dawidwys commented on a change in pull request #6711: [FLINK-9377] [core, state backends] Remove serializers from checkpoints URL: https://github.com/apache/flink/pull/6711#discussion_r223305539
########## File path: flink-core/src/main/java/org/apache/flink/api/common/typeutils/TypeSerializerSchemaCompatibility.java ########## @@ -0,0 +1,138 @@ +/* + * 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.api.common.typeutils; + +import org.apache.flink.annotation.PublicEvolving; +import org.apache.flink.util.Preconditions; + +import javax.annotation.Nullable; + +/** + * A {@code TypeSerializerSchemaCompatibility} represents information about whether or not a {@link TypeSerializer} + * can be safely used to read data written by a previous type serializer. + * + * <p>Typically, the compatibility of the new serializer is resolved by checking it against the snapshotted + * {@link TypeSerializerConfigSnapshot} of the previous serializer. Depending on the type of the + * resolved compatibility result, migration (i.e., reading bytes with the previous serializer and then writing + * it again with the new serializer) may be required before the new serializer can be used. + * + * @param <T> the type of data serialized bythe serializer that was being checked. Review comment: `bythe` -> `by the` ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org With regards, Apache Git Services
