ImmutableMapQueryResultAdapter.kt
/*
* Copyright 2021 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.compiler.processing.XType
import androidx.room.ext.L
import androidx.room.ext.T
import androidx.room.solver.CodeGenScope
import com.google.common.collect.ImmutableMap
import com.squareup.javapoet.ClassName
import com.squareup.javapoet.ParameterizedTypeName
class ImmutableMapQueryResultAdapter(
override val keyTypeArg: XType,
override val valueTypeArg: XType,
private val resultAdapter: QueryResultAdapter
) : QueryResultAdapter(resultAdapter.rowAdapters), MultimapQueryResultAdapter {
override fun convert(outVarName: String, cursorVarName: String, scope: CodeGenScope) {
scope.builder().apply {
val mapVarName = scope.getTmpVar("_mapResult")
resultAdapter.convert(mapVarName, cursorVarName, scope)
addStatement(
"final $T $L = $T.copyOf($L)",
ParameterizedTypeName.get(
ClassName.get(ImmutableMap::class.java),
keyTypeArg.typeName,
valueTypeArg.typeName
),
outVarName,
ClassName.get(ImmutableMap::class.java),
mapVarName
)
}
}
}