AOP - Pointcut Expressions - Match Method Parameter Types

Author: vladutmargineanu

Diff for: spring-demo-aop/src/com/luv2code/aopdemo/Account.java

@@ -0,0 +1,21 @@
+package com.luv2code.aopdemo;
+
+public class Account {
+	
+	private String name;
+	private String level;
+	
+	public String getName() {
+		return name;
+	}
+	public void setName(String name) {
+		this.name = name;
+	}
+	public String getLevel() {
+		return level;
+	}
+	public void setLevel(String level) {
+		this.level = level;
+	}
+
+}

Diff for: spring-demo-aop/src/com/luv2code/aopdemo/MainDemoApp.java

@@ -21,15 +21,23 @@ public static void main(String[] args) {
 		// call the business method
 		theAccountDAO.addAccount();
 
+		// call the business method with one param
+		Account myAccount = new Account();
+		theAccountDAO.addAccount(myAccount);
+		
+		// call the business method with two param
+		theAccountDAO.addAccount(myAccount, true);
+		theAccountDAO.doWork();
+		
 		// call the membership business method
 		theMembershipDAO.addSillyMember();
 
 		// call the membership business method
 		theMembershipDAO.addSillyMember1();
+		theMembershipDAO.goToSleep();
 
 		// call the business method again
-		System.out.println("\n Let's call it again!\n");
-		theAccountDAO.addAccount();
+ 		theAccountDAO.addAccount();
 
 		// close the context
 		context.close();

Diff for: spring-demo-aop/src/com/luv2code/aopdemo/aspect/MyDemoLoggingAspect.java

@@ -34,7 +34,7 @@ public class MyDemoLoggingAspect {
 	// match method starting with "add" in any class
 
 	/*
-	 * @Before("execution(public void add*t())" ) public void
+	 * @Before("execution(public void add*())" ) public void
 	 * beforeAddAccountAdvice() {
 	 * 
 	 * System.out.println("\n======>>> Executing @Before advice on addAccount()"); }
@@ -43,14 +43,54 @@ public class MyDemoLoggingAspect {
 	// match method with based on Return Type
 
 	/*
-	 * @Before("execution(void add*t())" ) public void beforeAddAccountAdvice() {
+	 * @Before("execution(void add*())" ) public void beforeAddAccountAdvice() {
 	 * 
 	 * System.out.println("\n======>>> Executing @Before advice on addAccount()"); }
 	 */
 
 	// match method with ANY Return Type - use wildcards
 
-	@Before("execution(* add*())")
+	/*
+	 * @Before("execution(* add*())") public void beforeAddAccountAdvice() {
+	 * 
+	 * System.out.println("\n======>>> Executing @Before advice on addAccount()"); }
+	 */
+	
+	// Match method with "Account" Parameter Type (for the add* method)
+	
+	/*
+	 * @Before("execution(* add*(com.luv2code.aopdemo.Account))") public void
+	 * beforeAddAccountAdvice() {
+	 * 
+	 * System.out.println("\n======>>> Executing @Before advice on addAccount()"); }
+	 */
+	
+	// Match method with "Account" Param and more Param types
+	// (..) => Match on any number of arguments
+	
+	/*
+	 * @Before("execution(* add*(com.luv2code.aopdemo.Account, ..))") public void
+	 * beforeAddAccountAdvice() {
+	 * 
+	 * System.out.println("\n======>>> Executing @Before advice on addAccount()"); }
+	 */
+	
+	// Match method with ANY parameters
+	
+	/*
+	 * @Before("execution(* add*(..))") public void beforeAddAccountAdvice() {
+	 * 
+	 * System.out.println("\n======>>> Executing @Before advice on addAccount()"); }
+	 */
+	
+	// Match methods in a given Package
+	
+	// 1. * return type
+	// 2. com.luv2code.aopdemo.dao -> the package
+	// 3. .*.* -> the class and the method
+	// 4. (..) -> params
+		
+	@Before("execution(* com.luv2code.aopdemo.dao.*.*(..))")
 	public void beforeAddAccountAdvice() {
 
 		System.out.println("\n======>>> Executing @Before advice on addAccount()");

Diff for: spring-demo-aop/src/com/luv2code/aopdemo/dao/AccountDAO.java

@@ -2,10 +2,26 @@
 
 import org.springframework.stereotype.Component;
 
+import com.luv2code.aopdemo.Account;
+
 @Component
 public class AccountDAO {
 
 	public void addAccount() {
 		System.out.println(getClass() + ": Doing my DB work: Adding an account");
 	}
+
+	public void addAccount(Account theAccount) {
+		System.out.println(getClass() + ": Doing my DB work: Adding an account");
+	}
+
+	public void addAccount(Account theAccount, boolean vipFlag) {
+		System.out.println(getClass() + ": Doing my DB work: Adding an account");
+	}
+
+	public boolean doWork() {
+		
+		System.out.println(getClass() + ": doWork()");
+		return false;
+	}
 }

Diff for: spring-demo-aop/src/com/luv2code/aopdemo/dao/MembershipDAO.java

@@ -18,4 +18,9 @@ public boolean addSillyMember1() {
 
 		return true;
 	}
+	
+	public void goToSleep() {
+		
+		System.out.println(getClass() + ": I am going to sleep now");
+	}
 }