我正在尝试将java中的数据写入apache parquet。到目前为止，我所做的是通过这里的示例使用apache箭头：https://arrow.apache.org/cookbook/java/schema.html#creating-fields并创建一个箭头格式的数据集。

问题是，之后怎么写进parque呢？还有，是不是需要用apache箭头把数据输出成parque文件？还是直接用apache parque把数据序列化，然后输出成parque文件？

我做了什么：

try (BufferAllocator allocator = new RootAllocator()) {
    Field name = new Field("name", FieldType.nullable(new ArrowType.Utf8()), null);
    Field age = new Field("age", FieldType.nullable(new ArrowType.Int(32, true)), null);
    Schema schemaPerson = new Schema(asList(name, age));
    try(
        VectorSchemaRoot vectorSchemaRoot = VectorSchemaRoot.create(schemaPerson, allocator)
    ){
        VarCharVector nameVector = (VarCharVector) vectorSchemaRoot.getVector("name");
        nameVector.allocateNew(3);
        nameVector.set(0, "David".getBytes());
        nameVector.set(1, "Gladis".getBytes());
        nameVector.set(2, "Juan".getBytes());
        IntVector ageVector = (IntVector) vectorSchemaRoot.getVector("age");
        ageVector.allocateNew(3);
        ageVector.set(0, 10);
        ageVector.set(1, 20);
        ageVector.set(2, 30);
        vectorSchemaRoot.setRowCount(3);
        File file = new File("randon_access_to_file.arrow");
        try (
            FileOutputStream fileOutputStream = new FileOutputStream(file);
            ArrowFileWriter writer = new ArrowFileWriter(vectorSchemaRoot, null, fileOutputStream.getChannel())
        ) {
            writer.start();
            writer.writeBatch();
            writer.end();
            System.out.println("Record batches written: " + writer.getRecordBlocks().size() + ". Number of rows written: " + vectorSchemaRoot.getRowCount());
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

但这输出为箭头文件。不是拼花。有什么想法可以将其输出到拼花文件吗？我是否需要箭头来生成拼花文件-或者我可以直接使用拼花吗？