cdmlib-services/src/main/java/eu/etaxonomy/cdm/api/service/IdentificationKeyServiceImpl.java

   1 package eu.etaxonomy.cdm.api.service;
   2
   3 import java.util.ArrayList;
   4 import java.util.List;
   5
   6 import org.springframework.beans.factory.annotation.Autowired;
   7 import org.springframework.stereotype.Service;
   8 import org.springframework.transaction.annotation.Propagation;
   9 import org.springframework.transaction.annotation.Transactional;
  10
  11 import eu.etaxonomy.cdm.api.service.pager.Pager;
  12 import eu.etaxonomy.cdm.api.service.pager.impl.AbstractPagerImpl;
  13 import eu.etaxonomy.cdm.api.service.pager.impl.DefaultPagerImpl;
  14 import eu.etaxonomy.cdm.model.description.IIdentificationKey;
  15 import eu.etaxonomy.cdm.model.taxon.TaxonBase;
  16 import eu.etaxonomy.cdm.persistence.dao.description.IIdentificationKeyDao;
  17
  18 @Service
  19 @Transactional(readOnly = true, propagation = Propagation.SUPPORTS)
  20 public class IdentificationKeyServiceImpl implements IIdentificationKeyService {
  21
  22         IIdentificationKeyDao dao;
  23
  24         @Autowired
  25         public void setDao(IIdentificationKeyDao dao) {
  26                 this.dao = dao;
  27         }
  28
  29         public Pager<IIdentificationKey> page(Integer pageSize, Integer pageNumber,     List<String> propertyPaths) {
  30                 Integer numberOfResults = dao.count();
  31                 List<IIdentificationKey> results = new ArrayList<IIdentificationKey>();
  32                 pageNumber = pageNumber == null ? 0 : pageNumber;
  33                 if(numberOfResults > 0) { // no point checking again //TODO use AbstractPagerImpl.hasResultsInRange(numberOfResults, pageNumber, pageSize)
  34                         Integer start = pageSize == null ? 0 : pageSize * pageNumber;
  35                         results = dao.list(pageSize, start, propertyPaths);
  36                 }
  37                 return new DefaultPagerImpl<IIdentificationKey>(pageNumber, numberOfResults, pageSize, results);
  38         }
  39
  40
  41         public <T extends IIdentificationKey> Pager<T> findKeysConvering(TaxonBase taxon,
  42                         Class<T> type, Integer pageSize,
  43                         Integer pageNumber, List<String> propertyPaths) {
  44
  45                 Integer numberOfResults = dao.countByTaxonomicScope(taxon, type).intValue();
  46                 List<T> results = new ArrayList<T>();
  47                 if(AbstractPagerImpl.hasResultsInRange(numberOfResults, pageNumber, pageSize)){
  48                         results = dao.findByTaxonomicScope(taxon, type, pageSize, pageNumber, propertyPaths);
  49                 }
  50                 return new DefaultPagerImpl<T>(pageNumber, numberOfResults, pageSize, results);
  51         }
  52
  53 }