[jira] [Created] (FLINK-12031) the registerFactory method of TypeExtractor Should not be private

[Shang Yuanchun (Jira)]

frank wang created FLINK-12031:
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             Summary: the registerFactory method of TypeExtractor  Should not be private
                 Key: FLINK-12031
                 URL: https://issues.apache.org/jira/browse/FLINK-12031
             Project: Flink
          Issue Type: Bug
            Reporter: frank wang


https://github.com/apache/flink/blob/master/flink-core/src/main/java/org/apache/flink/api/java/typeutils/TypeExtractor.java

/**
 * Registers a type information factory globally for a certain type. Every following type extraction
 * operation will use the provided factory for this type. The factory will have highest precedence
 * for this type. In a hierarchy of types the registered factory has higher precedence than annotations
 * at the same level but lower precedence than factories defined down the hierarchy.
 *
 * @param t type for which a new factory is registered
 * @param factory type information factory that will produce \{@link TypeInformation}
 */
private static void registerFactory(Type t, Class<? extends TypeInfoFactory> factory) {
 Preconditions.checkNotNull(t, "Type parameter must not be null.");
 Preconditions.checkNotNull(factory, "Factory parameter must not be null.");

 if (!TypeInfoFactory.class.isAssignableFrom(factory)) {
 throw new IllegalArgumentException("Class is not a TypeInfoFactory.");
 }
 if (registeredTypeInfoFactories.containsKey(t)) {
 throw new InvalidTypesException("A TypeInfoFactory for type '" + t + "' is already registered.");
 }
 registeredTypeInfoFactories.put(t, factory);
}



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