How long work collection’s method or complexity
Get Method Array ArrayList LinkedList Get O(1) O(1) O(N) Set by index O(1) O(1) O(N) Remove first — O(N) O(1) Remove after O(1) O(N) O(1) Add first O(N) O(N) O(1)
Spring boot, Spring Data Jpa, Problem with JpaRepository
When Spring boot start I have a problem «…Cannot create inner bean…» The problem depends with JpaRepository I have configuration class JpaConfig For resolve problem I did: 1 for bean entityManagerFactory in annotation I add name «emf» @Bean(name = \"emf\") public LocalContainerEntityManagerFactoryBean configureEntityManager() 2 in annotation «EnableJpaRepositories» for JpaConfig I add property «entityManagerFactoryRef» @EnableJpaRepositories(basePackages = ...