org.apache.iceberg.arrow.vectorized

Class ColumnarBatch

java.lang.Object

org.apache.iceberg.arrow.vectorized.ColumnarBatch

All Implemented Interfaces:

java.lang.AutoCloseable

public class ColumnarBatch
extends java.lang.Object
implements java.lang.AutoCloseable

This class is inspired by Spark's ColumnarBatch. This class wraps a columnar batch in the result set of an Iceberg table query.

Method Summary

Modifier and Type	Method and Description
void	close() Called to close all the columns in this batch.
ColumnVector	column(int ordinal) Returns the column at `ordinal`.
org.apache.arrow.vector.VectorSchemaRoot	createVectorSchemaRootFromVectors() Create a new instance of VectorSchemaRoot from the arrow vectors stored in this arrow batch.
int	numCols() Returns the number of columns that make up this batch.
int	numRows() Returns the number of rows for read, including filtered rows.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

createVectorSchemaRootFromVectors

public org.apache.arrow.vector.VectorSchemaRoot createVectorSchemaRootFromVectors()

Create a new instance of VectorSchemaRoot from the arrow vectors stored in this arrow batch. The arrow vectors are owned by the reader.

close

public void close()

Called to close all the columns in this batch. It is not valid to access the data after calling this. This must be called at the end to clean up memory allocations.

Specified by:

close in interface java.lang.AutoCloseable

numCols

public int numCols()

Returns the number of columns that make up this batch.

numRows

public int numRows()

Returns the number of rows for read, including filtered rows.

column

public ColumnVector column(int ordinal)

Returns the column at `ordinal`.