| /* |
| * Copyright 2018 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 androidx.room.vo |
| |
| import androidx.room.migration.bundle.BundleUtil |
| import androidx.room.migration.bundle.DatabaseViewBundle |
| import androidx.room.parser.ParsedQuery |
| import androidx.room.processing.XDeclaredType |
| import androidx.room.processing.XTypeElement |
| |
| class DatabaseView( |
| element: XTypeElement, |
| val viewName: String, |
| val query: ParsedQuery, |
| type: XDeclaredType, |
| fields: List<Field>, |
| embeddedFields: List<EmbeddedField>, |
| constructor: Constructor? |
| ) : Pojo(element, type, fields, embeddedFields, emptyList(), constructor), |
| HasSchemaIdentity, |
| EntityOrView { |
| |
| override val tableName = viewName |
| |
| val createViewQuery by lazy { |
| createViewQuery(viewName) |
| } |
| |
| /** |
| * List of all the underlying tables including those that are indirectly referenced. |
| * |
| * This is populated by DatabaseProcessor. This cannot be an immutable constructor parameter |
| * as it can only be known after all the other views are initialized and parsed. |
| */ |
| val tables = mutableSetOf<String>() |
| |
| fun toBundle() = DatabaseViewBundle(viewName, createViewQuery(BundleUtil.VIEW_NAME_PLACEHOLDER)) |
| |
| override fun getIdKey(): String { |
| val identityKey = SchemaIdentityKey() |
| identityKey.append(query.original) |
| return identityKey.hash() |
| } |
| |
| private fun createViewQuery(viewName: String): String { |
| // This query should match exactly like it is stored in sqlite_master. The query is |
| // trimmed. "IF NOT EXISTS" should not be included. |
| return "CREATE VIEW `$viewName` AS ${query.original.trim()}" |
| } |
| } |