org.infinispan.client.hotrod.impl.operations.RemoveOperation Maven / Gradle / Ivy

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package org.infinispan.client.hotrod.impl.operations;

import net.jcip.annotations.Immutable;
import org.infinispan.client.hotrod.Flag;
import org.infinispan.client.hotrod.impl.protocol.Codec;
import org.infinispan.client.hotrod.impl.transport.Transport;
import org.infinispan.client.hotrod.impl.transport.TransportFactory;

import java.util.concurrent.atomic.AtomicInteger;

/**
 * Implement "remove" operation as described in Hot Rod
 * protocol specification.
 *
 * @author [email protected]
 * @since 4.1
 */
@Immutable
public class RemoveOperation extends AbstractKeyOperation {

   public RemoveOperation(Codec codec, TransportFactory transportFactory,
            byte[] key, byte[] cacheName, AtomicInteger topologyId, Flag[] flags) {
      super(codec, transportFactory, key, cacheName, topologyId, flags);
   }

   @Override
   public byte[] executeOperation(Transport transport) {
      short status = sendKeyOperation(key, transport, REMOVE_REQUEST, REMOVE_RESPONSE);
      byte[] result = returnPossiblePrevValue(transport, status);
      if (status == KEY_DOES_NOT_EXIST_STATUS)
         return null;

      return result; // NO_ERROR_STATUS
   }
}