1/* 2 * Copyright (C) 2017 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package androidx.room.migration.bundle; 18 19import androidx.annotation.RestrictTo; 20 21import com.google.gson.annotations.SerializedName; 22 23import java.util.List; 24 25/** 26 * Data class that holds the schema information about a table Index. 27 * 28 * @hide 29 */ 30@RestrictTo(RestrictTo.Scope.LIBRARY_GROUP) 31public class IndexBundle implements SchemaEquality<IndexBundle> { 32 // should match Index.kt 33 public static final String DEFAULT_PREFIX = "index_"; 34 @SerializedName("name") 35 private String mName; 36 @SerializedName("unique") 37 private boolean mUnique; 38 @SerializedName("columnNames") 39 private List<String> mColumnNames; 40 @SerializedName("createSql") 41 private String mCreateSql; 42 43 public IndexBundle(String name, boolean unique, List<String> columnNames, 44 String createSql) { 45 mName = name; 46 mUnique = unique; 47 mColumnNames = columnNames; 48 mCreateSql = createSql; 49 } 50 51 public String getName() { 52 return mName; 53 } 54 55 public boolean isUnique() { 56 return mUnique; 57 } 58 59 public List<String> getColumnNames() { 60 return mColumnNames; 61 } 62 63 /** 64 * @hide 65 */ 66 @RestrictTo(RestrictTo.Scope.LIBRARY_GROUP) 67 public String create(String tableName) { 68 return BundleUtil.replaceTableName(mCreateSql, tableName); 69 } 70 71 @Override 72 public boolean isSchemaEqual(IndexBundle other) { 73 if (mUnique != other.mUnique) return false; 74 if (mName.startsWith(DEFAULT_PREFIX)) { 75 if (!other.mName.startsWith(DEFAULT_PREFIX)) { 76 return false; 77 } 78 } else if (other.mName.startsWith(DEFAULT_PREFIX)) { 79 return false; 80 } else if (!mName.equals(other.mName)) { 81 return false; 82 } 83 84 // order matters 85 if (mColumnNames != null ? !mColumnNames.equals(other.mColumnNames) 86 : other.mColumnNames != null) { 87 return false; 88 } 89 return true; 90 } 91} 92