Add RecordBatchFileReader MATLAB class

matlab/src/matlab/+arrow/+io/+ipc/RecordBatchFileReader.m

@@ -0,0 +1,62 @@
+%RECORDBATCHFILEREADER Class for reading record batches from data serialized
+% to the IPC format.
+
+% 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.
+
+classdef RecordBatchFileReader < matlab.mixin.Scalar
+
+    properties (GetAccess=public, SetAccess=private, Hidden)
+        Proxy
+    end
+
+    properties (SetAccess=private, GetAccess=public)
+        Filename (1, 1) string
+    end
+
+    properties(Dependent, SetAccess=private, GetAccess=public)
+        NumRecordBatches
+    end
+
+    methods
+        function obj = RecordBatchFileReader(filename)
+            arguments
+                filename(1, 1) string {mustBeNonzeroLengthText}
+            end
+            obj.Filename = filename;
+            args = struct(Filename=obj.Filename);
+            obj.Proxy = arrow.internal.proxy.create("arrow.io.ipc.proxy.RecordBatchFileReader", args);
+        end
+
+        function rb = read(obj, index)
+            arguments
+                obj(1, 1) arrow.io.ipc.RecordBatchFileReader
+                index(1, 1) int32
+            end
+            args = struct(Index=index);
+            recordBatchproxyID = obj.Proxy.readRecordBatch(args);
+            proxy = libmexclass.proxy.Proxy(Name="arrow.tabular.proxy.RecordBatch", ID=recordBatchproxyID);
+            rb = arrow.tabular.RecordBatch(proxy);
+        end
+
+        function numRecordBatches = get.NumRecordBatches(obj)
+            arguments
+                obj(1, 1) arrow.io.ipc.RecordBatchFileReader
+            end
+            numRecordBatches = obj.Proxy.getNumRecordBatches();
+        end
+    end
+
+end