org.apache.flink.table.runtime.util

Interface ResettableRowBuffer

All Superinterfaces:

AutoCloseable, Closeable

All Known Implementing Classes:

ResettableExternalBuffer

public interface ResettableRowBuffer
extends Closeable

Resettable buffer that add RowData and return BinaryRowData iterator.

Instructions: 1.reset() 2.multi add(RowData) 3.complete() 4.multi newIterator() repeat the above steps or Closeable.close().

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static interface	ResettableRowBuffer.ResettableIterator Row iterator that can be reset.

Method Summary

Modifier and Type	Method and Description
void	add(RowData row) Appends the specified row to the end of this buffer.
void	complete() Finally, complete add.
ResettableRowBuffer.ResettableIterator	newIterator() Get a new iterator starting from first row.
ResettableRowBuffer.ResettableIterator	newIterator(int beginRow) Get a new iterator starting from the `beginRow`-th row.
void	reset() Re-initialize the buffer state.

Methods inherited from interface java.io.Closeable

close

Method Detail

reset

void reset()

Re-initialize the buffer state.

add

void add(RowData row)
  throws IOException

Appends the specified row to the end of this buffer.

Throws:

IOException

complete

void complete()

Finally, complete add.

newIterator

ResettableRowBuffer.ResettableIterator newIterator()

Get a new iterator starting from first row.

newIterator

ResettableRowBuffer.ResettableIterator newIterator(int beginRow)

Get a new iterator starting from the `beginRow`-th row. `beginRow` is 0-indexed.