Interface KeyCommands<K>

Type Parameters:
K - the type of the keys, often String
All Superinterfaces:
RedisCommands
All Known Implementing Classes:
BlockingKeyCommandsImpl

public interface KeyCommands<K> extends RedisCommands
Allows executing commands manipulating keys. See the generic command list for further information about these commands.

  • Method Details

    • copy

      boolean copy(K source, K destination)
      Execute the command COPY. Summary: Copy a key Group: generic Requires Redis 6.2.0
      Parameters:
      source - the key
      destination - the key
      Returns:
      true source was copied. false source was not copied.
    • copy

      boolean copy(K source, K destination, CopyArgs copyArgs)
      Execute the command COPY. Summary: Copy a key Group: generic Requires Redis 6.2.0
      Parameters:
      source - the key
      destination - the key
      copyArgs - the additional arguments
      Returns:
      true source was copied. false source was not copied.
    • del

      int del(K... keys)
      Execute the command DEL. Summary: Delete one or multiple keys Group: generic Requires Redis 1.0.0
      Parameters:
      keys - the keys.
      Returns:
      The number of keys that were removed.
    • dump

      String dump(K key)
      Execute the command DUMP. Summary: Return a serialized version of the value stored at the specified key. Group: generic Requires Redis 2.6.0
      Parameters:
      key - the key
      Returns:
      the serialized value.
    • exists

      boolean exists(K key)
      Execute the command EXISTS. Summary: Determine if a key exists Group: generic Requires Redis 1.0.0
      Parameters:
      key - the key to check
      Returns:
      true if the key exists, false otherwise
    • exists

      int exists(K... keys)
      Execute the command EXISTS. Summary: Determine if a key exists Group: generic Requires Redis 1.0.0
      Parameters:
      keys - the keys to check
      Returns:
      the number of keys that exist from those specified as arguments.
    • expire

      boolean expire(K key, long seconds, ExpireArgs expireArgs)
      Execute the command EXPIRE. Summary: Set a key's time to live in seconds Group: generic Requires Redis 1.0.0
      Parameters:
      key - the key
      seconds - the new TTL
      expireArgs - the EXPIRE command extra-arguments
      Returns:
      true the timeout was set. false the timeout was not set. e.g. key doesn't exist, or operation skipped due to the provided arguments.
    • expire

      boolean expire(K key, Duration duration, ExpireArgs expireArgs)
      Execute the command EXPIRE. Summary: Set a key's time to live in seconds Group: generic Requires Redis 1.0.0
      Parameters:
      key - the key
      duration - the new TTL
      expireArgs - the EXPIRE command extra-arguments
      Returns:
      true the timeout was set. false the timeout was not set. e.g. key doesn't exist, or operation skipped due to the provided arguments.
    • expire

      boolean expire(K key, long seconds)
      Execute the command EXPIRE. Summary: Set a key's time to live in seconds Group: generic Requires Redis 1.0.0
      Parameters:
      key - the key
      seconds - the new TTL
      Returns:
      true the timeout was set. false the timeout was not set. e.g. key doesn't exist.
    • expire

      boolean expire(K key, Duration duration)
      Execute the command EXPIRE. Summary: Set a key's time to live in seconds Group: generic Requires Redis 1.0.0
      Parameters:
      key - the key
      duration - the new TTL
      Returns:
      true the timeout was set. false the timeout was not set. e.g. key doesn't exist.
    • expireat

      boolean expireat(K key, long timestamp)
      Execute the command EXPIREAT. Summary: Set the expiration for a key as a UNIX timestamp Group: generic Requires Redis 1.2.0
      Parameters:
      key - the key
      timestamp - the timestamp
      Returns:
      true the timeout was set. false the timeout was not set. e.g. key doesn't exist.
    • expireat

      boolean expireat(K key, Instant timestamp)
      Execute the command EXPIREAT. Summary: Set the expiration for a key as a UNIX timestamp Group: generic Requires Redis 1.2.0
      Parameters:
      key - the key
      timestamp - the timestamp
      Returns:
      true the timeout was set. false the timeout was not set. e.g. key doesn't exist.
    • expireat

      boolean expireat(K key, long timestamp, ExpireArgs expireArgs)
      Execute the command EXPIREAT. Summary: Set the expiration for a key as a UNIX timestamp Group: generic Requires Redis 1.2.0
      Parameters:
      key - the key
      timestamp - the timestamp
      expireArgs - the EXPIREAT command extra-arguments
      Returns:
      true the timeout was set. false the timeout was not set. e.g. key doesn't exist, or operation skipped due to the provided arguments.
    • expireat

      boolean expireat(K key, Instant timestamp, ExpireArgs expireArgs)
      Execute the command EXPIREAT. Summary: Set the expiration for a key as a UNIX timestamp Group: generic Requires Redis 1.2.0
      Parameters:
      key - the key
      timestamp - the timestamp
      expireArgs - the EXPIREAT command extra-arguments
      Returns:
      true the timeout was set. false the timeout was not set. e.g. key doesn't exist, or operation skipped due to the provided arguments.
    • expiretime

      long expiretime(K key)
      Execute the command EXPIRETIME. Summary: Get the expiration Unix timestamp for a key Group: generic Requires Redis 7.0.0
      Parameters:
      key - the key
      Returns:
      the expiration Unix timestamp in seconds, -1 if the key exists but has no associated expiration time.
      Throws:
      RedisKeyNotFoundException - if the key does not exist
    • keys

      List<K> keys(String pattern)
      Execute the command KEYS. Summary: Find all keys matching the given pattern Group: generic Requires Redis 1.0.0
      Parameters:
      pattern - the glob-style pattern
      Returns:
      the list of keys matching pattern.
    • move

      boolean move(K key, long db)
      Execute the command MOVE. Summary: Move a key to another database Group: generic Requires Redis 1.0.0
      Parameters:
      key - the key
      Returns:
      true key was moved. false key was not moved.
    • persist

      boolean persist(K key)
      Execute the command PERSIST. Summary: Remove the expiration from a key Group: generic Requires Redis 2.2.0
      Parameters:
      key - the key
      Returns:
      true the timeout was removed. false key does not exist or does not have an associated timeout.
    • pexpire

      boolean pexpire(K key, Duration duration, ExpireArgs expireArgs)
      Execute the command PEXPIRE. Summary: Set a key's time to live in milliseconds Group: generic Requires Redis 2.6.0
      Parameters:
      key - the key
      duration - the new TTL
      expireArgs - the PEXPIRE command extra-arguments
      Returns:
      true the timeout was set. false the timeout was not set. e.g. key doesn't exist, or operation skipped due to the provided arguments.
    • pexpire

      boolean pexpire(K key, long ms)
      Execute the command PEXPIRE. Summary: Set a key's time to live in milliseconds Group: generic Requires Redis 2.6.0
      Parameters:
      key - the key
      ms - the new TTL
      Returns:
      true the timeout was set. false the timeout was not set. e.g. key doesn't exist.
    • pexpire

      boolean pexpire(K key, Duration duration)
      Execute the command PEXPIRE. Summary: Set a key's time to live in milliseconds Group: generic Requires Redis 2.6.0
      Parameters:
      key - the key
      duration - the new TTL
      Returns:
      true the timeout was set. false the timeout was not set. e.g. key doesn't exist.
    • pexpire

      boolean pexpire(K key, long milliseconds, ExpireArgs expireArgs)
      Execute the command PEXPIRE. Summary: Set a key's time to live in milliseconds Group: generic Requires Redis 2.6.0
      Parameters:
      key - the key
      milliseconds - the new TTL
      expireArgs - the PEXPIRE command extra-arguments
      Returns:
      true the timeout was set. false the timeout was not set. e.g. key doesn't exist.
    • pexpireat

      boolean pexpireat(K key, long timestamp)
      Execute the command PEXPIREAT. Summary: Set the expiration for a key as a UNIX timestamp Group: generic Requires Redis 2.6.0
      Parameters:
      key - the key
      timestamp - the timestamp
      Returns:
      true the timeout was set. false the timeout was not set. e.g. key doesn't exist.
    • pexpireat

      boolean pexpireat(K key, Instant timestamp)
      Execute the command PEXPIREAT. Summary: Set the expiration for a key as a UNIX timestamp Group: generic Requires Redis 2.6.0
      Parameters:
      key - the key
      timestamp - the timestamp
      Returns:
      true the timeout was set. false the timeout was not set. e.g. key doesn't exist.
    • pexpireat

      boolean pexpireat(K key, long timestamp, ExpireArgs expireArgs)
      Execute the command PEXPIREAT. Summary: Set the expiration for a key as a UNIX timestamp Group: generic Requires Redis 2.6.0
      Parameters:
      key - the key
      timestamp - the timestamp
      expireArgs - the EXPIREAT command extra-arguments
      Returns:
      true the timeout was set. false the timeout was not set. e.g. key doesn't exist, or operation skipped due to the provided arguments.
    • pexpireat

      boolean pexpireat(K key, Instant timestamp, ExpireArgs expireArgs)
      Execute the command PEXPIREAT. Summary: Set the expiration for a key as a UNIX timestamp Group: generic Requires Redis 2.6.0
      Parameters:
      key - the key
      timestamp - the timestamp
      expireArgs - the EXPIREAT command extra-arguments
      Returns:
      true the timeout was set. false the timeout was not set. e.g. key doesn't exist, or operation skipped due to the provided arguments.
    • pexpiretime

      long pexpiretime(K key)
      Execute the command PEXPIRETIME. Summary: Get the expiration Unix timestamp for a key Group: generic Requires Redis 2.6.0
      Parameters:
      key - the key
      Returns:
      the expiration Unix timestamp in milliseconds; -1 if the key exists but has no associated expiration time.
      Throws:
      RedisKeyNotFoundException - if the key does not exist
    • pttl

      long pttl(K key) throws RedisKeyNotFoundException
      Execute the command PTTL. Summary: Get the time to live for a key in milliseconds Group: generic Requires Redis 2.6.0
      Parameters:
      key - the key
      Returns:
      TTL in milliseconds. The command returns -1 if the key exists but has no associated expire.
      Throws:
      RedisKeyNotFoundException - if the key does not exist
    • randomkey

      K randomkey()
      Execute the command RANDOMKEY. Summary: Return a random key from the keyspace Group: generic Requires Redis 1.0.0
      Returns:
      the random key, or null when the database is empty.
    • rename

      void rename(K key, K newkey)
      Execute the command RENAME. Summary: Rename a key Group: generic Requires Redis 1.0.0
      Parameters:
      key - the key
      newkey - the new key
    • renamenx

      boolean renamenx(K key, K newkey)
      Execute the command RENAMENX. Summary: Rename a key, only if the new key does not exist Group: generic Requires Redis 1.0.0
      Parameters:
      key - the key
      newkey - the new key
      Returns:
      true if key was renamed to newkey. false if newkey already exists.
    • scan

      KeyScanCursor<K> scan()
      Execute the command SCAN. Summary: Incrementally iterate the keys space Group: generic Requires Redis 2.8.0
      Returns:
      the cursor.
    • scan

      Execute the command SCAN. Summary: Incrementally iterate the keys space Group: generic Requires Redis 2.8.0
      Parameters:
      args - the extra arguments
      Returns:
      the cursor.
    • touch

      int touch(K... keys)
      Execute the command TOUCH. Summary: Alters the last access time of a key(s). Returns the number of existing keys specified. Group: generic Requires Redis 3.2.1
      Parameters:
      keys - the keys
      Returns:
      The number of keys that were touched.
    • ttl

      long ttl(K key) throws RedisKeyNotFoundException
      Execute the command TTL. Summary: Get the time to live for a key in seconds Group: generic Requires Redis 1.0.0
      Parameters:
      key - the key
      Returns:
      TTL in seconds, -1 if the key exists but has no associated expire.
      Throws:
      RedisKeyNotFoundException - if the key does not exist
    • type

      RedisValueType type(K key)
      Execute the command TYPE. Summary: Determine the type stored at key Group: generic Requires Redis 1.0.0
      Parameters:
      key - the key
      Returns:
      type of key, or NONE when key does not exist.
    • unlink

      int unlink(K... keys)
      Execute the command UNLINK. Summary: Delete a key asynchronously in another thread. Otherwise, it is just as DEL, but non-blocking. Group: generic Requires Redis 4.0.0
      Parameters:
      keys - the keys
      Returns:
      The number of keys that were unlinked.