org.redisson.api.RObject Maven / Gradle / Ivy
/**
* Copyright 2018 Nikita Koksharov
*
* 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 org.redisson.api;
import java.util.concurrent.TimeUnit;
import org.redisson.client.codec.Codec;
/**
* Base interface for all Redisson objects
*
* @author Nikita Koksharov
*
*/
public interface RObject extends RObjectAsync {
/**
* Returns size of object in Redis memory
*
* @return size of object
*/
long sizeInMemory();
/**
* Restores object using its state returned by {@link #dump()} method.
*
* @param state - state of object
*/
void restore(byte[] state);
/**
* Restores object using its state returned by {@link #dump()} method and set time to live for it.
*
* @param state - state of object
* @param timeToLive - time to live of the object
* @param timeUnit - time unit
*/
void restore(byte[] state, long timeToLive, TimeUnit timeUnit);
/**
* Restores and replaces object if it already exists.
*
* @param state - state of the object
*/
void restoreAndReplace(byte[] state);
/**
* Restores and replaces object if it already exists and set time to live for it.
*
* @param state - state of the object
* @param timeToLive - time to live of the object
* @param timeUnit - time unit
*/
void restoreAndReplace(byte[] state, long timeToLive, TimeUnit timeUnit);
/**
* Returns dump of object
*
* @return dump
*/
byte[] dump();
/**
* Update the last access time of an object.
*
* @return true if object was touched else false
*/
boolean touch();
/**
* Copy object from source Redis instance to destination Redis instance
*
* @param host - destination host
* @param port - destination port
* @param database - destination database
* @param timeout - maximum idle time in any moment of the communication with the destination instance in milliseconds
*/
void migrate(String host, int port, int database, long timeout);
/**
* Copy object from source Redis instance to destination Redis instance
*
* @param host - destination host
* @param port - destination port
* @param database - destination database
* @param timeout - maximum idle time in any moment of the communication with the destination instance in milliseconds
*/
void copy(String host, int port, int database, long timeout);
/**
* Move object to another database
*
* @param database - Redis database number
* @return true if key was moved else false
*/
boolean move(int database);
/**
* Returns name of object
*
* @return name - name of object
*/
String getName();
/**
* Deletes the object
*
* @return true if it was exist and deleted else false
*/
boolean delete();
/**
* Delete the objects.
* Actual removal will happen later asynchronously.
*
* Requires Redis 4.0+
*
* @return true if it was exist and deleted else false
*/
boolean unlink();
/**
* Rename current object key to newName
*
* @param newName - new name of object
*/
void rename(String newName);
/**
* Rename current object key to newName
* only if new key is not exists
*
* @param newName - new name of object
* @return true if object has been renamed successfully and false otherwise
*/
boolean renamenx(String newName);
/**
* Check object existence
*
* @return true if object exists and false otherwise
*/
boolean isExists();
/**
* Returns the underlying Codec used by this RObject
*
* @return Codec of object
*/
Codec getCodec();
}