Package org.apache.iceberg.parquet

Class ParquetValueWriters.RepeatedKeyValueWriter<M,K,V>

java.lang.Object

org.apache.iceberg.parquet.ParquetValueWriters.RepeatedKeyValueWriter<M,K,V>

All Implemented Interfaces:

ParquetValueWriter<M>

Enclosing class:

ParquetValueWriters

public abstract static class ParquetValueWriters.RepeatedKeyValueWriter<M,K,V>
extends Object
implements ParquetValueWriter<M>

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	RepeatedKeyValueWriter(int definitionLevel, int repetitionLevel, ParquetValueWriter<K> keyWriter, ParquetValueWriter<V> valueWriter)

Method Summary

Modifier and Type	Method	Description
List<TripleWriter<?>>	columns()
Stream<FieldMetrics<?>>	metrics()	Returns a stream of FieldMetrics that this ParquetValueWriter keeps track of.
protected abstract Iterator<Map.Entry<K,V>>	pairs(M value)	Returns an iterator over the key-value pairs of a value.
void	setColumnStore(org.apache.parquet.column.ColumnWriteStore columnStore)
void	write(int parentRepetition, M value)

Methods inherited from class java.lang.Object

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

Constructor Details

RepeatedKeyValueWriter

protected RepeatedKeyValueWriter(int definitionLevel,
 int repetitionLevel,
 ParquetValueWriter<K> keyWriter,
 ParquetValueWriter<V> valueWriter)

Method Details

write

public void write(int parentRepetition,
 M value)

Specified by:

write in interface ParquetValueWriter<M>

columns

public List<TripleWriter<?>> columns()

Specified by:

columns in interface ParquetValueWriter<M>

setColumnStore

public void setColumnStore(org.apache.parquet.column.ColumnWriteStore columnStore)

Specified by:

setColumnStore in interface ParquetValueWriter<M>

pairs

protected abstract Iterator<Map.Entry<K,V>> pairs(M value)

Returns an iterator over the key-value pairs of a value.

The iterator is fully consumed before write returns and is never retained, so implementations may return a reused iterator instance. The entries it produces are passed to the key and value writers before the next entry is requested, so implementations may also return a reused entry instance.

Parameters:

value - a value to write

Returns:

an iterator over the value's key-value pairs

metrics

public Stream<FieldMetrics<?>> metrics()

Description copied from interface: ParquetValueWriter

Returns a stream of FieldMetrics that this ParquetValueWriter keeps track of.

Specified by:

metrics in interface ParquetValueWriter<M>