1 /* 2 * Copyright (C) 2011 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 17 package android.database.sqlite; 18 19 import android.compat.annotation.UnsupportedAppUsage; 20 import android.os.Build; 21 22 /** 23 * Describes a custom SQL function. 24 * 25 * @hide 26 */ 27 public final class SQLiteCustomFunction { 28 @UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.P, trackingBug = 115609023) 29 public final String name; 30 @UnsupportedAppUsage 31 public final int numArgs; 32 public final SQLiteDatabase.CustomFunction callback; 33 34 /** 35 * Create custom function. 36 * 37 * @param name The name of the sqlite3 function. 38 * @param numArgs The number of arguments for the function, or -1 to 39 * support any number of arguments. 40 * @param callback The callback to invoke when the function is executed. 41 */ SQLiteCustomFunction(String name, int numArgs, SQLiteDatabase.CustomFunction callback)42 public SQLiteCustomFunction(String name, int numArgs, 43 SQLiteDatabase.CustomFunction callback) { 44 if (name == null) { 45 throw new IllegalArgumentException("name must not be null."); 46 } 47 48 this.name = name; 49 this.numArgs = numArgs; 50 this.callback = callback; 51 } 52 53 // Called from native. 54 @SuppressWarnings("unused") 55 @UnsupportedAppUsage dispatchCallback(String[] args)56 private void dispatchCallback(String[] args) { 57 callback.callback(args); 58 } 59 } 60