GuavaListenableFutureDeleteOrUpdateMethodBinderProvider.kt
/*
* 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.solver.shortcut.binderprovider
import androidx.room.ext.GuavaUtilConcurrentTypeNames
import androidx.room.ext.L
import androidx.room.ext.N
import androidx.room.ext.RoomGuavaTypeNames
import androidx.room.ext.T
import androidx.room.ext.typeName
import androidx.room.processor.Context
import androidx.room.processor.ProcessorErrors
import androidx.room.solver.shortcut.binder.CallableDeleteOrUpdateMethodBinder.Companion.createDeleteOrUpdateBinder
import androidx.room.solver.shortcut.binder.DeleteOrUpdateMethodBinder
import javax.lang.model.type.DeclaredType
/**
* Provider for Guava ListenableFuture binders.
*/
class GuavaListenableFutureDeleteOrUpdateMethodBinderProvider(
val context: Context
) : DeleteOrUpdateMethodBinderProvider {
private val hasGuavaRoom by lazy {
context.processingEnv.elementUtils
.getTypeElement(RoomGuavaTypeNames.GUAVA_ROOM.toString()) != null
}
override fun matches(declared: DeclaredType): Boolean =
declared.typeArguments.size == 1 &&
context.processingEnv.typeUtils.erasure(declared).typeName() ==
GuavaUtilConcurrentTypeNames.LISTENABLE_FUTURE
override fun provide(declared: DeclaredType): DeleteOrUpdateMethodBinder {
if (!hasGuavaRoom) {
context.logger.e(ProcessorErrors.MISSING_ROOM_GUAVA_ARTIFACT)
}
val typeArg = declared.typeArguments.first()
val adapter = context.typeAdapterStore.findDeleteOrUpdateAdapter(typeArg)
return createDeleteOrUpdateBinder(typeArg, adapter) { callableImpl, dbField ->
addStatement(
"return $T.createListenableFuture($N, $L, $L)",
RoomGuavaTypeNames.GUAVA_ROOM,
dbField,
"true", // inTransaction
callableImpl
)
}
}
}