org.apache.iceberg.io

Interface EqualityDeltaWriter<T>

Type Parameters:

T - the row type

All Superinterfaces:

java.lang.AutoCloseable, java.io.Closeable

public interface EqualityDeltaWriter<T>
extends java.io.Closeable

A writer capable of writing data and equality deletes that may belong to different specs and partitions.

Method Summary

Modifier and Type	Method and Description
void	delete(T row, PartitionSpec spec, StructLike partition) Deletes a row from the provided spec/partition.
void	deleteKey(T key, PartitionSpec spec, StructLike partition) Deletes a key from the provided spec/partition.
void	insert(T row, PartitionSpec spec, StructLike partition) Inserts a row to the provided spec/partition.
WriteResult	result() Returns a result that contains information about written DataFiles or DeleteFiles.

Methods inherited from interface java.io.Closeable

close

Method Detail

insert

void insert(T row,
            PartitionSpec spec,
            StructLike partition)

Inserts a row to the provided spec/partition.

Parameters:

row - a data record

spec - a partition spec

partition - a partition or null if the spec is unpartitioned

delete

void delete(T row,
            PartitionSpec spec,
            StructLike partition)

Deletes a row from the provided spec/partition.

This method assumes the delete record has the same schema as the rows that will be inserted.

Parameters:

row - a delete record

spec - a partition spec

partition - a partition or null if the spec is unpartitioned

deleteKey

void deleteKey(T key,
               PartitionSpec spec,
               StructLike partition)

Deletes a key from the provided spec/partition.

This method assumes the delete key contains values only for equality fields.

Parameters:

key - a delete key

spec - a partition spec

partition - a partition or null if the spec is unpartitioned

result

WriteResult result()

Returns a result that contains information about written DataFiles or DeleteFiles. The result is valid only after the writer is closed.

Returns:

the writer result