Package org.apache.druid.query.aggregation

Class AbstractSerializablePairLongObjectBufferStore.TransferredBuffer

java.lang.Object

org.apache.druid.query.aggregation.AbstractSerializablePairLongObjectBufferStore.TransferredBuffer

All Implemented Interfaces:

Serializer

Enclosing class:

AbstractSerializablePairLongObjectBufferStore<T extends SerializablePair<Long,?>>

public static class AbstractSerializablePairLongObjectBufferStore.TransferredBuffer
extends Object
implements Serializer

contains serialized data that is compressed and delta-encoded (Long) It's ready to be transferred to a WritableByteChannel

Constructor Summary

Constructors

Constructor	Description
TransferredBuffer(CellWriter cellWriter, AbstractSerializablePairLongObjectColumnHeader<?> columnHeader)

Method Summary

Modifier and Type	Method	Description
long	getSerializedSize()	Returns the number of bytes, that this Serializer will write to the output _channel_ (not smoosher) on a Serializer.writeTo(java.nio.channels.WritableByteChannel, org.apache.druid.java.util.common.io.smoosh.FileSmoosher) call.
void	writeTo(WritableByteChannel channel, FileSmoosher smoosher)	Writes the serialized form of this object.

Methods inherited from class java.lang.Object

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

Constructor Detail

TransferredBuffer

public TransferredBuffer(CellWriter cellWriter,
                         AbstractSerializablePairLongObjectColumnHeader<?> columnHeader)

Method Detail

getSerializedSize

public long getSerializedSize()

Description copied from interface: Serializer

Returns the number of bytes, that this Serializer will write to the output _channel_ (not smoosher) on a Serializer.writeTo(java.nio.channels.WritableByteChannel, org.apache.druid.java.util.common.io.smoosh.FileSmoosher) call.

Specified by:

getSerializedSize in interface Serializer

writeTo

public void writeTo(WritableByteChannel channel,
                    FileSmoosher smoosher)
             throws IOException

Description copied from interface: Serializer

Writes the serialized form of this object. The entire object may be written to the provided channel, or the object may be split over the provided channel and files added to the {@link FileSmoosher], where additional channels can be created via FileSmoosher.addWithSmooshedWriter(String, long). The latter approach is useful when the serialized form of the object is too large for a single smoosh container. At the time this javadoc was written, the max smoosh container size is limit to the max ByteBuffer size.

Specified by:

writeTo in interface Serializer

Throws:

IOException