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AOP - Spring  (Aspect Oriented Programming with Spring) Technical Knowledge Sharing  Session 2
[object Object],[object Object],[object Object],[object Object],[object Object],Crosscutting Concerns
public void withdraw(int amount){ balance = this.balance – amount;  accountDao.saveBalance(balance); } bankLogger.info(“Withdraw - ” + amount); txn.begin(); txn.commit(); public void deposit(int amount){ balance = this.balance + amount;  accountDao.saveBalance(balance); } bankLogger.info(“Deposit - ” + amount); txn.begin(); txn.commit(); Crosscutting Concerns ,[object Object],Transaction Management Logging
public void withdraw(int amount){ balance = this.balance – amount;  accountDao.saveBalance(balance); } public void deposit(int amount){ balance = this.balance + amount;  accountDao.saveBalance(balance); } ,[object Object],[object Object],[object Object],Why Worrying about Crosscutting Concerns? Logging bankLogger.info(“Withdraw - ” + amount); bankLogger.info(“Deposit - ” + amount); Transaction Management txn.begin(); txn.commit(); txn.begin(); txn.commit();
Transaction Management Logging public void withdraw(int amount){ balance = this.balance – amount;  accountDao.saveBalance(balance); } public void deposit(int amount){ balance = this.balance + amount;  accountDao.saveBalance(balance); } Any solution for Crosscutting Concerns?  ,[object Object],txn.begin(); txn.commit(); txn.begin(); txn.commit(); bankLogger.info(“Withdraw - ” + amount); bankLogger.info(“Deposit - ” + amount);
[object Object],What AOP Does?
withdraw deposit public void withdraw(int amount){ balance = this.balance – amount;  accountDao.saveBalance(balance); } public void deposit(int amount){ balance = this.balance + amount;  accountDao.saveBalance(balance); } Joinpoint Applying AOP Logging Transaction Management Advise
[object Object],[object Object],[object Object],[object Object],[object Object],AOP Concepts
[object Object],[object Object],AOP Concepts Contd…
[object Object],[object Object],[object Object],[object Object],[object Object],withdraw Advice
[object Object],[object Object],[object Object],[object Object],[object Object],Method Method Method Method Method Exception Advice Types
[object Object],[object Object],AOP Weaving Class Bank{ public void withdraw(int amnt); } Proxy Target Caller
public class  CustomerImpl   implements  Customer { public void  browse (){ System.out.println(“ Browsing Internet ”); } } public class  CafeOwner { public void  loginTime (){ System.out.println(“ Login Time ”); } public void  logoutTime (){ System.out.println(“ Logout Time ”); } public void  issueBill (){ System.out.println(“ Calculate and issue  the usage Bill ”); } } ,[object Object],Example – Use of AOP with Spring
[object Object],[object Object],[object Object],[object Object],Example – Use of AOP with Spring Browse CafeOwner.loginTime () CafeOwner.logoutTime () Before Advice After Advice Pointcut
Reference  ,[object Object],[object Object],[object Object],[object Object],[object Object]
Thank you

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Aop spring

  • 1. AOP - Spring (Aspect Oriented Programming with Spring) Technical Knowledge Sharing Session 2
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  • 7. withdraw deposit public void withdraw(int amount){ balance = this.balance – amount; accountDao.saveBalance(balance); } public void deposit(int amount){ balance = this.balance + amount; accountDao.saveBalance(balance); } Joinpoint Applying AOP Logging Transaction Management Advise
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