Package com.vaadin.hilla.crud

Class ListRepositoryService<T,ID,R extends org.springframework.data.repository.CrudRepository<T,ID> & org.springframework.data.jpa.repository.JpaSpecificationExecutor<T>>

java.lang.Object
com.vaadin.hilla.crud.ListRepositoryService<T,ID,R>
All Implemented Interfaces:
CountService, GetService<T,ID>, ListService<T>
Direct Known Subclasses:
CrudRepositoryService
public class ListRepositoryService<T,ID,R extends org.springframework.data.repository.CrudRepository<T,ID> & org.springframework.data.jpa.repository.JpaSpecificationExecutor<T>> extends Object implements ListService<T>, GetService<T,ID>, CountService
A browser-callable service that delegates list operations to a JPA repository.

  • Constructor Details

    • ListRepositoryService

      public ListRepositoryService()

    • ListRepositoryService

      public ListRepositoryService(R repository)
      Creates the service using the given repository.
      Parameters:
      repository - the JPA repository

  • Method Details

    • getRepository

      protected R getRepository()
      Accessor for the repository instance.
      Returns:
      the repository instance

    • list

      public List<T> list(org.springframework.data.domain.Pageable pageable, @Nullable Filter filter)
      Description copied from interface: ListService
      Lists objects of the given type using the paging, sorting and filtering options provided in the parameters.
      Specified by:
      list in interface ListService<T>
      Parameters:
      pageable - contains information about paging and sorting
      filter - the filter to apply or null to not filter
      Returns:
      a list of objects or an empty list if no objects were found

    • get

      public Optional<T> get(ID id)
      Description copied from interface: GetService
      Gets the object with the given id.
      Specified by:
      get in interface GetService<T,ID>
      Parameters:
      id - the id of the object
      Returns:
      the object, or an empty optional if no object with the given id

    • exists

      public boolean exists(ID id)
      Description copied from interface: GetService
      Checks if an object with the given id exists.
      Specified by:
      exists in interface GetService<T,ID>
      Parameters:
      id - the id of the object
      Returns:
      true if the object exists, false otherwise

    • count

      public long count(@Nullable Filter filter)
      Counts the number of entities that match the given filter.
      Specified by:
      count in interface CountService
      Parameters:
      filter - the filter, or null to use no filter
      Returns:

    • toSpec

      protected org.springframework.data.jpa.domain.Specification<T> toSpec(@Nullable Filter filter)
      Converts the given filter to a JPA specification.
      Parameters:
      filter - the filter to convert
      Returns:
      a JPA specification

    • resolveEntityClass

      protected Class<T> resolveEntityClass()