com.hazelcast.client.impl.spi.ClientInvocationService Maven / Gradle / Ivy
/*
* Copyright (c) 2008-2024, Hazelcast, Inc. All Rights Reserved.
*
* 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 com.hazelcast.client.impl.spi;
import com.hazelcast.client.LoadBalancer;
import com.hazelcast.client.config.ClientConfig;
import com.hazelcast.client.impl.connection.ClientConnection;
import com.hazelcast.client.impl.connection.tcp.RoutingMode;
import com.hazelcast.client.impl.protocol.ClientMessage;
import com.hazelcast.client.impl.spi.impl.ClientInvocation;
import com.hazelcast.cluster.Member;
import com.hazelcast.internal.nio.Connection;
import com.hazelcast.internal.nio.ConnectionListener;
import javax.annotation.Nonnull;
import java.util.UUID;
import java.util.function.Consumer;
/**
* Invocation service for Hazelcast clients.
*
* Allows remote invocations on different targets like {@link ClientConnection},
* partition owners or {@link Member} based targets.
*/
public interface ClientInvocationService {
/**
* @param invocation to be invoked
* @param connection to be invoked on
* @return true if successfully send to given connection, false otherwise
*/
boolean invokeOnConnection(ClientInvocation invocation, ClientConnection connection);
/**
* @param invocation to be invoked
* @param partitionId partition id that invocation should go to
* @return true if successfully send to partition owner, false otherwise
*/
boolean invokeOnPartitionOwner(ClientInvocation invocation,
int partitionId);
/**
* @param invocation to be invoked
* @param uuid member uuid that invocation should go to
* @return true if successfully send the member with given uuid, false otherwise
*/
boolean invokeOnTarget(ClientInvocation invocation,
UUID uuid);
/**
* Behaviour of this method varies for {@link RoutingMode#SINGLE_MEMBER}, {@link RoutingMode#MULTI_MEMBER},
* and {@link RoutingMode#ALL_MEMBERS} routing clients.
* {@link RoutingMode#SINGLE_MEMBER} routing invokes on only available connection
* {@link RoutingMode#MULTI_MEMBER} and {@link RoutingMode#ALL_MEMBERS} routing randomly picks a connection
* to invoke on via {@link LoadBalancer}.
*
* @param invocation to be invoked
* @return true if successfully send, false otherwise
*/
boolean invoke(ClientInvocation invocation);
boolean isRedoOperation();
/**
* @see ClientConfig#isBackupAckToClientEnabled()
*/
boolean isBackupAckToClientEnabled();
Consumer getResponseHandler();
/**
* This will be called on each connection close.
* Note that is different than {@link ConnectionListener#connectionRemoved(Connection)} where `connectionRemoved`
* means an authenticated connection is disconnected
*
* @param connection closed connection
*/
void onConnectionClose(ClientConnection connection);
/**
* @param connection provided connection to query if it has any associated invocation
* @return {@code true} if there is an ongoing invocation that
* still uses the provided connection, {@code false} otherwise
*/
boolean isConnectionInUse(@Nonnull ClientConnection connection);
}