DepartmentService.java

package com.sobey.cmop.mvc.service.department;

import java.util.List;
import java.util.Map;

import javax.annotation.Resource;

import org.springframework.data.domain.Page;
import org.springframework.data.domain.PageRequest;
import org.springframework.data.jpa.domain.Specification;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import com.sobey.cmop.mvc.comm.BaseSevcie;
import com.sobey.cmop.mvc.dao.DepartmentDao;
import com.sobey.cmop.mvc.entity.Department;
import com.sobey.framework.utils.DynamicSpecifications;
import com.sobey.framework.utils.SearchFilter;

/**
 * 部门Department相关的管理类.
 * 
 * @author liukai
 * 
 */
@Service
@Transactional(readOnly = true)
public class DepartmentService extends BaseSevcie {

	@Resource
	private DepartmentDao departmentDao;

	/**
	 * 部门Department的分页查询.
	 * 
	 * @param searchParams
	 *            页面传递过来的参数
	 * @param pageNumber
	 * @param pageSize
	 * @return
	 */
	public Page<Department> getDepartmentPageable(Map<String, Object> searchParams, int pageNumber, int pageSize) {

		PageRequest pageRequest = buildPageRequest(pageNumber, pageSize);

		Map<String, SearchFilter> filters = SearchFilter.parse(searchParams);

		Specification<Department> spec = DynamicSpecifications.bySearchFilter(filters.values(), Department.class);

		return departmentDao.findAll(spec, pageRequest);
	}

	public Department getDepartment(Integer id) {
		return departmentDao.findOne(id);
	}

	/**
	 * 新增,更新部门 Department
	 * 
	 * @param department
	 * @return
	 */
	@Transactional(readOnly = false)
	public Department saveOrUpdateDepartment(Department department) {
		return departmentDao.save(department);
	}

	@Transactional(readOnly = false)
	public void deleteDepartment(Integer id) {
		departmentDao.delete(id);
	}

	/**
	 * 根据部门名获得部门信息
	 * 
	 * @param name
	 * @return
	 */
	public Department findDepartmentByName(String name) {
		return departmentDao.findByName(name);
	}

	/**
	 * 获得所有的部门信息
	 * 
	 * @return
	 */
	public List<Department> getDepartmentList() {
		return (List<Department>) departmentDao.findAll();
	}

}