DB init

app/build.gradle

@@ -24,12 +24,13 @@ android {
 
 dependencies {
     implementation fileTree(dir: 'libs', include: ['*.jar'])
-    implementation"org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
+    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
     implementation 'com.android.support:appcompat-v7:28.0.0'
     implementation 'com.android.support.constraint:constraint-layout:1.1.3'
     implementation 'com.github.kittinunf.fuel:fuel:2.1.0'
     implementation 'com.github.kittinunf.fuel:fuel-android:2.1.0'
     implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-android:1.3.0-M2'
+    implementation 'org.jetbrains.exposed:exposed:0.16.1'
 
     testImplementation 'junit:junit:4.12'
     androidTestImplementation 'com.android.support.test:runner:1.0.2'

app/src/main/java/co/zzyzx/sensorlogger/Database.kt

@@ -0,0 +1,20 @@
+package co.zzyzx.sensorlogger
+
+import org.jetbrains.exposed.dao.EntityID
+import org.jetbrains.exposed.dao.IntEntity
+import org.jetbrains.exposed.dao.IntEntityClass
+import org.jetbrains.exposed.dao.IntIdTable
+
+object Records : IntIdTable() {
+    val timestamp = datetime("timestamp")
+    val sensor = varchar("sensor", 20)
+    val data = text("data:")
+}
+
+class Record(id: EntityID<Int>) : IntEntity(id) {
+    companion object : IntEntityClass<Record>(Records)
+
+    var timestamp by Records.timestamp
+    var sensor by Records.sensor
+    var data by Records.data
+}