com.facebook.presto.parquet.batchreader.decoders.delta

Class Int32DeltaBinaryPackedValuesDecoder

java.lang.Object

com.facebook.presto.parquet.batchreader.decoders.delta.Int32DeltaBinaryPackedValuesDecoder

All Implemented Interfaces:

ValuesDecoder, ValuesDecoder.Int32ValuesDecoder

public class Int32DeltaBinaryPackedValuesDecoder
extends Object
implements ValuesDecoder.Int32ValuesDecoder

Note: this is not an optimized values decoder. It makes use of the existing Parquet decoder. Given that this type encoding is not a common one, just use the existing one provided by Parquet library and add a wrapper around it that satisfies the ValuesDecoder.Int32ValuesDecoder interface.

Nested Class Summary

Nested classes/interfaces inherited from interface com.facebook.presto.parquet.batchreader.decoders.ValuesDecoder

ValuesDecoder.BinaryValuesDecoder, ValuesDecoder.BooleanValuesDecoder, ValuesDecoder.Int32ValuesDecoder, ValuesDecoder.Int64TimestampMicrosValuesDecoder, ValuesDecoder.Int64ValuesDecoder, ValuesDecoder.TimestampValuesDecoder

Constructor Summary

Constructors

Constructor and Description
Int32DeltaBinaryPackedValuesDecoder(int valueCount, org.apache.parquet.bytes.ByteBufferInputStream bufferInputStream)

Method Summary

Modifier and Type	Method and Description
long	getRetainedSizeInBytes()
void	readNext(int[] values, int offset, int length)
void	skip(int length)

Methods inherited from class java.lang.Object

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

Constructor Detail

Int32DeltaBinaryPackedValuesDecoder

public Int32DeltaBinaryPackedValuesDecoder(int valueCount,
                                           org.apache.parquet.bytes.ByteBufferInputStream bufferInputStream)
                                    throws IOException

Throws:

IOException

Method Detail

readNext

public void readNext(int[] values,
                     int offset,
                     int length)

Specified by:

readNext in interface ValuesDecoder.Int32ValuesDecoder

skip

public void skip(int length)

Specified by:

skip in interface ValuesDecoder.Int32ValuesDecoder

getRetainedSizeInBytes

public long getRetainedSizeInBytes()

Specified by:

getRetainedSizeInBytes in interface ValuesDecoder