1 /* 2 * Licensed to the Apache Software Foundation (ASF) under one or more 3 * contributor license agreements. See the NOTICE file distributed with 4 * this work for additional information regarding copyright ownership. 5 * The ASF licenses this file to You under the Apache License, Version 2.0 6 * (the "License"); you may not use this file except in compliance with 7 * the License. You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 */ 17 18 package org.apache.shardingsphere.infra.database.core.metadata.data.model; 19 20 import lombok.EqualsAndHashCode; 21 import lombok.Getter; 22 import lombok.RequiredArgsConstructor; 23 import lombok.Setter; 24 import lombok.ToString; 25 26 import java.util.Collection; 27 import java.util.LinkedList; 28 29 /** 30 * Index meta data. 31 */ 32 @RequiredArgsConstructor 33 @Getter 34 @EqualsAndHashCode 35 @ToString 36 public final class IndexMetaData { 37 38 private final String name; 39 40 private final Collection<String> columns = new LinkedList<>(); 41 42 @Setter 43 private boolean unique; 44 }