shouriken opened a new issue, #64:
URL: https://github.com/apache/arrow-java/issues/64
### Describe the usage question you have. Please include as many useful
details as possible.
I use this static method to write a parquet file into fs, I give empty
partition array, so it will be in a file; and i give the `baseNameTemplate` arg
is "test.parquet" to specify the filename, but it leads to an error:
`basename_template did not contain '{i}'`.
```java
public static void write(BufferAllocator allocator, ArrowReader reader,
FileFormat format, String uri,
String[] partitionColumns, int maxPartitions,
String baseNameTemplate) {
try (final ArrowArrayStream stream =
ArrowArrayStream.allocateNew(allocator)) {
Data.exportArrayStream(allocator, reader, stream);
JniWrapper.get().writeFromScannerToFile(stream.memoryAddress(),
format.id(), uri, partitionColumns, maxPartitions,
baseNameTemplate);
}
}
```
read the cpp jni code and cpp dataset's code, the
FileSystemDatasetWriteOptions::basename_template seems not supported to specify
the file name without `{i}`.
```cpp
/// \brief Options for writing a dataset.
struct ARROW_DS_EXPORT FileSystemDatasetWriteOptions {
.
.
.
/// Template string used to generate fragment basenames.
/// {i} will be replaced by an auto incremented integer.
std::string basename_template;
.
.
.
}
```
If there is any method to specify the filename when none partition?
### Component(s)
Java
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