
cache.onTransactionCommit(startTs);
}
@Override
TransactionsLockWatchUpdate getUpdateForTransactions(
Set startTimestamps, Optional version) {
return cache.getEventCache().getUpdateForTransactions(startTimestamps, version);
}
@Override
public TransactionScopedCache getTransactionScopedCache(long startTs) {
return NoOpTransactionScopedCache.create();
}
@Override
public TransactionScopedCache getReadOnlyTransactionScopedCache(long startTs) {
return NoOpTransactionScopedCache.create().createReadOnlyCache(CommitUpdate.invalidateAll());
}
@Override
public void close() {
// cool story
}
}