org.bytedeco.parquet

Class RowGroupWriter

java.lang.Object

org.bytedeco.javacpp.Pointer

org.bytedeco.parquet.RowGroupWriter

All Implemented Interfaces:

AutoCloseable

@Namespace(value="parquet")
 @NoOffset
 @Properties(inherit=parquet.class)
public class RowGroupWriter
extends Pointer

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	RowGroupWriter.Contents

Nested classes/interfaces inherited from class org.bytedeco.javacpp.Pointer

Pointer.CustomDeallocator, Pointer.Deallocator, Pointer.NativeDeallocator, Pointer.ReferenceCounter

Field Summary

Fields inherited from class org.bytedeco.javacpp.Pointer

address, capacity, limit, position

Constructor Summary

Constructors

Constructor and Description
RowGroupWriter(Pointer p) Pointer cast constructor.
RowGroupWriter(RowGroupWriter.Contents contents)

Method Summary

Modifier and Type	Method and Description
void	Close()
ColumnWriter	column(int i) Construct a ColumnWriter for the indicated row group column.
int	current_column() Index of currently written column.
ColumnWriter	NextColumn() Construct a ColumnWriter for the indicated row group-relative column.
int	num_columns()
long	num_rows() Number of rows that shall be written as part of this RowGroup.
long	total_bytes_written()
long	total_compressed_bytes()

Methods inherited from class org.bytedeco.javacpp.Pointer

address, asBuffer, asByteBuffer, availablePhysicalBytes, calloc, capacity, capacity, close, deallocate, deallocate, deallocateReferences, deallocator, deallocator, equals, fill, formatBytes, free, getDirectBufferAddress, getPointer, getPointer, getPointer, getPointer, hashCode, interruptDeallocatorThread, isNull, isNull, limit, limit, malloc, maxBytes, maxPhysicalBytes, memchr, memcmp, memcpy, memmove, memset, offsetAddress, offsetof, offsetof, parseBytes, physicalBytes, physicalBytesInaccurate, position, position, put, realloc, referenceCount, releaseReference, retainReference, setNull, sizeof, sizeof, toString, totalBytes, totalCount, totalPhysicalBytes, withDeallocator, zero

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

RowGroupWriter

public RowGroupWriter(Pointer p)

Pointer cast constructor. Invokes Pointer(Pointer).

RowGroupWriter

public RowGroupWriter(@UniquePtr
                      RowGroupWriter.Contents contents)

Method Detail

NextColumn

public ColumnWriter NextColumn()

Construct a ColumnWriter for the indicated row group-relative column. To be used only with ParquetFileWriter::AppendRowGroup Ownership is solely within the RowGroupWriter. The ColumnWriter is only valid until the next call to NextColumn or Close. As the contents are directly written to the sink, once a new column is started, the contents of the previous one cannot be modified anymore.

current_column

public int current_column()

Index of currently written column. Equal to -1 if NextColumn() has not been called yet.

Close

public void Close()

num_columns

public int num_columns()

column

public ColumnWriter column(int i)

Construct a ColumnWriter for the indicated row group column. To be used only with ParquetFileWriter::AppendBufferedRowGroup Ownership is solely within the RowGroupWriter. The ColumnWriter is valid until Close. The contents are buffered in memory and written to sink on Close

num_rows

@Cast(value="int64_t")
public long num_rows()

Number of rows that shall be written as part of this RowGroup.

total_bytes_written

@Cast(value="int64_t")
public long total_bytes_written()

total_compressed_bytes

@Cast(value="int64_t")
public long total_compressed_bytes()