| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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 org.apache.flink.table.dataview |
| |
| import org.apache.flink.api.common.typeinfo.TypeInformation |
| import org.apache.flink.table.typeutils.{ListViewTypeInfo, MapViewTypeInfo, SortedMapViewTypeInfo} |
| |
| /** |
| * Data view specification. |
| */ |
| trait DataViewSpec { |
| def stateId: String |
| def fieldIndex: Int |
| def dataViewTypeInfo: TypeInformation[_] |
| def getStateDataViewClass(hasNamespace: Boolean): Class[_] |
| def getCreateStateViewCall: String |
| } |
| |
| case class ListViewSpec[T]( |
| stateId: String, |
| fieldIndex: Int, |
| dataViewTypeInfo: ListViewTypeInfo[T]) |
| extends DataViewSpec { |
| |
| override def getStateDataViewClass(hasNamespace: Boolean): Class[_] = { |
| if (hasNamespace) { |
| classOf[SubKeyedStateListView[_, _, _]] |
| } else { |
| classOf[KeyedStateListView[_, _]] |
| } |
| } |
| |
| override def getCreateStateViewCall: String = "getStateListView" |
| } |
| |
| case class MapViewSpec[K, V]( |
| stateId: String, |
| fieldIndex: Int, |
| dataViewTypeInfo: MapViewTypeInfo[K, V]) |
| extends DataViewSpec { |
| |
| override def getStateDataViewClass(hasNamespace: Boolean): Class[_] = { |
| if (hasNamespace) { |
| if (dataViewTypeInfo.nullAware) { |
| classOf[NullAwareSubKeyedStateMapView[_, _, _, _]] |
| } else { |
| classOf[SubKeyedStateMapView[_, _, _, _]] |
| } |
| } else { |
| if (dataViewTypeInfo.nullAware) { |
| classOf[NullAwareKeyedStateMapView[_, _, _]] |
| } else { |
| classOf[KeyedStateMapView[_, _, _]] |
| } |
| } |
| } |
| |
| override def getCreateStateViewCall: String = "getStateMapView" |
| } |
| |
| case class SortedMapViewSpec[K, V]( |
| stateId: String, |
| fieldIndex: Int, |
| dataViewTypeInfo: SortedMapViewTypeInfo[K, V]) |
| extends DataViewSpec { |
| |
| override def getStateDataViewClass(hasNamespace: Boolean): Class[_] = { |
| if (hasNamespace) { |
| // not supported yet |
| ??? |
| } else { |
| classOf[KeyedStateSortedMapView[_, _, _]] |
| } |
| } |
| |
| override def getCreateStateViewCall: String = "getStateSortedMapView" |
| } |