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From StephanEwen <...@git.apache.org>
Subject [GitHub] flink pull request: [FLINK-3002] Add Either type to the Java API
Date Wed, 18 Nov 2015 13:38:30 GMT
Github user StephanEwen commented on a diff in the pull request:

    https://github.com/apache/flink/pull/1371#discussion_r45199091
  
    --- Diff: flink-java/src/main/java/org/apache/flink/api/java/typeutils/EitherTypeInfo.java
---
    @@ -0,0 +1,115 @@
    +/*
    + * 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.java.typeutils;
    +
    +import org.apache.flink.api.common.ExecutionConfig;
    +import org.apache.flink.api.common.typeinfo.TypeInformation;
    +import org.apache.flink.api.common.typeutils.TypeSerializer;
    +import org.apache.flink.api.java.typeutils.runtime.EitherSerializer;
    +
    +/**
    + * A {@link TypeInformation} for the {@link Either} type of the Java API.
    + *
    + * @param <L> the Left value type
    + * @param <R> the Right value type
    + */
    +public class EitherTypeInfo<L, R> extends TypeInformation<Either<L, R>>
{
    +
    +	private static final long serialVersionUID = 1L;
    +
    +	private final Class<Either<L, R>> typeClass;
    +
    +	private final TypeInformation<L> leftType;
    +
    +	private final TypeInformation<R> rightType;
    +
    +	@SuppressWarnings({ "unchecked", "rawtypes" })
    +	public EitherTypeInfo(Class<Either> typeClass,
    --- End diff --
    
    You can probably drop the parameter "typeClass" and simply adjust the "getTypeClass()"
method below (see below).


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