| /* |
| * Copyright (C) 2017 The Android Open Source Project |
| * |
| * 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 android.arch.persistence.room.migration.bundle; |
| |
| import android.support.annotation.RestrictTo; |
| |
| import com.google.gson.annotations.SerializedName; |
| |
| import java.util.ArrayList; |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| |
| /** |
| * Data class that holds the schema information for a |
| * {@link android.arch.persistence.room.Database Database}. |
| * |
| * @hide |
| */ |
| @RestrictTo(RestrictTo.Scope.LIBRARY_GROUP) |
| public class DatabaseBundle { |
| @SerializedName("version") |
| private int mVersion; |
| @SerializedName("identityHash") |
| private String mIdentityHash; |
| @SerializedName("entities") |
| private List<EntityBundle> mEntities; |
| // then entity where we keep room information |
| @SerializedName("setupQueries") |
| private List<String> mSetupQueries; |
| private transient Map<String, EntityBundle> mEntitiesByTableName; |
| |
| /** |
| * Creates a new database |
| * @param version Version |
| * @param identityHash Identity hash |
| * @param entities List of entities |
| */ |
| public DatabaseBundle(int version, String identityHash, List<EntityBundle> entities, |
| List<String> setupQueries) { |
| mVersion = version; |
| mIdentityHash = identityHash; |
| mEntities = entities; |
| mSetupQueries = setupQueries; |
| } |
| |
| /** |
| * @return The identity has of the Database. |
| */ |
| public String getIdentityHash() { |
| return mIdentityHash; |
| } |
| |
| /** |
| * @return The database version. |
| */ |
| public int getVersion() { |
| return mVersion; |
| } |
| |
| /** |
| * @return List of entities. |
| */ |
| public List<EntityBundle> getEntities() { |
| return mEntities; |
| } |
| |
| /** |
| * @return Map of entities, keyed by table name. |
| */ |
| @SuppressWarnings("unused") |
| public Map<String, EntityBundle> getEntitiesByTableName() { |
| if (mEntitiesByTableName == null) { |
| mEntitiesByTableName = new HashMap<>(); |
| for (EntityBundle bundle : mEntities) { |
| mEntitiesByTableName.put(bundle.getTableName(), bundle); |
| } |
| } |
| return mEntitiesByTableName; |
| } |
| |
| /** |
| * @return List of SQL queries to build this database from scratch. |
| */ |
| public List<String> buildCreateQueries() { |
| List<String> result = new ArrayList<>(); |
| for (EntityBundle entityBundle : mEntities) { |
| result.addAll(entityBundle.buildCreateQueries()); |
| } |
| result.addAll(mSetupQueries); |
| return result; |
| } |
| } |