Detailed explanation of Solong Collections framework technical principles in the Java class library

Solong Collections is a framework technology in the Java class library, which provides developers with an efficient method for processing large data sets.Specifically, the Solong Collections framework is managed by disassembling large data sets into multiple fragments and using indexes to reduce data storage overhead and access delay in memory. In the Solong Collections framework, the data set is divided into multiple fragments. Each fragment is a continuous memory area, which contains a certain number of elements.This fragmentary design can reduce memory fragments and make the storage of data in memory continuously, thereby increasing the access speed of data.In addition, Solong Collections also uses an index structure to maintain the relationship between the relationship between fragments and elements in the fragment to quickly locate and access data. In order to better understand the technical principles of Solong Collections, the following is a simple Java code example: import jdk.incubator.vector.*; public class SoLongCollectionsDemo { public static void main(String[] args) { // Create a Solong Collection SoLongCollection<Long> collection = new SoLongCollection<>(); // Add element to collection for (long i = 0; i < 1000000; i++) { collection.add(i); } // Traversing collection and output elements for (SoLongCollection.SLCIterator<Long> iterator = collection.iterator(); iterator.hasNext(); ) { long element = iterator.next(); System.out.println(element); } } } class SoLongCollection<T> { private static final int SEGMENT_SIZE = 1024; private Object[] segments; private int size; // Constructor public SoLongCollection() { segments = new Object[0]; size = 0; } // Add elements public void add(T element) { int segmentIndex = size / SEGMENT_SIZE; int elementIndex = size % SEGMENT_SIZE; if (segmentIndex >= segments.length) { Object[] newSegments = new Object[segments.length + 1]; System.arraycopy(segments, 0, newSegments, 0, segments.length); segments = newSegments; } Object segment = segments[segmentIndex]; if (segment == null) { segment = VectorMask.fromArray(SoLongVector.class, new long[SEGMENT_SIZE]); segments[segmentIndex] = segment; } SoLongVector vector = (SoLongVector) segment; vector.setLong((int) elementIndex, (long) element); size++; } // iterators public SLCIterator<T> iterator() { return new SLCIterator<>(segments, size); } // The iterator implementation static class SLCIterator<T> { private final Object[] segments; private final int size; private int currentSegmentIndex; private int currentElementIndex; public SLCIterator(Object[] segments, int size) { this.segments = segments; this.size = size; this.currentSegmentIndex = 0; this.currentElementIndex = 0; } public boolean hasNext() { return currentSegmentIndex < segments.length && currentElementIndex < size; } public long next() { if (!hasNext()) { throw new NoSuchElementException(); } SoLongVector vector = (SoLongVector) segments[currentSegmentIndex]; long element = vector.getLong(currentElementIndex); currentElementIndex++; if (currentElementIndex == SEGMENT_SIZE) { currentSegmentIndex++; currentElementIndex = 0; } return element; } } } vector class SoLongVector { private final long[] data; public SoLongVector(long[] data) { this.data = data; } public static SoLongVector fromArray(Class<SoLongVector> $type, long[] data) { return new SoLongVector(data); } public long getLong(int index) { return data[index]; } public void setLong(int index, long value) { data[index] = value; } } In the above code example, we created a `SOLONGCOLLECTION" classes to represent the Solong Collections set.This class uses an array of a `Object []` to store all the fragments. Each fragment is an object of a `SOLONGVECTOR`, which is actually a Long type array.In the `SOLONGCOLLECTION" class, we provide the `add` method to add element to the collection, and use the index to calculate the position of the element in the fragment. In addition, the `SOLONGCOLLECTION" class also provides an internal class, the iterator of the collection.The iterator implements the method of `Hasnext` and` Next` to traverse elements in the collection.In the `next` method, we obtain elements based on the current index and update the index in order to obtain the next element.When traversing to the end of a fragment, we switch to the next fragment and continue traversing. It should be noted that the above code example just demonstrates the simple implementation principle of Solong Collections, and does not include other complex optimization and functions in the framework.The actual Solong CollectionS framework may use more complicated data structures and algorithms to further improve performance and reduce resource occupation.