Comprehensive interpretation of Excalibur Collections in the Java Class Library comprehensive interpretation
Excalibur Collections framework is a Java class library that provides a series of powerful data structures and algorithms to enhance and optimize the performance and functions of the Java collection framework.This article will comprehensively interpret the technical principles of the Excalibur Collections framework.
The core idea of the Excalibur Collections framework is to improve the performance of the Java collection framework by minimizing the creation and destruction of the object, and to maximize the use of the data structure and algorithm.By optimizing memory distribution and GC consumption, and providing efficient data structure and algorithm implementation, the performance of the Java collection framework in large -scale data processing and high concurrency scene is greatly improved.
1. Data structure optimization
The Excalibur Collections framework is introduced by introducing raw data types, such as inthashset, longArrayList, etc. to avoid packaging and dismantling overhead of packaging classes in the Java set framework.These collection classes based on raw data types have obvious advantages in memory occupation and operating efficiency.At the same time, the EXCALIBUR Collections framework also provides more data structures, such as Biglist, ObjectStack, etc., for efficiently processing the needs of large -scale data and specific scenarios.
Below is a sample code that uses Excalibur Collections framework:
import org.eclipse.collections.api.list.MutableList;
import org.eclipse.collections.impl.factory.Lists;
public class ExcaliburCollectionsExample {
public static void main(String[] args) {
// Create a variable list
MutableList<Integer> list = Lists.mutable.of(1, 2, 3, 4, 5);
// Use the algorithm provided by the Excalibur Collections framework for processing
int sum = list.sumOfInt(i -> i);
System.out.println("Sum: " + sum);
// Use the data structure provided by the Excalibur Collections framework for efficient operation
MutableList<Integer> reversedList = list.reverseThis();
System.out.println("Reversed List: " + reversedList);
}
}
Second, algorithm optimization
The Excalibur Collections framework provides a series of efficient algorithm implementation, such as sorting, searching, filtering, etc. to greatly improve the performance of the Java collection framework during data processing.The framework of the framework is implemented, thereby reducing computing and memory overhead.At the same time, the Excalibur CollectionS framework also allows users to customize algorithms to expand and customize through interfaces and functional programming.
Next is a sample code that uses Excalibur Collections framework algorithm:
import org.eclipse.collections.api.list.MutableList;
import org.eclipse.collections.impl.factory.Lists;
public class ExcaliburCollectionsAlgorithmExample {
public static void main(String[] args) {
MutableList<Integer> list = Lists.mutable.of(5, 3, 1, 4, 2);
// Use the sorting algorithm provided by the Excalibur Collections framework for sorting
MutableList<Integer> sortedList = list.toSortedList();
System.out.println("Sorted List: " + sortedList);
// Use the algorithm provided by the Excalibur Collections framework for filtering
MutableList<Integer> filteredList = list.select(i -> i % 2 == 0);
System.out.println("Filtered List: " + filteredList);
}
}
Summarize:
The Excalibur Collections framework is implemented by optimizing the data structure and algorithm, which improves the performance and functions of the Java collection framework.Its core principle is to avoid the creation and destruction of objects, maximize the use of data structures and algorithms, and provide efficient data structure and algorithm implementation.By using the Excalibur Collections framework, developers can better process the needs of large -scale data and high concurrent scenes.