BaseRedisConnection.java

package com.lambdaworks.redis;

import java.io.Closeable;
import java.util.List;
import java.util.Map;

import com.lambdaworks.redis.output.CommandOutput;
import com.lambdaworks.redis.protocol.CommandArgs;
import com.lambdaworks.redis.protocol.ProtocolKeyword;

/**
 * 
 * Basic synchronous executed commands.
 * 
 * @param <K> Key type.
 * @param <V> Value type.
 * @author Mark Paluch
 * @since 3.0
 * @deprecated Use {@link com.lambdaworks.redis.api.sync.BaseRedisCommands}
 */
@Deprecated
public interface BaseRedisConnection<K, V> extends Closeable {

    /**
     * Post a message to a channel.
     * 
     * @param channel the channel type: key
     * @param message the message type: value
     * @return Long integer-reply the number of clients that received the message.
     */
    Long publish(K channel, V message);

    /**
     * Lists the currently *active channels*.
     * 
     * @return List<K> array-reply a list of active channels, optionally matching the specified pattern.
     */
    List<K> pubsubChannels();

    /**
     * Lists the currently *active channels*.
     * 
     * @param channel the key
     * @return List<K> array-reply a list of active channels, optionally matching the specified pattern.
     */
    List<K> pubsubChannels(K channel);

    /**
     * Returns the number of subscribers (not counting clients subscribed to patterns) for the specified channels.
     *
     * @param channels channel keys
     * @return array-reply a list of channels and number of subscribers for every channel.
     */
    Map<K, Long> pubsubNumsub(K... channels);

    /**
     * Returns the number of subscriptions to patterns.
     * 
     * @return Long integer-reply the number of patterns all the clients are subscribed to.
     */
    Long pubsubNumpat();

    /**
     * Echo the given string.
     * 
     * @param msg the message type: value
     * @return V bulk-string-reply
     */
    V echo(V msg);

    /**
     * Return the role of the instance in the context of replication.
     *
     * @return List<Object> array-reply where the first element is one of master, slave, sentinel and the additional
     *         elements are role-specific.
     */
    List<Object> role();

    /**
     * Ping the server.
     * 
     * @return String simple-string-reply
     */
    String ping();

    /**
     * Switch connection to Read-Only mode when connecting to a cluster.
     *
     * @return String simple-string-reply.
     */
    String readOnly();

    /**
     * Switch connection to Read-Write mode (default) when connecting to a cluster.
     *
     * @return String simple-string-reply.
     */
    String readWrite();

    /**
     * Close the connection.
     * 
     * @return String simple-string-reply always OK.
     */
    String quit();

    /**
     * Create a SHA1 digest from a Lua script.
     * 
     * @param script script content
     * @return the SHA1 value
     */
    String digest(V script);

    /**
     * Discard all commands issued after MULTI.
     * 
     * @return String simple-string-reply always {@code OK}.
     */
    String discard();

    /**
     * Execute all commands issued after MULTI.
     * 
     * @return List<Object> array-reply each element being the reply to each of the commands in the atomic transaction.
     * 
     *         When using {@code WATCH}, {@code EXEC} can return a
     */
    List<Object> exec();

    /**
     * Mark the start of a transaction block.
     * 
     * @return String simple-string-reply always {@code OK}.
     */
    String multi();

    /**
     * Watch the given keys to determine execution of the MULTI/EXEC block.
     * 
     * @param keys the key
     * @return String simple-string-reply always {@code OK}.
     */
    String watch(K... keys);

    /**
     * Forget about all watched keys.
     * 
     * @return String simple-string-reply always {@code OK}.
     */
    String unwatch();

    /**
     * Wait for replication.
     * 
     * @param replicas minimum number of replicas
     * @param timeout timeout in milliseconds
     * @return number of replicas
     */
    Long waitForReplication(int replicas, long timeout);

    /**
     * Dispatch a command to the Redis Server. Please note the command output type must fit to the command response.
     *
     * @param type the command, must not be {@literal null}.
     * @param output the command output, must not be {@literal null}.
     * @param <T> response type
     * @return the command response
     */
    <T> T dispatch(ProtocolKeyword type, CommandOutput<K, V, T> output);

    /**
     * Dispatch a command to the Redis Server. Please note the command output type must fit to the command response.
     *
     * @param type the command, must not be {@literal null}.
     * @param output the command output, must not be {@literal null}.
     * @param args the command arguments, must not be {@literal null}.
     * @param <T> response type
     * @return the command response
     */
    <T> T dispatch(ProtocolKeyword type, CommandOutput<K, V, T> output, CommandArgs<K, V> args);

    /**
     * Close the connection. The connection will become not usable anymore as soon as this method was called.
     */
    @Override
    void close();

    /**
     * 
     * @return true if the connection is open (connected and not closed).
     */
    boolean isOpen();

}