115 lines
4.9 KiB
Java
115 lines
4.9 KiB
Java
package org.hostsharing.hsadminng.service;
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import java.util.List;
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import javax.persistence.criteria.JoinType;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import org.springframework.data.domain.Page;
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import org.springframework.data.domain.Pageable;
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import org.springframework.data.jpa.domain.Specification;
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import org.springframework.stereotype.Service;
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import org.springframework.transaction.annotation.Transactional;
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import io.github.jhipster.service.QueryService;
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import org.hostsharing.hsadminng.domain.Share;
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import org.hostsharing.hsadminng.domain.*; // for static metamodels
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import org.hostsharing.hsadminng.repository.ShareRepository;
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import org.hostsharing.hsadminng.service.dto.ShareCriteria;
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import org.hostsharing.hsadminng.service.dto.ShareDTO;
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import org.hostsharing.hsadminng.service.mapper.ShareMapper;
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/**
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* Service for executing complex queries for Share entities in the database.
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* The main input is a {@link ShareCriteria} which gets converted to {@link Specification},
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* in a way that all the filters must apply.
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* It returns a {@link List} of {@link ShareDTO} or a {@link Page} of {@link ShareDTO} which fulfills the criteria.
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*/
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@Service
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@Transactional(readOnly = true)
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public class ShareQueryService extends QueryService<Share> {
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private final Logger log = LoggerFactory.getLogger(ShareQueryService.class);
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private final ShareRepository shareRepository;
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private final ShareMapper shareMapper;
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public ShareQueryService(ShareRepository shareRepository, ShareMapper shareMapper) {
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this.shareRepository = shareRepository;
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this.shareMapper = shareMapper;
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}
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/**
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* Return a {@link List} of {@link ShareDTO} which matches the criteria from the database
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* @param criteria The object which holds all the filters, which the entities should match.
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* @return the matching entities.
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*/
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@Transactional(readOnly = true)
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public List<ShareDTO> findByCriteria(ShareCriteria criteria) {
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log.debug("find by criteria : {}", criteria);
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final Specification<Share> specification = createSpecification(criteria);
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return shareMapper.toDto(shareRepository.findAll(specification));
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}
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/**
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* Return a {@link Page} of {@link ShareDTO} which matches the criteria from the database
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* @param criteria The object which holds all the filters, which the entities should match.
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* @param page The page, which should be returned.
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* @return the matching entities.
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*/
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@Transactional(readOnly = true)
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public Page<ShareDTO> findByCriteria(ShareCriteria criteria, Pageable page) {
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log.debug("find by criteria : {}, page: {}", criteria, page);
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final Specification<Share> specification = createSpecification(criteria);
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return shareRepository.findAll(specification, page)
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.map(shareMapper::toDto);
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}
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/**
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* Return the number of matching entities in the database
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* @param criteria The object which holds all the filters, which the entities should match.
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* @return the number of matching entities.
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*/
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@Transactional(readOnly = true)
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public long countByCriteria(ShareCriteria criteria) {
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log.debug("count by criteria : {}", criteria);
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final Specification<Share> specification = createSpecification(criteria);
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return shareRepository.count(specification);
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}
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/**
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* Function to convert ShareCriteria to a {@link Specification}
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*/
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private Specification<Share> createSpecification(ShareCriteria criteria) {
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Specification<Share> specification = Specification.where(null);
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if (criteria != null) {
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if (criteria.getId() != null) {
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specification = specification.and(buildSpecification(criteria.getId(), Share_.id));
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}
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if (criteria.getDocumentDate() != null) {
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specification = specification.and(buildRangeSpecification(criteria.getDocumentDate(), Share_.documentDate));
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}
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if (criteria.getValueDate() != null) {
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specification = specification.and(buildRangeSpecification(criteria.getValueDate(), Share_.valueDate));
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}
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if (criteria.getAction() != null) {
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specification = specification.and(buildSpecification(criteria.getAction(), Share_.action));
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}
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if (criteria.getQuantity() != null) {
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specification = specification.and(buildRangeSpecification(criteria.getQuantity(), Share_.quantity));
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}
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if (criteria.getRemark() != null) {
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specification = specification.and(buildStringSpecification(criteria.getRemark(), Share_.remark));
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}
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if (criteria.getMembershipId() != null) {
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specification = specification.and(buildSpecification(criteria.getMembershipId(),
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root -> root.join(Share_.membership, JoinType.LEFT).get(Membership_.id)));
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}
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}
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return specification;
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}
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}
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