org.redisson.api.RKeysAsync Maven / Gradle / Ivy
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/**
* Copyright 2016 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.Collection;
import java.util.concurrent.TimeUnit;
/**
*
* @author Nikita Koksharov
*
*/
public interface RKeysAsync {
/**
* Move object to another database
*
* @param name of object
* @param database - Redis database number
* @return true if key was moved else false
*/
RFuture moveAsync(String name, int database);
/**
* Transfer an object from source Redis instance to destination Redis instance
*
* @param name of object
* @param host - destination host
* @param port - destination port
* @param database - destination database
* @return void
*/
RFuture migrateAsync(String name, String host, int port, int database);
/**
* Set a timeout for object. After the timeout has expired,
* the key will automatically be deleted.
*
* @param name of object
* @param timeToLive - timeout before object will be deleted
* @param timeUnit - timeout time unit
* @return true if the timeout was set and false if not
*/
RFuture expireAsync(String name, long timeToLive, TimeUnit timeUnit);
/**
* Set an expire date for object. When expire date comes
* the key will automatically be deleted.
*
* @param name of object
* @param timestamp - expire date in milliseconds (Unix timestamp)
* @return true if the timeout was set and false if not
*/
RFuture expireAtAsync(String name, long timestamp);
/**
* Clear an expire timeout or expire date for object.
*
* @param name of object
* @return true if timeout was removed
* false if object does not exist or does not have an associated timeout
*/
RFuture clearExpireAsync(String name);
/**
* Rename object with oldName to newName
* only if new key is not exists
*
* @param oldName - old name of object
* @param newName - new name of object
* @return true if object has been renamed successfully and false otherwise
*/
RFuture renamenxAsync(String oldName, String newName);
/**
* Rename current object key to newName
*
* @param currentName - current name of object
* @param newName - new name of object
* @return void
*/
RFuture renameAsync(String currentName, String newName);
/**
* Remaining time to live of Redisson object that has a timeout
*
* @param name of key
* @return time in milliseconds
* -2 if the key does not exist.
* -1 if the key exists but has no associated expire.
*/
RFuture remainTimeToLiveAsync(String name);
/**
* Update the last access time of an object.
*
* @param names of keys
* @return count of objects were touched
*/
RFuture touchAsync(String... names);
/**
* Checks if provided keys exist
*
* @param names of keys
* @return amount of existing keys
*/
RFuture countExistsAsync(String... names);
/**
* Get Redis object type by key
*
* @param key - name of key
* @return type of key
*/
RFuture getTypeAsync(String key);
/**
* Get hash slot identifier for key in async mode.
* Available for cluster nodes only
*
* @param key - name of key
* @return slot
*/
RFuture getSlotAsync(String key);
/**
* Get random key in async mode
*
* @return random key
*/
RFuture randomKeyAsync();
/**
* Find keys by key search pattern in async mode
*
* Supported glob-style patterns:
* h?llo subscribes to hello, hallo and hxllo
* h*llo subscribes to hllo and heeeello
* h[ae]llo subscribes to hello and hallo, but not hillo
*
* @param pattern - match pattern
* @return collections of keys
*/
RFuture> findKeysByPatternAsync(String pattern);
/**
* Delete multiple objects by a key pattern.
*
* Method executes in NON atomic way in cluster mode due to lua script limitations.
*
* Supported glob-style patterns:
* h?llo subscribes to hello, hallo and hxllo
* h*llo subscribes to hllo and heeeello
* h[ae]llo subscribes to hello and hallo, but not hillo
*
* @param pattern - match pattern
* @return number of removed keys
*/
RFuture deleteByPatternAsync(String pattern);
/**
* Delete multiple objects
*
* @param objects of Redisson
* @return number of removed keys
*/
RFuture deleteAsync(RObject ... objects);
/**
* Delete multiple objects by name
*
* @param keys - object names
* @return number of removed keys
*/
RFuture deleteAsync(String ... keys);
/**
* Delete multiple objects by name.
* Actual removal will happen later asynchronously.
*
* Requires Redis 4.0+
*
* @param keys
* @return number of removed keys
*/
RFuture unlinkAsync(String ... keys);
/**
* Returns the number of keys in the currently-selected database in async mode
*
* @return number of keys
*/
RFuture countAsync();
/**
* Delete all keys of currently selected database
* @return void
*/
RFuture flushdbAsync();
/**
* Delete all keys of all existing databases
* @return void
*/
RFuture flushallAsync();
/**
* Delete all keys of currently selected database
* in background without blocking server.
*
* Requires Redis 4.0+
*
* @return void
*/
RFuture flushdbParallelAsync();
/**
* Delete all keys of all existing databases
* in background without blocking server.
*
* Requires Redis 4.0+
*
* @return void
*/
RFuture flushallParallelAsync();
}