org.apache.datasketches

Class ArrayOfNumbersSerDe

java.lang.Object

org.apache.datasketches.ArrayOfItemsSerDe<Number>

org.apache.datasketches.ArrayOfNumbersSerDe

public class ArrayOfNumbersSerDe
extends ArrayOfItemsSerDe<Number>

Methods of serializing and deserializing arrays of the object version of primitive types of Number.

This class serializes numbers with a leading byte (ASCII character) indicating the type. The class keeps the values byte aligned, even though only 3 bits are strictly necessary to encode one of the 6 different primitives with object types that extend Number.

Classes handled are: Long, Integer, Short, Byte, Double, and Float.

Author:

Jon Malkin

Constructor Summary

Constructors

Constructor and Description
ArrayOfNumbersSerDe()

Method Summary

Modifier and Type	Method and Description
Number[]	deserializeFromMemory(org.apache.datasketches.memory.Memory mem, int length) Deserialize an array of items from a given Memory object.
byte[]	serializeToByteArray(Number[] items) Serialize an array of items to byte array.

Methods inherited from class java.lang.Object

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

Constructor Detail

ArrayOfNumbersSerDe

public ArrayOfNumbersSerDe()

Method Detail

serializeToByteArray

public byte[] serializeToByteArray(Number[] items)

Description copied from class: ArrayOfItemsSerDe

Serialize an array of items to byte array. The size of the array doesn't need to be serialized. This method is called by the sketch serialization process.

Specified by:

serializeToByteArray in class ArrayOfItemsSerDe<Number>

Parameters:

items - array of items to be serialized

Returns:

serialized representation of the given array of items

deserializeFromMemory

public Number[] deserializeFromMemory(org.apache.datasketches.memory.Memory mem,
                                      int length)

Description copied from class: ArrayOfItemsSerDe

Deserialize an array of items from a given Memory object. This method is called by the sketch deserialization process.

Specified by:

deserializeFromMemory in class ArrayOfItemsSerDe<Number>

Parameters:

mem - Memory containing a serialized array of items

length - number of items in the serialized array

Returns:

deserialized array of items