/*
 * Copyright 2013 Basho Technologies Inc
 *
 * 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.basho.riak.client;

import com.basho.riak.client.core.RiakCluster;
import java.util.concurrent.ExecutionException;

/**
 *
 * @author Dave Rusek <drusuk at basho dot com>
 * @since 2.0
 */
public abstract class RiakCommand<T>
{
    final T execute(RiakCluster cluster) throws ExecutionException, InterruptedException 
    {
        return execute(cluster);
    }
    protected abstract T doExecute(RiakCluster cluster) throws ExecutionException, InterruptedException;
} 


/*
 * Copyright 2013 Basho Technologies Inc
 *
 * 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.basho.riak.client;

import com.basho.riak.client.core.RiakCluster;
import java.util.concurrent.ExecutionException;

/**
 *
 * @author Dave Rusek <drusuk at basho dot com>
 * @since 2.0
 */
public abstract class RiakCommand<T>
{
    final T execute(RiakCluster cluster) throws ExecutionException, InterruptedException 
    {
        return doExecute(cluster);
    }
    protected abstract T doExecute(RiakCluster cluster) throws ExecutionException, InterruptedException;
} 


Call correct method.