org.infinispan.commands.write.EvictCommand Maven / Gradle / Ivy

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Infinispan Embedded All-in-One module

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package org.infinispan.commands.write;

import org.infinispan.commands.LocalCommand;
import org.infinispan.commands.Visitor;
import org.infinispan.context.Flag;
import org.infinispan.context.InvocationContext;
import org.infinispan.metadata.Metadata;
import org.infinispan.notifications.cachelistener.CacheNotifier;
import org.infinispan.util.logging.Log;
import org.infinispan.util.logging.LogFactory;

import java.util.Set;

/**
 * @author [email protected]
 * @since 4.0
 */
public class EvictCommand extends RemoveCommand implements LocalCommand {

   private static final Log log = LogFactory.getLog(EvictCommand.class);

   public EvictCommand(Object key, CacheNotifier notifier, Set flags) {
      super(key, null, notifier, flags, null);
   }

   @Override
   public Object acceptVisitor(InvocationContext ctx, Visitor visitor) throws Throwable {
      return visitor.visitEvictCommand(ctx, this);
   }

   @Override
   public Object perform(InvocationContext ctx) throws Throwable {
      if (key == null) {
         throw new NullPointerException("Key is null!!");
      }
      super.perform(ctx);
      return null;
   }

   @Override
   public void notify(InvocationContext ctx, Object value, Metadata previousMetadata) {
      /**
       * We don't notify in pre for evictions - the notification is done in
       * {@link org.infinispan.interceptors.locking.ClusteringDependentLogic.AbstractClusteringDependentLogic#notifyCommitEntry(boolean, boolean, boolean, org.infinispan.container.entries.CacheEntry, org.infinispan.context.InvocationContext, org.infinispan.commands.FlagAffectedCommand, org.infinispan.container.entries.InternalCacheEntry)}
        */
   }

   @Override
   public byte getCommandId() {
      return -1; // these are not meant for replication!
   }
   
   @Override
   public String toString() {
      return new StringBuilder()
         .append("EvictCommand{key=")
         .append(key)
         .append(", value=").append(value)
         .append(", flags=").append(flags)
         .append("}")
         .toString();
   }
}