refactor: Extract validation logic into a separate method in DataframeDisplayConfig

- Added a private method `_validate_positive` to encapsulate the logic for validating positive integer values.
- Updated setters for `max_table_bytes`, `min_table_rows`, `max_cell_length`, and `max_table_rows_in_repr` to use the new validation method, improving code readability and maintainability.

Author: kosiew

python/datafusion/context.py

@@ -111,6 +111,19 @@ def __init__(
             max_table_rows_in_repr=max_table_rows_in_repr,
         )
 
+    def _validate_positive(self, value: int, name: str) -> None:
+        """Validate that the given value is positive.
+
+        Args:
+            value: The value to validate
+            name: The name of the parameter for the error message
+
+        Raises:
+            ValueError: If the value is not positive
+        """
+        if value <= 0:
+            raise ValueError(f"{name} must be greater than 0")
+
     @property
     def max_table_bytes(self) -> int:
         """Get the maximum bytes to display for table presentation."""
@@ -119,8 +132,7 @@ def max_table_bytes(self) -> int:
     @max_table_bytes.setter
     def max_table_bytes(self, value: int) -> None:
         """Set the maximum bytes to display for table presentation."""
-        if value <= 0:
-            raise ValueError("max_table_bytes must be greater than 0")
+        self._validate_positive(value, "max_table_bytes")
         self.config_internal.max_table_bytes = value
 
     @property
@@ -131,8 +143,7 @@ def min_table_rows(self) -> int:
     @min_table_rows.setter
     def min_table_rows(self, value: int) -> None:
         """Set the minimum number of table rows to display."""
-        if value <= 0:
-            raise ValueError("min_table_rows must be greater than 0")
+        self._validate_positive(value, "min_table_rows")
         self.config_internal.min_table_rows = value
 
     @property
@@ -143,8 +154,7 @@ def max_cell_length(self) -> int:
     @max_cell_length.setter
     def max_cell_length(self, value: int) -> None:
         """Set the maximum length of a cell before it gets minimized."""
-        if value <= 0:
-            raise ValueError("max_cell_length must be greater than 0")
+        self._validate_positive(value, "max_cell_length")
         self.config_internal.max_cell_length = value
 
     @property
@@ -155,8 +165,7 @@ def max_table_rows_in_repr(self) -> int:
     @max_table_rows_in_repr.setter
     def max_table_rows_in_repr(self, value: int) -> None:
         """Set the maximum number of rows to display in repr string output."""
-        if value <= 0:
-            raise ValueError("max_table_rows_in_repr must be greater than 0")
+        self._validate_positive(value, "max_table_rows_in_repr")
         self.config_internal.max_table_rows_in_repr = value