IndexAdapter.kt
/*
* Copyright 2022 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.solver.query.result
import androidx.room.solver.CodeGenScope
import androidx.room.vo.ColumnIndexVar
/**
* Creates the index variables used by [RowAdapter]s from a cursor.
*
* Most row adapters know how to find the indices needed and provide an implementation of this
* interface via [RowAdapter.getDefaultIndexAdapter].
*/
interface IndexAdapter {
/**
* Called when the cursor variable is ready.
*/
fun onCursorReady(cursorVarName: String, scope: CodeGenScope)
fun getIndexVars(): List<ColumnIndexVar>
}