From c6851103cac67f6001e8c6720f63e9e1d2496011 Mon Sep 17 00:00:00 2001
From: Raz Luvaton <16746759+rluvaton@users.noreply.github.com>
Date: Tue, 31 Dec 2024 12:34:00 +0000
Subject: [PATCH] feat(arrow-array): add `BinaryArrayType` similar to
 `StringArrayType`

---
 arrow-array/src/array/mod.rs | 31 +++++++++++++++++++++++++++++++
 1 file changed, 31 insertions(+)

diff --git a/arrow-array/src/array/mod.rs b/arrow-array/src/array/mod.rs
index 23b3cb628aaf..0c135a9b68b4 100644
--- a/arrow-array/src/array/mod.rs
+++ b/arrow-array/src/array/mod.rs
@@ -620,6 +620,37 @@ impl<'a> StringArrayType<'a> for &'a StringViewArray {
     }
 }
 
+/// A trait for Arrow Binary Arrays, currently the following types are supported:
+/// - `BinaryArray`
+/// - `LargeBinaryArray`
+/// - `BinaryViewArray`
+/// - `FixedSizeBinaryArray`
+///
+/// This trait helps to abstract over the different types of binary arrays
+/// so that we don't need to duplicate the implementation for each type.
+pub trait BinaryArrayType<'a>: ArrayAccessor<Item = &'a [u8]> + Sized {
+    /// Constructs a new iterator
+    fn iter(&self) -> ArrayIter<Self>;
+}
+
+impl<'a, O: OffsetSizeTrait> BinaryArrayType<'a> for &'a GenericBinaryArray<O> {
+    fn iter(&self) -> ArrayIter<Self> {
+        GenericBinaryArray::<O>::iter(self)
+    }
+}
+
+impl<'a> BinaryArrayType<'a> for &'a BinaryViewArray {
+    fn iter(&self) -> ArrayIter<Self> {
+        BinaryViewArray::iter(self)
+    }
+}
+
+impl<'a> BinaryArrayType<'a> for &'a FixedSizeBinaryArray {
+    fn iter(&self) -> ArrayIter<Self> {
+        FixedSizeBinaryArray::iter(self)
+    }
+}
+
 impl PartialEq for dyn Array + '_ {
     fn eq(&self, other: &Self) -> bool {
         self.to_data().eq(&other.to_data())