org.apache.parquet.bytes

Class ConcatenatingByteBufferCollector

java.lang.Object

org.apache.parquet.bytes.BytesInput

org.apache.parquet.bytes.ConcatenatingByteBufferCollector

All Implemented Interfaces:

AutoCloseable

public class ConcatenatingByteBufferCollector
extends BytesInput
implements AutoCloseable

Alternative to ConcatenatingByteArrayCollector but using ByteBuffers allocated by its ByteBufferAllocator.

Constructor Summary

Constructors

Constructor and Description
ConcatenatingByteBufferCollector(ByteBufferAllocator allocator) Constructs a new ConcatenatingByteBufferCollector instance with the specified allocator.

Method Summary

Modifier and Type	Method and Description
void	close()
void	collect(BytesInput bytesInput) Collects the content of the specified input.
String	memUsageString(String prefix)
long	size()
void	writeAllTo(OutputStream out) writes the bytes into a stream
void	writeInto(ByteBuffer buffer) For internal use only.

Methods inherited from class org.apache.parquet.bytes.BytesInput

concat, concat, copy, copy, copy, empty, from, from, from, from, from, from, from, from, fromInt, fromUnsignedVarInt, fromUnsignedVarLong, fromZigZagVarInt, fromZigZagVarLong, toByteArray, toByteBuffer, toByteBuffer, toByteBuffer, toInputStream

Methods inherited from class java.lang.Object

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

Constructor Detail

ConcatenatingByteBufferCollector

public ConcatenatingByteBufferCollector(ByteBufferAllocator allocator)

Constructs a new ConcatenatingByteBufferCollector instance with the specified allocator.

Parameters:

allocator - to be used for allocating the required ByteBuffer instances

Method Detail

collect

public void collect(BytesInput bytesInput)

Collects the content of the specified input. It allocates a new ByteBuffer instance that can contain all the content.

Parameters:

bytesInput - the input which content is to be collected

close

public void close()

Specified by:

close in interface AutoCloseable

writeAllTo

public void writeAllTo(OutputStream out)
                throws IOException

Description copied from class: BytesInput

writes the bytes into a stream

Specified by:

writeAllTo in class BytesInput

Parameters:

out - an output stream

Throws:

IOException - if there is an exception writing

writeInto

public void writeInto(ByteBuffer buffer)

Description copied from class: BytesInput

For internal use only. It is expected that the buffer is large enough to fit the content of this BytesInput object.

size

public long size()

Specified by:

size in class BytesInput

Returns:

the size in bytes that would be written

memUsageString

public String memUsageString(String prefix)

Parameters:

prefix - a prefix to be used for every new line in the string

Returns:

a text representation of the memory usage of this structure