fiftyone.mobile.detection.entities.memory

Class MemoryFixedList<T extends BaseEntity>

java.lang.Object

fiftyone.mobile.detection.entities.memory.BaseList<T>

fiftyone.mobile.detection.entities.memory.MemoryFixedList<T>

All Implemented Interfaces:

Disposable, ReadonlyList<T>, Iterable<T>

public class MemoryFixedList<T extends BaseEntity>
extends BaseList<T>

A readonly list of fixed length entity types held in memory.

Entities in the underlying data structure are either fixed length where the data that represents them always contains the same number of bytes, or variable length where the number of bytes to represent the entity varies.

This class uses the index of the entity in the accessor. The list is typically used by entities that need to be found quickly using a divide and conquer algorithm.

The constructor will read the header information about the underlying data structure and the entities are added to the list when the Read method is called.

The constructor will read the header information about the underlying data structure and the entities are added to the list when the Read method is called.

The class supports source stream that do not support seeking.

Should not be referenced directly.

Field Summary

Fields inherited from class fiftyone.mobile.detection.entities.memory.BaseList

array, dataSet, entityFactory, header

Constructor Summary

Constructors

Constructor and Description
MemoryFixedList(Dataset dataSet, BinaryReader reader, BaseEntityFactory<T> entityFactory) Constructs a new instance of FixedList

Method Summary

Modifier and Type	Method and Description
T	get(int i) Accessor for the fixed list
void	read(BinaryReader reader) Reads the list into memory

Methods inherited from class fiftyone.mobile.detection.entities.memory.BaseList

dispose, iterator, size

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Constructor Detail

MemoryFixedList

public MemoryFixedList(Dataset dataSet,
                       BinaryReader reader,
                       BaseEntityFactory<T> entityFactory)

Constructs a new instance of FixedList

Parameters:

dataSet - The DetectorDataSet being created

reader - Reader connected to the source data structure and positioned to start reading

entityFactory - Interface implementation used to create new entities of type T

Method Detail

read

public void read(BinaryReader reader)
          throws IOException

Reads the list into memory

Parameters:

reader - Reader connected to the source data structure and positioned to start reading

Throws:

IOException

get

public T get(int i)

Accessor for the fixed list

Parameters:

i - The index of the entity to be returned from the list

Returns:

Entity at the index requested