1 /* 2 * Copyright (C) 2016 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 package androidx.room.processor 17 18 import androidx.room.Delete 19 import androidx.room.ext.typeName 20 import androidx.room.vo.DeletionMethod 21 import com.squareup.javapoet.TypeName 22 import javax.lang.model.element.ExecutableElement 23 import javax.lang.model.type.DeclaredType 24 25 class DeletionMethodProcessor(baseContext: Context, 26 val containing: DeclaredType, 27 val executableElement: ExecutableElement) { 28 val context = baseContext.fork(executableElement) 29 30 fun process(): DeletionMethod { 31 val delegate = ShortcutMethodProcessor(context, containing, executableElement) 32 delegate.extractAnnotation(Delete::class, ProcessorErrors.MISSING_DELETE_ANNOTATION) 33 34 val returnTypeName = delegate.extractReturnType().typeName() 35 context.checker.check( 36 returnTypeName == TypeName.VOID || returnTypeName == TypeName.INT, 37 executableElement, 38 ProcessorErrors.DELETION_METHODS_MUST_RETURN_VOID_OR_INT 39 ) 40 41 val (entities, params) = delegate.extractParams( 42 missingParamError = ProcessorErrors 43 .DELETION_MISSING_PARAMS 44 ) 45 46 return DeletionMethod( 47 element = delegate.executableElement, 48 name = delegate.executableElement.simpleName.toString(), 49 entities = entities, 50 returnCount = returnTypeName == TypeName.INT, 51 parameters = params 52 ) 53 } 54 } 55
