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android architecture sqlite android history jellybean dvm linux kernel resusable components kitkat application framework android platform android versions android overview android outline android web service uddi http rest wsdl cxf wadl soap java hubs switches and ethernet types of ethernet ethernet technologies ethernet cabling tcp/ip model osi reference model networks types network architecture networks pointcut expression joint point aspectj load time weaving spring aop cross cutting concern pointcut parameters spring aop terminology aspectj precedence aop advices aop intoroduction transactions with load time weaving isolation levels propagation behaviour propagation transaction attribute transaction advices transaction manager declarative transaction programmatic transactions spring transactions transaction behaviour acid properties