Tooling updates, database updates

.github/workflows/gradle.yml

@@ -6,37 +6,26 @@ name: Java CI with Gradle
 on:
   push:
   pull_request:
+  workflow_dispatch: # Allow running manually from web UI
 
 jobs:
   build:
 
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v2
-      - name: Set up JDK 11
-        uses: actions/setup-java@v2
-        with:
-          java-version: '11'
-          distribution: 'adopt'
-      - name: Cache Gradle packages
-        uses: actions/cache@v2
+      - name: Check out
+        uses: actions/checkout@0ad4b8fadaa221de15dcec353f45205ec38ea70b # v4.1.4
+
+      - name: Set up JDK 17
+        uses: actions/setup-java@99b8673ff64fbf99d8d325f52d9a5bdedb8483e9 # v4.2.1
         with:
-          path: |
-            ~/.gradle/caches
-            ~/.gradle/wrapper
-          key: ${{ runner.os }}-gradle-${{ hashFiles('**/*.gradle*', '**/gradle-wrapper.properties') }}
-          restore-keys: |
-            ${{ runner.os }}-gradle-
-      - name: Grant execute permission for gradlew
-        run: chmod +x gradlew
+          distribution: 'temurin'
+          java-version: '17'
+          cache: gradle
+
       - name: Gradle Info
         run: ./gradlew -version
+
       - name: Build with Gradle
         run: ./gradlew build
-      - name: Cleanup Gradle Cache
-        # Remove some files from the Gradle cache, so they aren't cached by GitHub Actions.
-        # Restoring these files from a GitHub Actions cache might cause problems for future builds.
-        run: |
-          rm -f ~/.gradle/caches/modules-2/modules-2.lock
-          rm -f ~/.gradle/caches/modules-2/gc.properties

README.md

@@ -1,17 +1,23 @@
-Performance Benchmarks
-======================
-This is an Android app to measure object persistence performance of ObjectBox, Realm, SQLite (with greenDAO as ORM).
+# ObjectBox Java Database Performance Benchmarks
 
-Results are printed on the UI and saved as .tsv files.
-The files are located in the external storage and can be easily imported into a spreadsheet.
+This is an Android app to measure object persistence performance of
+- [ObjectBox](/app/src/main/java/io/objectbox/performanceapp/objectbox)
+- [Realm](/app/src/main/java/io/objectbox/performanceapp/realm)
+- [SQLite using Room](/app/src/main/java/io/objectbox/performanceapp/room)
+- [SQLite using greenDAO](/app/src/main/java/io/objectbox/performanceapp/greendao) (deprecated)
 
-How to get good results
------------------------
-* Tests perform differently when multiple products are selected: 
-    Thus, for more representable results, you should only run a single product at a time.
-* Go into air plane mode to avoid background apps doing sync over the network 
-* Screen must be on at all times (plug device in)
-* Beware of lazy loaded properties (e.g. live objects on Realm):
-    loading objects seems very fast because no property data is actually loaded.
-    Thus it makes more sense to also access properties (at least once) and look add up values for load+access.
-* Also consider general notes for [benchmarking on Android](http://greenrobot.org/android/benchmarking-on-android/)
+Results are printed on the UI and saved as tab-separated files (`.tvs`) that can be easily imported
+into a spreadsheet. The files are located on external storage.
+
+<img src="android-perf-screenshot.png" height="540"/>
+
+## How to get good results
+
+* Tests perform differently when multiple databases are selected: 
+    For comparable results, run only a single database at a time.
+* Put the test device into air plane mode to avoid background apps doing sync over the network. 
+* Screen must be on at all times (e.g. plug the device in).
+* Beware of lazy loaded data (e.g. properties on live objects of Realm):
+    loading objects may seem very fast because no data is actually loaded.
+    For better comparison it may be necessary to access data (at least once) and combine load and access time to get actual read time.
+* We also have written some general notes on [benchmarking on Android](https://greenrobot.org/android/benchmarking-on-android/).

app/build.gradle.kts

@@ -0,0 +1,64 @@
+plugins {
+    id("com.android.application")
+    id("io.objectbox")
+    id("realm-android")
+}
+
+android {
+    namespace = "io.objectbox.performanceapp"
+    compileSdk = 34 // Android 14
+
+    buildFeatures {
+        viewBinding = true
+    }
+
+    compileOptions {
+        sourceCompatibility = JavaVersion.VERSION_1_8
+        targetCompatibility = JavaVersion.VERSION_1_8
+    }
+
+    defaultConfig {
+        applicationId = "io.objectbox.performanceapp"
+        minSdk = 19 // Android 4.4
+        targetSdk = 34 // Android 14
+        versionCode = 1
+        versionName = "1.0"
+
+        javaCompileOptions {
+            annotationProcessorOptions {
+                arguments(mapOf("room.schemaLocation" to "$projectDir/schemas"))
+            }
+        }
+    }
+
+    buildTypes {
+        getByName("release") {
+            isMinifyEnabled = false
+            proguardFiles(getDefaultProguardFile("proguard-android.txt"), "proguard-rules.pro")
+            signingConfig = signingConfigs.getByName("debug")
+        }
+        create("releaseDebugCert") {
+            initWith(getByName("release"))
+            // Just to use without checkjni
+            signingConfig = signingConfigs.getByName("debug")
+        }
+        create("debugJniNoDebug") {
+            initWith(getByName("debug"))
+            // Just to use without checkjni
+            isJniDebuggable = false
+        }
+    }
+}
+
+// Print deprecation warnings like Kotlin
+tasks.withType(JavaCompile::class).configureEach {
+    options.isDeprecation = true
+}
+
+dependencies {
+    implementation("androidx.preference:preference:1.2.1")
+    implementation("androidx.room:room-runtime:2.6.1")
+    annotationProcessor("androidx.room:room-compiler:2.6.1")
+    implementation("org.greenrobot:greendao:3.3.0")
+    implementation("org.greenrobot:essentials:3.1.0")
+}

app/src/main/AndroidManifest.xml

@@ -1,6 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<manifest package="io.objectbox.performanceapp"
-          xmlns:android="http://schemas.android.com/apk/res/android">
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
 
     <!-- Note: We do not request the permission on Android 6+ - user has to add it manually using App Info-->
     <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
@@ -13,6 +12,7 @@
         android:theme="@style/AppTheme">
         <activity
             android:name=".MainActivity"
+            android:exported="true"
             android:windowSoftInputMode="stateHidden">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN"/>

app/src/main/java/io/objectbox/performanceapp/MainActivity.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2017 ObjectBox Ltd. All rights reserved.
+ * Copyright 2017-2024 ObjectBox Ltd. All rights reserved.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -20,7 +20,6 @@
 import android.content.Context;
 import android.content.SharedPreferences;
 import android.os.Bundle;
-import android.preference.PreferenceManager;
 import android.view.View;
 import android.view.inputmethod.InputMethodManager;
 import android.widget.ArrayAdapter;
@@ -29,6 +28,7 @@
 import java.util.ArrayList;
 import java.util.List;
 
+import androidx.preference.PreferenceManager;
 import io.objectbox.performanceapp.PerfTestRunner.Callback;
 import io.objectbox.performanceapp.databinding.ActivityMainBinding;
 import io.objectbox.performanceapp.greendao.GreendaoPerfTest;

app/src/main/java/io/objectbox/performanceapp/objectbox/ObjectBoxPerfTest.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2017 ObjectBox Ltd. All rights reserved.
+ * Copyright 2017-2024 ObjectBox Ltd. All rights reserved.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -250,15 +250,17 @@ private void runQueryByString() {
         startBenchmark("query");
 
         long entitiesFound = 0;
-        Query<SimpleEntity> query = box.query()
-                .equal(SimpleEntity_.simpleString, "", CASE_SENSITIVE)
-                .parameterAlias("string")
-                .build();
-        for (int i = 0; i < stringsToLookup.length; i++) {
-            query.setParameter("string", stringsToLookup[i]);
-            List<SimpleEntity> result = query.find();
-            accessAll(result);
-            entitiesFound += result.size();
+        try (Query<SimpleEntity> query = box.query(
+                SimpleEntity_.simpleString
+                        .equal("", CASE_SENSITIVE)
+                        .alias("string")
+        ).build()) {
+            for (int i = 0; i < stringsToLookup.length; i++) {
+                query.setParameter("string", stringsToLookup[i]);
+                List<SimpleEntity> result = query.find();
+                accessAll(result);
+                entitiesFound += result.size();
+            }
         }
         stopBenchmark();
         log("Entities found: " + entitiesFound);
@@ -277,15 +279,17 @@ private void runQueryByInteger() {
 
         startBenchmark("query");
         long entitiesFound = 0;
-        Query<SimpleEntity> query = box.query()
-                .equal(SimpleEntity_.simpleInt, 0)
-                .parameterAlias("int")
-                .build();
-        for (int i = 0; i < numberEntities; i++) {
-            query.setParameter("int", valuesToLookup[i]);
-            List<SimpleEntity> result = query.find();
-            accessAll(result);
-            entitiesFound += result.size();
+        try (Query<SimpleEntity> query = box.query(
+                SimpleEntity_.simpleInt
+                        .equal(0)
+                        .alias("int")
+        ).build()) {
+            for (int i = 0; i < numberEntities; i++) {
+                query.setParameter("int", valuesToLookup[i]);
+                List<SimpleEntity> result = query.find();
+                accessAll(result);
+                entitiesFound += result.size();
+            }
         }
         stopBenchmark();
         log("Entities found: " + entitiesFound);
@@ -321,15 +325,17 @@ private void runQueryByStringIndexed() {
 
         startBenchmark("query");
         long entitiesFound = 0;
-        Query<SimpleEntityIndexed> query = boxIndexed.query()
-                .equal(SimpleEntityIndexed_.simpleString, "", CASE_SENSITIVE)
-                .parameterAlias("string")
-                .build();
-        for (int i = 0; i < stringsToLookup.length; i++) {
-            query.setParameter("string", stringsToLookup[i]);
-            List<SimpleEntityIndexed> result = query.find();
-            accessAllIndexed(result);
-            entitiesFound += result.size();
+        try (Query<SimpleEntityIndexed> query = boxIndexed.query(
+                SimpleEntityIndexed_.simpleString
+                        .equal("", CASE_SENSITIVE)
+                        .alias("string")
+        ).build()) {
+            for (int i = 0; i < stringsToLookup.length; i++) {
+                query.setParameter("string", stringsToLookup[i]);
+                List<SimpleEntityIndexed> result = query.find();
+                accessAllIndexed(result);
+                entitiesFound += result.size();
+            }
         }
         stopBenchmark();
         log("Entities found: " + entitiesFound);
@@ -345,15 +351,17 @@ private void runQueryByIntegerIndexed() {
 
         startBenchmark("query");
         long entitiesFound = 0;
-        Query<SimpleEntityIndexed> query = boxIndexed.query()
-                .equal(SimpleEntityIndexed_.simpleInt, 0)
-                .parameterAlias("int")
-                .build();
-        for (int i = 0; i < numberEntities; i++) {
-            query.setParameter("int", valuesToLookup[i]);
-            List<SimpleEntityIndexed> result = query.find();
-            accessAllIndexed(result);
-            entitiesFound += result.size();
+        try (Query<SimpleEntityIndexed> query = boxIndexed.query(
+                SimpleEntityIndexed_.simpleInt
+                        .equal(0)
+                        .alias("int")
+        ).build()) {
+            for (int i = 0; i < numberEntities; i++) {
+                query.setParameter("int", valuesToLookup[i]);
+                List<SimpleEntityIndexed> result = query.find();
+                accessAllIndexed(result);
+                entitiesFound += result.size();
+            }
         }
         stopBenchmark();
         log("Entities found: " + entitiesFound);