package ${context.packageName}.service;
import javax.annotation.security.RolesAllowed;
import javax.persistence.EntityManager;
import ${context.packageName}.entity.${context.entityName};
import org.jrest4guice.client.Page;
import org.jrest4guice.client.Pagination;
import org.jrest4guice.persistence.jpa.JpaEntityManager;
import org.jrest4guice.transaction.annotations.Transactional;
import org.jrest4guice.transaction.annotations.TransactionalType;
import com.google.inject.Inject;
/**
*
* @author <a href="mailto:zhangyouqun@gmail.com">cnoss (QQ:86895156)</a>
*
*/
@SuppressWarnings( { "unchecked", "unused" })
public class ${context.entityName}Service{
private BaseEntityManager<String, ${context.entityName}> entityManager;
@Inject
private void init(EntityManager em) {
this.entityManager = new BaseEntityManager<String, ${context.entityName}>(
${context.entityName}.class, em);
}
@Transactional
public String create${context.entityName}(${context.entityName} entity) {
if (entity == null)
throw new RuntimeException("实体对象不能为空");
if (this.entityManager.loadByNamedQuery("byName", entity.getName()) != null) {
throw new RuntimeException("实体对象的名称相同，请重新输入");
}
this.entityManager.create(entity);
return entity.getId();
}
@Transactional
public void delete${context.entityName}(String entityId) {
String[] ids = entityId.split(",");
${context.entityName} entity;
for (String id : ids) {
entity = this.find${context.entityName}ById(id);
if (entity == null)
throw new RuntimeException("实体对象不存在");
this.entityManager.delete(entity);
}
}
@Transactional(type = TransactionalType.READOLNY)
public ${context.entityName} find${context.entityName}ById(String entityId) {
return this.entityManager.load(entityId);
}
@Transactional(type = TransactionalType.READOLNY)
public Page<${context.entityName}> list${context.entityName}s(int pageIndex, int pageSize)
throws RuntimeException {
return this.entityManager.pageByNamedQuery("list", new Pagination(
pageIndex, pageSize));
}
@Transactional
public void update${context.entityName}(${context.entityName} entity) {
if (entity == null)
throw new RuntimeException("实体对象不能为空");
${context.entityName} tmp${context.entityName} = this.entityManager.loadByNamedQuery(
"byName", entity.getName());
if (tmp${context.entityName} != null
&& !entity.getId().equals(tmp${context.entityName}.getId()))
throw new RuntimeException("实体对象的名称相同，请重新输入");
this.entityManager.update(entity);
}
}