Static block Vs Static Method

Equals Override and Hashcode String mutable what does it meant ?

between overriding and overloading a method. explain the difference between an interface and an abstract class

they asked what a static block was. they asked the difference between static variables and other variables.

hey asked if java was pass by value or pass by reference arrays and the like are passed by reference, primitives are passed by value

yes c/c++ is both i remember that for my C++ days in college :)

I usually get a stack vs heap question, but I misheard the question about static variables.
I thought he said stack and I explained the difference between the stack and the heap.
Then we figured out what happened and I went on to explain static vs non-static variables.

performance tuning explain plan

AWR

Plat form service+ tools and framewwork + CAS

Intergrations - > MA associates +

SOASCA - New Relic Junit / Sonar cube / PMD check style

student { int rollnum, name age class }

teacher { int id, name age list of class }

class { list of student; list of teachers; Teacher classTeacher }

class School { int schoolNum; List of Class List of Teachers }

Controller:

StudentController.java { @Autowire StudentService StudentService.saveStudent(student)

}

// Databse service should only be from DAO layer

StudentService.java { @Autowire StudentDAO

saveStudent(student) { // bussiness unit -like duplicate /already exists StudentDAO } }

StudentDAO.java { SavaStudent(Student) { Fire insert queries; } }

####################

Inferface

AddPayment

price list

Pdp --> add to cart -- > sku -- commerce item -- > Add to Order -- > list of commerce items

Reprice Order -- droplet or by FH Pricing Engine -- > item price engine / shipping pricing engine / Tax pricing engine /Order pricing engine Pricing Calculator -- sales price calculator / market place item -- calulator customize gift card

Shipping price -- > std / expedite /express --- shipping price calculator shipping discount calculator Tax price calculator -- third party calculator Order Price Calculator

--------- ATG Actor

CartModifierService ---- CartModifierService extends CommerceServices { TCCPaymentGroupManager --- TCCPaymentGroupManager extends StorePaymentGroupManager implements Constants { CheckOutService --- CheckOutService extends CommerceServices {

eg : checkoutOut Actor -- create commerce item

-- TCCOrderImpl order = (TCCOrderImpl) getPurchaseProcessConfiguration().getOrderManager().loadOrder(orderId);

---- PaymentTypeGroups

List paymentTypeGroups = getPaymentGroupByType(order, ITEM_CASH); Cash cash = null; if (paymentTypeGroups.isEmpty()) { cash = (Cash) createPaymentGroup(ITEM_CASH); addPaymentGroupToOrder(order, cash); getOrderManager().addRemainingOrderAmountToPaymentGroup(order, cash.getId()); } else { } recalculatePaymentGroupAmounts(order); cash.setTotalAmountPaid(amount);

<actor-chain id="addDeviceItemToOrder" transaction="TX_SUPPORTS">
	<component id="addDeviceItemToOrder"
		name="/com/tcc/commerce/purchase/CartModifierService"
		method-return-var="baseInfo"
		invoke-method-requires-session-confirmation="false" method="addDeviceItemToOrder"
		component-var="baseInfo" set-property-requires-session-confirmation="false">
		<input name="losId" value="${param.losId}" class-name="java.lang.String" />
		<input name="deviceProductId" value="${param.deviceProductId}"
			class-name="java.lang.String" />
		<input name="type" value="${param.type}"
			class-name="java.lang.String" />
		<input name="additionalMsg" value="${param.additionalMsg}" 
			class-name="java.lang.String" />
		<output id="baseInfo" name="baseInfo" value="${baseInfo}" />
	</component>
</actor-chain>

		updateItemInOrder(deviceSkuId, isOrderedItem, configurableItem, order);
                    addDeviceInfoToOrder(contractType, activationType, configurableItem, deviceSkuId);

there is no FH or droplets, there is no gateway

Create New Repository : $class=atg.adapter.gsa.GSARepository $scope=global repositoryName=MyNewRepository definitionFiles=<YOUR_CONFIG_PATH>/<YOUR_XML_FILE_NAME>.xml XMLToolsFactory=/atg/dynamo/service/xml/XMLToolsFactory dataSource=/atg/dynamo/service/jdbc/JTDataSource transactionManager=/atg/dynamo/transaction/TransactionManager idGenerator=/atg/dynamo/service/IdGenerator

Repository -

type="primary"

type="auxiliary"

type="multi"   --  keep the order

NO Order

ATG Repository Cache Mode ClientLockManager Component

If an SQL repository contains item descriptors that use locked caching, set the Repository component’s lockManager property to a component of type atg.service.lockmanager.ClientLockManager. ATG provides a default ClientLockManager component:

/atg/dynamo/service/ClientLockManager

Thus, you can set an SQL Repository’s lockManager property as follows:

lockManager=/atg/dynamo/service/ClientLockManager $class=atg.service.lockmanager.ClientLockManager lockServerAddress=tartini.acme-widgets.com,corelli.acme-widgets.com lockServerPort=9010,9010 useLockServer=true