danepitkin commented on code in PR #327:
URL: https://github.com/apache/arrow-cookbook/pull/327#discussion_r1323188292
##########
java/source/python_java.rst:
##########
@@ -0,0 +1,201 @@
+.. _arrow-python-java:
+
+========================
+PyArrow Java Integration
+========================
+
+The PyArrow library offers a powerful API for Python that can be integrated
with Java applications.
+This document provides a guide on how to enable seamless data exchange between
Python and Java components using PyArrow.
+
+.. contents::
+
+Dictionary Data Roundtrip
+=========================
+
+ This section demonstrates a data roundtrip, where a dictionary array is
created in Python, accessed and updated in Java,
+ and finally re-accessed and validated in Python for data consistency.
+
+
+Python Component:
+-----------------
+
+ The Python code uses jpype to start the JVM and make the Java class
MapValuesConsumer available to Python.
+ Data is generated in PyArrow and exported through C Data to Java.
Review Comment:
```suggestion
Data is generated in PyArrow and exported through the C Data Interface
to Java.
```
##########
java/source/index.rst:
##########
@@ -43,6 +43,7 @@ This cookbook is tested with Apache Arrow |version|.
data
avro
jdbc
+ python_java
Review Comment:
Would "c data interface" potentially be a better name? The section below
uses pyarrow/jpype as a python example, but in the future we could also add
other language interfaces.
##########
java/source/python_java.rst:
##########
@@ -0,0 +1,201 @@
+.. _arrow-python-java:
+
+========================
+PyArrow Java Integration
+========================
+
+The PyArrow library offers a powerful API for Python that can be integrated
with Java applications.
+This document provides a guide on how to enable seamless data exchange between
Python and Java components using PyArrow.
+
+.. contents::
+
+Dictionary Data Roundtrip
+=========================
+
+ This section demonstrates a data roundtrip, where a dictionary array is
created in Python, accessed and updated in Java,
+ and finally re-accessed and validated in Python for data consistency.
+
+
+Python Component:
+-----------------
+
+ The Python code uses jpype to start the JVM and make the Java class
MapValuesConsumer available to Python.
+ Data is generated in PyArrow and exported through C Data to Java.
+
+.. code-block:: python
+
+ import jpype
+ import jpype.imports
+ from jpype.types import *
+ import pyarrow as pa
+ from pyarrow.cffi import ffi as arrow_c
+
+ # Init the JVM and make MapValuesConsumer class available to Python.
+ jpype.startJVM(classpath=[ "../target/*"])
+ java_c_package = jpype.JPackage("org").apache.arrow.c
+ MapValuesConsumer = JClass('MapValuesConsumer')
+ CDataDictionaryProvider =
JClass('org.apache.arrow.c.CDataDictionaryProvider')
+
+ # Starting from Python and generating data
+
+ # Create a Python DictionaryArray
+
Review Comment:
```suggestion
```
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