Java tutorial
/* * * Copyright 2017 PingCAP, 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, * See the License for the specific language governing permissions and * limitations under the License. * */ package com.pingcap.tikv.operation.transformer; import com.google.common.collect.ImmutableList; import com.pingcap.tikv.row.Row; import com.pingcap.tikv.types.DataType; import java.util.List; public class Skip implements Projection { public static final Skip SKIP_OP = new Skip(); @Override public void set(Object value, Row row, int pos) { } @Override public int size() { return 0; } @Override public List<DataType> getTypes() { return ImmutableList.of(); } }