| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to you 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 org.apache.calcite.materialize; |
| |
| import org.apache.calcite.util.ImmutableBitSet; |
| |
| import com.google.common.collect.ImmutableList; |
| |
| import java.util.Objects; |
| |
| /** Definition of a particular combination of dimensions and measures of a |
| * lattice that is the basis of a materialization. |
| * |
| * <p>Holds similar information to a |
| * {@link org.apache.calcite.materialize.Lattice.Tile} but a lattice is |
| * immutable and tiles are not added after their creation. */ |
| public class TileKey { |
| public final Lattice lattice; |
| public final ImmutableBitSet dimensions; |
| public final ImmutableList<Lattice.Measure> measures; |
| |
| /** Creates a TileKey. */ |
| public TileKey(Lattice lattice, ImmutableBitSet dimensions, |
| ImmutableList<Lattice.Measure> measures) { |
| this.lattice = lattice; |
| this.dimensions = dimensions; |
| this.measures = measures; |
| } |
| |
| @Override public int hashCode() { |
| return Objects.hash(lattice, dimensions); |
| } |
| |
| @Override public boolean equals(Object obj) { |
| return obj == this |
| || obj instanceof TileKey |
| && lattice == ((TileKey) obj).lattice |
| && dimensions.equals(((TileKey) obj).dimensions) |
| && measures.equals(((TileKey) obj).measures); |
| } |
| |
| @Override public String toString() { |
| return "dimensions: " + dimensions + ", measures: " + measures; |
| } |
| } |
| |
| // End TileKey.java |