io.druid.segment.data

Interface ObjectStrategy<T>

All Superinterfaces:

Comparator<T>

All Known Subinterfaces:

CacheableObjectStrategy<T>

All Known Implementing Classes:

CompressedByteBufferObjectStrategy, CompressedFloatBufferObjectStrategy, CompressedIntBufferObjectStrategy, CompressedLongBufferObjectStrategy, CompressedObjectStrategy, FixedSizeCompressedObjectStrategy, IndexedRTree.ImmutableRTreeObjectStrategy, SketchObjectStrategy, VSizeCompressedObjectStrategy

public interface ObjectStrategy<T>
extends Comparator<T>

Method Summary

Modifier and Type	Method and Description
T	fromByteBuffer(ByteBuffer buffer, int numBytes) Convert values from their underlying byte representation.
Class<? extends T>	getClazz()
byte[]	toBytes(T val)

Methods inherited from interface java.util.Comparator

compare, comparing, comparing, comparingDouble, comparingInt, comparingLong, equals, naturalOrder, nullsFirst, nullsLast, reversed, reverseOrder, thenComparing, thenComparing, thenComparing, thenComparingDouble, thenComparingInt, thenComparingLong

Method Detail

getClazz

Class<? extends T> getClazz()

fromByteBuffer

T fromByteBuffer(ByteBuffer buffer,
                 int numBytes)

Convert values from their underlying byte representation. Implementations of this method must not change the given buffer mark, or limit, but may modify its position. Use buffer.asReadOnlyBuffer() or buffer.duplicate() if mark or limit need to be set.

Parameters:

buffer - buffer to read value from

numBytes - number of bytes used to store the value, starting at buffer.position()

Returns:

an object created from the given byte buffer representation

toBytes

byte[] toBytes(T val)