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package com.article.examples;
import java.util.List;
/**
* Main class that calls all example methods
*
* @author Gary A. Stafford
*/
public class RunExamples {
private static final Examples examples = new Examples();
private static final ProcessTimer timer = new ProcessTimer();
/**
* @param args the command line arguments
* @throws Exception
*/
public static void main(String[] args) throws Exception {
System.out.println();
System.out.println("SQL SERVER STATEMENT EXAMPLES");
System.out.println("======================================");
// Statement example, no parameters, returns Integer
timer.setStartTime(System.nanoTime());
double averageWeight = examples.getAverageProductWeightST();
timer.setEndTime(System.nanoTime());
System.out.println("Method: GetAverageProductWeightST");
System.out.println("Description: Statement, no parameters, returns Integer");
System.out.printf("Duration (ms): %d%n", timer.getDuration());
System.out.printf("Results: Average product weight (lb): %s%n", averageWeight);
System.out.println("---");
// PreparedStatement example, no parameters, returns Integer
timer.setStartTime(System.nanoTime());
averageWeight = examples.getAverageProductWeightPS();
timer.setEndTime(System.nanoTime());
System.out.println("Method: GetAverageProductWeightPS");
System.out.println("Description: PreparedStatement, no parameters, returns Integer");
System.out.printf("Duration (ms): %d%n", timer.getDuration());
System.out.printf("Results: Average product weight (lb): %s%n", averageWeight);
System.out.println("---");
// CallableStatement, no parameters, returns Integer
timer.setStartTime(System.nanoTime());
averageWeight = examples.getAverageProductWeightCS();
timer.setEndTime(System.nanoTime());
System.out.println("Method: GetAverageProductWeightCS");
System.out.println("Description: CallableStatement, no parameters, returns Integer");
System.out.printf("Duration (ms): %d%n", timer.getDuration());
System.out.println("---");
// CallableStatement example, (1) output parameter, returns Integer
timer.setStartTime(System.nanoTime());
averageWeight = examples.getAverageProductWeightOutCS();
timer.setEndTime(System.nanoTime());
System.out.println("Method: GetAverageProductWeightOutCS");
System.out.println("Description: CallableStatement, (1) output parameter, returns Integer");
System.out.printf("Duration (ms): %d%n", timer.getDuration());
System.out.printf("Results: Average product weight (lb): %s%n", averageWeight);
System.out.println("---");
// CallableStatement example, (1) input parameter, returns ResultSet
timer.setStartTime(System.nanoTime());
String lastNameStartsWith = "Sa";
List<String> employeeFullName =
examples.getEmployeesByLastNameCS(lastNameStartsWith);
timer.setEndTime(System.nanoTime());
System.out.println("Method: GetEmployeesByLastNameCS");
System.out.println("Description: CallableStatement, (1) input parameter, returns ResultSet");
System.out.printf("Duration (ms): %d%n", timer.getDuration());
System.out.printf("Results: Last names starting with '%s': %d%n", lastNameStartsWith, employeeFullName.size());
if (employeeFullName.size() > 0) {
System.out.printf(" Last employee found: %s%n", employeeFullName.get(employeeFullName.size() - 1));
} else {
System.out.printf("No employees found with last name starting with '%s'%n", lastNameStartsWith);
}
System.out.println("---");
// CallableStatement example, (2) input parameters, returns ResultSet
timer.setStartTime(System.nanoTime());
String color = "Red";
String size = "44";
List<Product> productList =
examples.getProductsByColorAndSizeCS(color, size);
timer.setEndTime(System.nanoTime());
System.out.println("Method: GetProductsByColorAndSizeCS");
System.out.println("Description: CallableStatement, (2) input parameter, returns ResultSet");
System.out.printf("Duration (ms): %d%n", timer.getDuration());
if (productList.size() > 0) {
System.out.printf("Results: Products found (color: '%s', size: '%s'): %d%n", color, size, productList.size());
System.out.printf(" First product: %s (%s)%n", productList.get(0).getProduct(), productList.get(0).getProductNumber());
} else {
System.out.printf("No products found with color '%s' and size '%s'%n", color, size);
}
System.out.println("---");
examples.closeConnection();
}
}
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