davisusanibar commented on a change in pull request #136:
URL: https://github.com/apache/arrow-cookbook/pull/136#discussion_r808070947
##########
File path: java/source/io.rst
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@@ -457,18 +504,19 @@ Read - From File
){
// write
writer.start();
- for (int i=0; i<10; i++){
+ for (int i=0; i<2; i++){
// Generate data or modify the root or use a VectorLoader to get
fresh data from somewhere else
writer.writeBatch();
}
// read
try (FileInputStream fileInputStreamForStream = new
FileInputStream(file);
ArrowStreamReader reader = new
ArrowStreamReader(fileInputStreamForStream, rootAllocator)){
- // read the batch
- reader.loadNextBatch();
- VectorSchemaRoot vectorSchemaRootRecover =
reader.getVectorSchemaRoot();
- System.out.print(vectorSchemaRootRecover.contentToTSVString());
+ while(reader.loadNextBatch()){
+ // read the batch (on the next example you could see how to
use a VectorLoader to get fresh data)
Review comment:
Deleted and added a separate recipe to demonstrate
VectorLoader/VectorUnloader.
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