C＃相当于Java类 <E> 和E扩展枚举 <E>

Question

I am trying to translate one Java library into C# code, and since I am new to C# (and never worked with generics until recently) I am strugling a bit...

As for Java generics, I am trying (and more or less understanding) its way of operation. Although I have checked this Why not extending from Enum<E extends Enum<E>> and this How to use Class<T> in Java? , I am not able to really understand whats going on in this piece of Java code, and, as a result, I am not able to think about an equivalent C# code.

public abstract class TraciObject<E extends Enum<E>> {
    private final String id;    
    private final EnumMap<E, ReadObjectVarQuery<?>> readQueries;    
    protected TraciObject(String id, Class<E> enumClass) {
        this.id = id;
        readQueries = new EnumMap<E, ReadObjectVarQuery<?>>(enumClass);
    }
    ...
}

My approach in C# so far is the following:

public abstract class TraciObject<E> where E : Enum<E> { //Non-generic type Enum cannot be used with type arguments
private readonly string id;

private readonly Dictionary<E, ReadObjectVarQuery<E>> readQueries;

protected TraciObject(String id, E enumClass)
{
    this.id = id;
    readQueries = new Dictionary<E, ReadObjectVarQuery<E>>(enumClass); //cannot convert from E  to 'System.Collections.Generic.IEqualityComparer'
}

When I have readQueries = new Dictionary<E, ReadObjectVarQuery<E>>(enumClass); I was trying to get the corresponding to Java's EnumMap(Class<K> keyType) , but checking the documentation about Dictionary https://msdn.microsoft.com/es-es/library/xfhwa508(v=vs.110).aspx I am not sure this is possible

Answer 1

From Java Doc : EnumMap(Class<K> keyType) :

Creates an empty enum map with the specified key type.

It seems the Dictionary constructor you are looking for is the parameterless one.

From MSDN :

Dictionary<TKey, TValue>() : Initializes a new instance of the Dictionary class that is empty, has the default initial capacity, and uses the default equality comparer for the key type.