dev.responsive.kafka.internal.stores.SessionOperations Maven / Gradle / Ivy
/*
* Copyright 2024 Responsive Computing, Inc.
*
* 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 dev.responsive.kafka.internal.stores;
import dev.responsive.kafka.internal.utils.SessionKey;
import java.io.Closeable;
import org.apache.kafka.common.utils.Bytes;
import org.apache.kafka.streams.kstream.Windowed;
import org.apache.kafka.streams.processor.internals.RecordBatchingStateRestoreCallback;
import org.apache.kafka.streams.state.KeyValueIterator;
public interface SessionOperations extends Closeable, RecordBatchingStateRestoreCallback {
long initialStreamTime();
void put(final SessionKey key, final byte[] value);
void delete(final SessionKey key);
byte[] fetch(final SessionKey key);
/**
* Retrieves the range of sessions for the given {@code key} with
* an end time between {@code earliestSessionEnd} and {@code latestSessionEnd}.
*
* @param key the data key
* @param earliestSessionEnd the earliest possible end time of the session
* @param latestSessionEnd the latest possible end time of the session
* @return a forwards iterator over the retrieved sessions and values previously set.
*/
KeyValueIterator, byte[]> fetchAll(
final Bytes key,
final long earliestSessionEnd,
final long latestSessionEnd
);
@Override
void close();
}