Hibernate Annotation 配置自身OneToMany

使用部门表SYS_DEPARTMENT进行测试
其中parent_id用于记录你部门ID

部门类

package pineapple.web.pal.model;

import java.io.Serializable;
import java.util.HashSet;

import javax.persistence.Basic;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.FetchType;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.JoinColumn;
import javax.persistence.ManyToOne;
import javax.persistence.OneToMany;
import javax.persistence.SequenceGenerator;
import javax.persistence.Table;

import org.hibernate.annotations.Cascade;
import org.hibernate.annotations.CascadeType;

/**
 */

@Entity
@Table(schema = "TRAIN", name = "SYS_DEPARTMENT")
public class Department implements Serializable {
	private static final long serialVersionUID = 1L;

	@Id 
	@SequenceGenerator(name = "SEQ_ROLE", sequenceName = "SEQ_ROLE")
	@GeneratedValue(strategy = GenerationType.SEQUENCE,generator = "SEQ_ROLE")
	private Integer id;

	@Column(name = "VERSION")
	private Integer version;

	@Column(name = "NAME", length = 100, nullable = false)
	private String name;

	@Column(name = "DESCRIPTION")
	private String description;

	@Column(name = "ENABLED")
	@Basic(fetch = FetchType.EAGER)
	private Integer enabled;
	
	@Column(name = "CODE")
	private String code;
	
	@Cascade(value={CascadeType.SAVE_UPDATE,CascadeType.DELETE})
	@ManyToOne(fetch=FetchType.LAZY)
	@JoinColumn(name="PARENT_ID", referencedColumnName="ID")
	private Department parent;
	
	@Cascade(value={CascadeType.SAVE_UPDATE})
	@OneToMany(mappedBy = "parent", fetch = FetchType.LAZY)
	private java.util.Set<Department> children;

测试通过