eerhardt commented on a change in pull request #7654:
URL: https://github.com/apache/arrow/pull/7654#discussion_r457569636
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File path: csharp/src/Apache.Arrow/Arrays/DelegatingArrayBuilder.cs
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@@ -0,0 +1,96 @@
+//------------------------------------------------------------------------------
+// <copyright file="DelegatingArrayBuilder.cs" company="Jetstone Asset
Management LLP">
+// Copyright (C) Jetstone Asset Management LLP. All rights reserved.
+// Unauthorised copying of this file, via any medium, is strictly prohibited.
+// Proprietary and confidential
+// </copyright>
+// <author>Adam Szmigin</author>
+//------------------------------------------------------------------------------
+
+using System;
+using Apache.Arrow.Memory;
+
+namespace Apache.Arrow
+{
+ /// <summary>
+ /// The <see cref="DelegatingArrayBuilder{T,TArray,TBuilder}"/> class can
be used as the base for any array builder
+ /// that needs to delegate most of its functionality to an inner array
builder.
+ /// </summary>
+ /// <remarks>
+ /// The typical use case is when an array builder may accept a number of
different types as input, but which are
+ /// all internally converted to a single type for assembly into an array.
+ /// </remarks>
+ /// <typeparam name="T">Type of item accepted by inner array
builder.</typeparam>
+ /// <typeparam name="TArray">Type of array produced by this (and the
inner) builder.</typeparam>
+ /// <typeparam name="TBuilder">Type of builder (see Curiously-Recurring
Template Pattern).</typeparam>
+ public abstract class DelegatingArrayBuilder<T, TArray, TBuilder> :
IArrowArrayBuilder<TArray, TBuilder>
Review comment:
> and probably NodaTime.Instant if we use NodaTime for the TZDB
Just a FYI, see this [previous
discussion](https://github.com/apache/arrow/pull/5965#discussion_r356233161)
where we discussed NodaTime. In short, I don't believe the Arrow library should
have a dependency on NodaTime. But instead, the Arrow API should allow for a
consumer to use NodaTime and Arrow together.
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