convert SchemaItem to dataclass (unfrozen by default)

Author: saichandrapandraju

src/service/payloads/service/schema_item.py

@@ -1,12 +1,13 @@
 from src.service.payloads.values.data_type import DataType
+from dataclasses import dataclass
 
-
+@dataclass
 class SchemaItem:
-    def __init__(self, type: DataType, name: str, column_index: int) -> None:
-        self.type: DataType = type
-        self.name: str = name
-        self.column_index: int = column_index
+    type: DataType
+    name: str
+    column_index: int
 
+    # Keeping these methods for backward compatibility
     def get_type(self) -> DataType:
         return self.type
 
@@ -23,19 +24,4 @@ def get_column_index(self) -> int:
         return self.column_index
 
     def set_column_index(self, column_index: int) -> None:
-        self.column_index = column_index
-
-    def __eq__(self, other: object) -> bool:
-        if not isinstance(other, SchemaItem):
-            return False
-        return (
-            self.type == other.type
-            and self.name == other.name
-            and self.column_index == other.column_index
-        )
-
-    def __hash__(self) -> int:
-        return hash((self.type, self.name, self.column_index))
-
-    def __str__(self) -> str:
-        return f"SchemaItem(type={self.type}, name='{self.name}', column_index={self.column_index})"
+        self.column_index = column_index