slinkydeveloper commented on a change in pull request #17768: URL: https://github.com/apache/flink/pull/17768#discussion_r749339409
########## File path: flink-table/flink-table-common/src/main/java/org/apache/flink/table/connector/format/ProjectableDecodingFormat.java ########## @@ -0,0 +1,61 @@ +/* + * 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.connector.format; + +import org.apache.flink.annotation.PublicEvolving; +import org.apache.flink.table.connector.source.DynamicTableSource; +import org.apache.flink.table.types.DataType; +import org.apache.flink.table.types.projection.Projection; + +/** + * For more details on usage and differences between {@link DecodingFormat} and {@link Review comment: Check now ########## File path: flink-table/flink-table-common/src/main/java/org/apache/flink/table/connector/format/ProjectableDecodingFormat.java ########## @@ -0,0 +1,61 @@ +/* + * 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.connector.format; + +import org.apache.flink.annotation.PublicEvolving; +import org.apache.flink.table.connector.source.DynamicTableSource; +import org.apache.flink.table.types.DataType; +import org.apache.flink.table.types.projection.Projection; + +/** + * For more details on usage and differences between {@link DecodingFormat} and {@link + * ProjectableDecodingFormat}, check the documentation of {@link DecodingFormat}. + */ +@PublicEvolving +public interface ProjectableDecodingFormat<I> extends DecodingFormat<I> { + + /** Returns whether this format supports nested projection. */ + default boolean supportsNestedProjection() { + return false; + } + + /** + * Creates runtime decoder implementation that is configured to produce data of type {@code + * DataType.projectFields(physicalDataType, projections)}. For more details on the usage, check + * {@link DecodingFormat} documentation. + * + * @param context the context provides several utilities required to instantiate the runtime + * decoder implementation of the format + * @param physicalDataType For more details check {@link DecodingFormat} + * @param projections the projections array. The projections can be nested only if {@link Review comment: Check now -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
