one.microstream.storage.types

Interface StorageDataFileItemIterator.BufferProvider

All Known Implementing Classes:

StorageDataConverterTypeBinaryToCsv.UTF8, StorageDataFileItemIterator.BufferProvider.ConstantSizedBufferProvider

Enclosing interface:

StorageDataFileItemIterator

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
public static interface StorageDataFileItemIterator.BufferProvider

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static class	StorageDataFileItemIterator.BufferProvider.ConstantSizedBufferProvider Simple implementation that provides always the same ByteBuffer instance with a fixed size.

Method Summary

Modifier and Type	Method and Description
default void	cleanUp()
static StorageDataFileItemIterator.BufferProvider	New()
static StorageDataFileItemIterator.BufferProvider	NewConstantSized(int bufferCapacity)
ByteBuffer	provideBuffer(ByteBuffer byteBuffer, long nextEntityLength) The passed and returned byte buffer instances are guaranteed to be direct bytebuffer.
default ByteBuffer	provideInitialBuffer()

Method Detail

provideInitialBuffer

default ByteBuffer provideInitialBuffer()

provideBuffer

ByteBuffer provideBuffer(ByteBuffer byteBuffer,
                         long nextEntityLength)

The passed and returned byte buffer instances are guaranteed to be direct bytebuffer. This has to be ensured via contract instead of proper typing because of the lack of competent typing in the JDK. All byte buffer instances passed to this method are guaranteed to have been created by it. See provideInitialBuffer().

Parameters:

byteBuffer - the direct byte buffer used so far.

nextEntityLength - the length of the next entity to be read to the buffer.

Returns:

a byte buffer of apriorate size to hold the next entity's data to be processed sufficiently.

cleanUp

default void cleanUp()

New

static StorageDataFileItemIterator.BufferProvider New()

NewConstantSized

static StorageDataFileItemIterator.BufferProvider NewConstantSized(int bufferCapacity)